Deareditor,Domesticated silkworms(Bombyx mori)serve as the cornerstone of sericulture,as they have the ability to synthesize abundant silk proteins in their silk gland,which is utilized for cocooning and pupation in t...Deareditor,Domesticated silkworms(Bombyx mori)serve as the cornerstone of sericulture,as they have the ability to synthesize abundant silk proteins in their silk gland,which is utilized for cocooning and pupation in the mature stage.展开更多
Protein fibers derived from silk fibroin(SF)were chemically extracted and purified from cocoons.It was used as a reinforced fiber for hydrogel formation with collagen(Col)and hyaluronic acid(HA).Calcium chloride(8 wt....Protein fibers derived from silk fibroin(SF)were chemically extracted and purified from cocoons.It was used as a reinforced fiber for hydrogel formation with collagen(Col)and hyaluronic acid(HA).Calcium chloride(8 wt.%)was employed as a crosslinking reagent to synthesize the SF/Col/HA-based hydrogel composite.FTIR spec-troscopy confirmed the presence of N-H stretching due to the plane bending of amide II in theβ-sheet structure.XRD analysis confirmed the crystallinity of the SF/Col/HA-based hydrogel composite.Scanning electron mi-croscopy revealed three-dimensional porous structures with interconnected pores.These porous structures can serve as reservoirs for storing adsorbent media.The hydrogel composite was thermally stable at 250℃.The lowboiling bound solvent evaporation temperature,glass transition temperature,and degradation temperature were 102℃-105℃,298℃-300℃,and 524℃-545℃,respectively.The ranges of porosity and gel fraction were 60%-80%and 90%-95%,respectively.The hydrogel composite was rapidly swollen within 1 h,reaching a plateau afterward.The compressive strength was 4-6 MPa.As absorbent media,hydrogels can easily adhere to lead ions via electrostatic interactions.They can be used as reservoirs for the adsorption of heavy metals.展开更多
BACKGROUND Abdominal cocoons(ACs)lack characteristic clinical manifestations and are main-ly intestinal obstructions that are difficult to distinguish from intestinal obstruc-tion caused by other causes,resulting in d...BACKGROUND Abdominal cocoons(ACs)lack characteristic clinical manifestations and are main-ly intestinal obstructions that are difficult to distinguish from intestinal obstruc-tion caused by other causes,resulting in difficult preoperative diagnosis and misdiagnosis and mistreatment.There are no reports of enterostomy occlusion caused by ACs in the literature at home and abroad.CASE SUMMARY Here,we report a 16-year-old female patient with intestinal obstruction due to AC.She was treated with abdominal surgery three times.First,she underwent a laparotomy for peritonitis after trauma from a traffic accident.During the pro-cedure,pelvic empyema,severe intestinal adhesions,and damage to the serous layer of the rectum were found,but no significant intestinal rupture and perfo-ration were found.As a precaution,she underwent a prophylactic ileostomy after a flush in her abdomen.The second and third surgeries were for treatment of recurrent stoma obstruction.The patient’s condition was complicated for a long period,but after comprehensive treatment by our department,the patient was successfully discharged from the hospital and is currently recovering well.CONCLUSION Currently,abdominal contrast-enhanced computed tomography is the best imaging modality for pre-operative evaluation of AC,but most patients are diagnosed only after intrao-perative exploration.For the treatment of typical or severe ACs,the primary me-thod of removal and healing of ACs is complete removal of the abdominal fibrous membrane.Finding a breakthrough in the anatomy is the key to the success of the surgery.展开更多
BACKGROUND Sclerosing encapsulating peritonitis(SEP),also known as abdominal cocoon syndrome,is rare in children.The etiology of primary SEP is believed to be associated with retrograde menstruation or viral peritonit...BACKGROUND Sclerosing encapsulating peritonitis(SEP),also known as abdominal cocoon syndrome,is rare in children.The etiology of primary SEP is believed to be associated with retrograde menstruation or viral peritonitis in young adolescent girls,whereas secondary SEP refers to SEP caused by other factors such as surgery,peritoneal dialysis,or tuberculosis.Secondary SEP is rare and lack diagnostic specificity in children.Given the potential to cause acute intestinal obstruction,surgical intervention is often required.CASE SUMMARY We report the case of a 10-year-old girl with secondary SEP who was admitted to our center with acute bowel obstruction.CONCLUSION In this report,we emphasized the imaging manifestations,diagnosis,and operative management of the case.Although postoperative SEP in children is rare,the long-term prognosis is favorable when accompanied with accurate diagnosis,appropriate perioperative management,and timely follow-up.展开更多
BACKGROUND Abdominal cocoon syndrome(ACS)represents a category within sclerosing encapsulating peritonitis,characterized by the encapsulation of internal organs with a fibrous,cocoon-like membrane of unknown origin,re...BACKGROUND Abdominal cocoon syndrome(ACS)represents a category within sclerosing encapsulating peritonitis,characterized by the encapsulation of internal organs with a fibrous,cocoon-like membrane of unknown origin,resulting in bowel obstruction and ischemia.Diagnosing this condition before surgery poses a cha-llenge,often requiring confirmation during laparotomy.In this context,we depict three instances of ACS:One linked to intestinal obstruction,the second exclu-sively manifesting as intestinal ischemia without any obstruction,and the final case involving a discrepancy between the radiologist and the surgeon.CASE SUMMARY Three male patients,aged 53,58,and 61 originating from Northern Thailand,arrived at our medical facility complaining of abdominal pain without any prior surgeries.Their vital signs remained stable during the assessment.The diagnosis of abdominal cocoon was confirmed through abdominal computed tomography(CT)before surgery.In the first case,the CT scan revealed capsules around the small bowel loops,showing no enhancement,along with mesenteric congestion affecting both small and large bowel loops,without a clear obstruction.The second case showed intestinal obstruction due to an encapsulated capsule on the CT scan.In the final case,a patient presented with recurring abdominal pain.Initially,the radiologist suspected enteritis as the cause after the CT scan.However,a detailed review led the surgeon to suspect encapsulating peritoneal sclerosis(ACS)and subsequently perform surgery.The surgical procedure involved complete removal of the encapsulating structure,resection of a portion of the small bowel,and end-to-end anastomosis.No complications occurred during surgery,and the patients had a smooth recovery after surgery,eventually discharged in good health.The histopathological examination of the fibrous membrane(cocoon)across all cases consistently revealed the presence of fibro-collagenous tissue,without any indications of malignancy.CONCLUSION Individuals diagnosed with abdominal cocoons commonly manifest vague symptoms of abdominal discomfort.An elevated degree of clinical suspicion,combined with the application of appropriate radiological evaluations,markedly improves the probability of identifying the abdominal cocoon before surgical intervention.In cases of complete bowel obstruction or ischemia,the established norm is the comprehensive removal of the peritoneal sac as part of standard care.Resection with intestinal anastomosis is advised solely when ischemia and gangrene have been confirmed.展开更多
Some living organisms with hierarchical structures in nature have received extensive attention in various fields.The hierarchical structure with multiple pores,a large number of solid-gas interfaces and tortuous condu...Some living organisms with hierarchical structures in nature have received extensive attention in various fields.The hierarchical structure with multiple pores,a large number of solid-gas interfaces and tortuous conduction paths provide a new direction for the development of thermal insulation materials,making the living creatures under these extreme conditions become the bionic objects of scientific researchers.In this review,the research progress of bionic hierarchical structure in the field of heat insulation is highlighted.Polar bears,cocoons,penguin feathers and wool are typical examples of heat preservation hierarchy in nature to introduce their morphological characteristics.At the same time,the thermal insulation mechanism,fractal model and several preparation methods of bionic hierarchical structures are emphatically discussed.The application of hierarchical structures in various fields,especially in thermal insulation and infrared thermal stealth,is summarised.Finally,the hierarchical structure is prospected.展开更多
[Objective] To study the cocoon traits of wild silkworm descendants. [Method] In the selective breeding of domesticated raising wild silkworm and wild silkworm descendants, investigation on the traits of the built coc...[Objective] To study the cocoon traits of wild silkworm descendants. [Method] In the selective breeding of domesticated raising wild silkworm and wild silkworm descendants, investigation on the traits of the built cocoons was carried out. [Result] The pointed traits of cocoons displayed obviously in the wild silkworm descendants, its pointed parts were consistent with the rear part of silkworm chrysalis, and the female silkworm has slight difference, indicating the silkworm co- coon pointed trait was hereditary. [Conclusion] This study provided references for the study of silkworm cocoon traits of wild silkworm descendant and guides the selective breeding of silkworm variety.展开更多
This paper summarized the diversity and prominent characteristics of naturally colored cocoon resources of Bombyx mori, and introduced the production methods of colored cocoons, the development and utilization of natu...This paper summarized the diversity and prominent characteristics of naturally colored cocoon resources of Bombyx mori, and introduced the production methods of colored cocoons, the development and utilization of naturally colored cocoon resources at home and abroad as well as the variety breeding instances, based on which suggestions were proposed for the development of colored cocoon industry.展开更多
[Objective] This study aimed to develop a new Bombyx mori variety Shuhuang No.1 and investigate its characteristics.[Method] The new variety was developed through cross breeding and pedigree separation.Its characteris...[Objective] This study aimed to develop a new Bombyx mori variety Shuhuang No.1 and investigate its characteristics.[Method] The new variety was developed through cross breeding and pedigree separation.Its characteristics were identified by laboratory tests and rural promotion practices in Sichuan Province.[Result]The cocoon produced by the new variety Shuhuang No.1 was golden-yellow and radiantly beautiful.Shuhuang No.1 was strong and easy to rear,uniform in development.The male and female ones could be distinguished by their larval color and markings.The cocoon yield per 10 000 the 4th instar larvae reached 20.30 kg; the length of a cocoon filament was about 1 115.0 m,and a non-broken filament was 882.95 mm long,accounting for 79.15％ of the total length.The raw silk ratio of fresh cocoon was 18.39％,and the neatness was 91.25 point.The main economic features of Shuhuang No.1 were better than those of the control.[Conclusion] The new variety had been approved by Sichuan Silkworm Evaluation Commission.It can be promoted in parent silkworm rearing areas Sichuan,Chongqing,Yangtze River basin.展开更多
The exploration of the causes of dropping end is much necessary in raising reelabilityof poor raw cocoon. This paper, by an analysis of the curves of gumming force and dissoci-ating tension of cocoon filament, put for...The exploration of the causes of dropping end is much necessary in raising reelabilityof poor raw cocoon. This paper, by an analysis of the curves of gumming force and dissoci-ating tension of cocoon filament, put forward a view that dissociation consists of a processof alternate tension and relaxation of the tensile force on the bave being dissociated. Also,based on the cocooning pattern of silkworms and the composition of the tensile force indissociation, a conclusion was reached that dropping end takes place when the energy con-sumed in dissociating a certain length of bave goes beyond the work of brittle rupture of thebave. Consequently tests were made in possible ways to improve reelability and the resultswere discussed.展开更多
Encapsulating peritoneal sclerosis(EPS) is a debilitating condition characterized by a fibrocollagenous membrane encasing the small intestine, resulting in recurrent small bowel obstructions. EPS is most commonly asso...Encapsulating peritoneal sclerosis(EPS) is a debilitating condition characterized by a fibrocollagenous membrane encasing the small intestine, resulting in recurrent small bowel obstructions. EPS is most commonly associated with long-term peritoneal dialysis, though medications, peritoneal infection, and systemic inflammatory disorders have been implicated. Many cases remain idiopathic. Diagnosis is often delayed given the rarity of the disorder combined with non-specific symptoms and laboratory findings. Although cross-sectional imaging with computed tomography of the abdomen can be suggestive of the disorder, many patients undergo exploratory laparotomy for diagnosis. Mortality approaches 50% one year after diagnosis. Treatment for EPS involves treating the underlying condition or eliminating possible inciting agents(i.e. peritoneal dialysis, medications, infections) and nutritional support, frequently with total parenteral nutrition. EPSspecific treatment depends on the disease stage. In the inflammatory stage, corticosteroids are the treatment of choice, while in the fibrotic stage, tamoxifen may be beneficial. In practice, distinguishing between stages may be difficult and both may be used. Surgical intervention, consisting of peritonectomy and enterolysis, is timeconsuming and high-risk and is reserved for situations in which conservative medical therapy fails in institutions with surgical expertise in this area. Herein we review the available literature of the etiology, pathogenesis, diagnosis, and treatment of this rare, but potentially devastating disease.展开更多
Abdominal cocoon syndrome is a rare cause of intestinal obstruction with unknown etiology. Diagnosis of this syndrome, which can be summarized as the small intestine being surrounded by a fibrous capsule not containin...Abdominal cocoon syndrome is a rare cause of intestinal obstruction with unknown etiology. Diagnosis of this syndrome, which can be summarized as the small intestine being surrounded by a fibrous capsule not containing the mesothelium, is difficult in the preoperative period. A 47-year-old male patient was referred to the emergency department with complaints of abdominal pain, nausea, and vomiting for two days. The abdominal computed tomography examination detected dilated small intestinal loops containing air-fluid levels clustered in the left upper quadrant of the abdomen and surrounded by a thick, saclike, contrast-enhanced membrane. During exploratory surgery, a capsular structure was identified in the upper left quadrant with a regular surface that was solid-fibrous in nature. Ab-dominal cocoon syndrome is a rarely seen condition, for which the preoperative diagnosis is difficult. The combination of physical examination and radiological signs, and the knowledge of "recurrent characteristics of the complaints" that can be learned by a careful history, may be helpful in diagnosis.展开更多
基金supported by grants from the National Natural Science Foundation of China(No.32022015 and 31871295)the Training Program of the Major Research Plan of the National Natural Science Foundation of China(No.92268120)+1 种基金the Starry Night Science Fund of Zhejiang University Shanghai Institute for Advanced Study(No.SN-ZJU-SIAS-008the CAMS Innovation Fund for Medical Sciences(No.CIFMS-2021-I2M-5-015).
文摘Deareditor,Domesticated silkworms(Bombyx mori)serve as the cornerstone of sericulture,as they have the ability to synthesize abundant silk proteins in their silk gland,which is utilized for cocooning and pupation in the mature stage.
基金supported by a Matching Fund between Tham-masat University Research Fund and the National Taipei University of Technology(Taipei Tech),contract no MF 1/2567National Taipei University of Technology-Thammasat University Joint Research Program(NTUT-TU Joint Research Program NTUT-TU-113-03).
文摘Protein fibers derived from silk fibroin(SF)were chemically extracted and purified from cocoons.It was used as a reinforced fiber for hydrogel formation with collagen(Col)and hyaluronic acid(HA).Calcium chloride(8 wt.%)was employed as a crosslinking reagent to synthesize the SF/Col/HA-based hydrogel composite.FTIR spec-troscopy confirmed the presence of N-H stretching due to the plane bending of amide II in theβ-sheet structure.XRD analysis confirmed the crystallinity of the SF/Col/HA-based hydrogel composite.Scanning electron mi-croscopy revealed three-dimensional porous structures with interconnected pores.These porous structures can serve as reservoirs for storing adsorbent media.The hydrogel composite was thermally stable at 250℃.The lowboiling bound solvent evaporation temperature,glass transition temperature,and degradation temperature were 102℃-105℃,298℃-300℃,and 524℃-545℃,respectively.The ranges of porosity and gel fraction were 60%-80%and 90%-95%,respectively.The hydrogel composite was rapidly swollen within 1 h,reaching a plateau afterward.The compressive strength was 4-6 MPa.As absorbent media,hydrogels can easily adhere to lead ions via electrostatic interactions.They can be used as reservoirs for the adsorption of heavy metals.
基金Supported by Suqian Science and Technology Project Contract,No.S201910。
文摘BACKGROUND Abdominal cocoons(ACs)lack characteristic clinical manifestations and are main-ly intestinal obstructions that are difficult to distinguish from intestinal obstruc-tion caused by other causes,resulting in difficult preoperative diagnosis and misdiagnosis and mistreatment.There are no reports of enterostomy occlusion caused by ACs in the literature at home and abroad.CASE SUMMARY Here,we report a 16-year-old female patient with intestinal obstruction due to AC.She was treated with abdominal surgery three times.First,she underwent a laparotomy for peritonitis after trauma from a traffic accident.During the pro-cedure,pelvic empyema,severe intestinal adhesions,and damage to the serous layer of the rectum were found,but no significant intestinal rupture and perfo-ration were found.As a precaution,she underwent a prophylactic ileostomy after a flush in her abdomen.The second and third surgeries were for treatment of recurrent stoma obstruction.The patient’s condition was complicated for a long period,but after comprehensive treatment by our department,the patient was successfully discharged from the hospital and is currently recovering well.CONCLUSION Currently,abdominal contrast-enhanced computed tomography is the best imaging modality for pre-operative evaluation of AC,but most patients are diagnosed only after intrao-perative exploration.For the treatment of typical or severe ACs,the primary me-thod of removal and healing of ACs is complete removal of the abdominal fibrous membrane.Finding a breakthrough in the anatomy is the key to the success of the surgery.
文摘BACKGROUND Sclerosing encapsulating peritonitis(SEP),also known as abdominal cocoon syndrome,is rare in children.The etiology of primary SEP is believed to be associated with retrograde menstruation or viral peritonitis in young adolescent girls,whereas secondary SEP refers to SEP caused by other factors such as surgery,peritoneal dialysis,or tuberculosis.Secondary SEP is rare and lack diagnostic specificity in children.Given the potential to cause acute intestinal obstruction,surgical intervention is often required.CASE SUMMARY We report the case of a 10-year-old girl with secondary SEP who was admitted to our center with acute bowel obstruction.CONCLUSION In this report,we emphasized the imaging manifestations,diagnosis,and operative management of the case.Although postoperative SEP in children is rare,the long-term prognosis is favorable when accompanied with accurate diagnosis,appropriate perioperative management,and timely follow-up.
文摘BACKGROUND Abdominal cocoon syndrome(ACS)represents a category within sclerosing encapsulating peritonitis,characterized by the encapsulation of internal organs with a fibrous,cocoon-like membrane of unknown origin,resulting in bowel obstruction and ischemia.Diagnosing this condition before surgery poses a cha-llenge,often requiring confirmation during laparotomy.In this context,we depict three instances of ACS:One linked to intestinal obstruction,the second exclu-sively manifesting as intestinal ischemia without any obstruction,and the final case involving a discrepancy between the radiologist and the surgeon.CASE SUMMARY Three male patients,aged 53,58,and 61 originating from Northern Thailand,arrived at our medical facility complaining of abdominal pain without any prior surgeries.Their vital signs remained stable during the assessment.The diagnosis of abdominal cocoon was confirmed through abdominal computed tomography(CT)before surgery.In the first case,the CT scan revealed capsules around the small bowel loops,showing no enhancement,along with mesenteric congestion affecting both small and large bowel loops,without a clear obstruction.The second case showed intestinal obstruction due to an encapsulated capsule on the CT scan.In the final case,a patient presented with recurring abdominal pain.Initially,the radiologist suspected enteritis as the cause after the CT scan.However,a detailed review led the surgeon to suspect encapsulating peritoneal sclerosis(ACS)and subsequently perform surgery.The surgical procedure involved complete removal of the encapsulating structure,resection of a portion of the small bowel,and end-to-end anastomosis.No complications occurred during surgery,and the patients had a smooth recovery after surgery,eventually discharged in good health.The histopathological examination of the fibrous membrane(cocoon)across all cases consistently revealed the presence of fibro-collagenous tissue,without any indications of malignancy.CONCLUSION Individuals diagnosed with abdominal cocoons commonly manifest vague symptoms of abdominal discomfort.An elevated degree of clinical suspicion,combined with the application of appropriate radiological evaluations,markedly improves the probability of identifying the abdominal cocoon before surgical intervention.In cases of complete bowel obstruction or ischemia,the established norm is the comprehensive removal of the peritoneal sac as part of standard care.Resection with intestinal anastomosis is advised solely when ischemia and gangrene have been confirmed.
文摘Some living organisms with hierarchical structures in nature have received extensive attention in various fields.The hierarchical structure with multiple pores,a large number of solid-gas interfaces and tortuous conduction paths provide a new direction for the development of thermal insulation materials,making the living creatures under these extreme conditions become the bionic objects of scientific researchers.In this review,the research progress of bionic hierarchical structure in the field of heat insulation is highlighted.Polar bears,cocoons,penguin feathers and wool are typical examples of heat preservation hierarchy in nature to introduce their morphological characteristics.At the same time,the thermal insulation mechanism,fractal model and several preparation methods of bionic hierarchical structures are emphatically discussed.The application of hierarchical structures in various fields,especially in thermal insulation and infrared thermal stealth,is summarised.Finally,the hierarchical structure is prospected.
基金Supported by the Agricultural Fund Project of Ministry of Science and Technology(Y0415)the China Agriculture Research System(Sericulture)~~
文摘[Objective] To study the cocoon traits of wild silkworm descendants. [Method] In the selective breeding of domesticated raising wild silkworm and wild silkworm descendants, investigation on the traits of the built cocoons was carried out. [Result] The pointed traits of cocoons displayed obviously in the wild silkworm descendants, its pointed parts were consistent with the rear part of silkworm chrysalis, and the female silkworm has slight difference, indicating the silkworm co- coon pointed trait was hereditary. [Conclusion] This study provided references for the study of silkworm cocoon traits of wild silkworm descendant and guides the selective breeding of silkworm variety.
文摘This paper summarized the diversity and prominent characteristics of naturally colored cocoon resources of Bombyx mori, and introduced the production methods of colored cocoons, the development and utilization of naturally colored cocoon resources at home and abroad as well as the variety breeding instances, based on which suggestions were proposed for the development of colored cocoon industry.
文摘[Objective] This study aimed to develop a new Bombyx mori variety Shuhuang No.1 and investigate its characteristics.[Method] The new variety was developed through cross breeding and pedigree separation.Its characteristics were identified by laboratory tests and rural promotion practices in Sichuan Province.[Result]The cocoon produced by the new variety Shuhuang No.1 was golden-yellow and radiantly beautiful.Shuhuang No.1 was strong and easy to rear,uniform in development.The male and female ones could be distinguished by their larval color and markings.The cocoon yield per 10 000 the 4th instar larvae reached 20.30 kg; the length of a cocoon filament was about 1 115.0 m,and a non-broken filament was 882.95 mm long,accounting for 79.15％ of the total length.The raw silk ratio of fresh cocoon was 18.39％,and the neatness was 91.25 point.The main economic features of Shuhuang No.1 were better than those of the control.[Conclusion] The new variety had been approved by Sichuan Silkworm Evaluation Commission.It can be promoted in parent silkworm rearing areas Sichuan,Chongqing,Yangtze River basin.
文摘The exploration of the causes of dropping end is much necessary in raising reelabilityof poor raw cocoon. This paper, by an analysis of the curves of gumming force and dissoci-ating tension of cocoon filament, put forward a view that dissociation consists of a processof alternate tension and relaxation of the tensile force on the bave being dissociated. Also,based on the cocooning pattern of silkworms and the composition of the tensile force indissociation, a conclusion was reached that dropping end takes place when the energy con-sumed in dissociating a certain length of bave goes beyond the work of brittle rupture of thebave. Consequently tests were made in possible ways to improve reelability and the resultswere discussed.
文摘Encapsulating peritoneal sclerosis(EPS) is a debilitating condition characterized by a fibrocollagenous membrane encasing the small intestine, resulting in recurrent small bowel obstructions. EPS is most commonly associated with long-term peritoneal dialysis, though medications, peritoneal infection, and systemic inflammatory disorders have been implicated. Many cases remain idiopathic. Diagnosis is often delayed given the rarity of the disorder combined with non-specific symptoms and laboratory findings. Although cross-sectional imaging with computed tomography of the abdomen can be suggestive of the disorder, many patients undergo exploratory laparotomy for diagnosis. Mortality approaches 50% one year after diagnosis. Treatment for EPS involves treating the underlying condition or eliminating possible inciting agents(i.e. peritoneal dialysis, medications, infections) and nutritional support, frequently with total parenteral nutrition. EPSspecific treatment depends on the disease stage. In the inflammatory stage, corticosteroids are the treatment of choice, while in the fibrotic stage, tamoxifen may be beneficial. In practice, distinguishing between stages may be difficult and both may be used. Surgical intervention, consisting of peritonectomy and enterolysis, is timeconsuming and high-risk and is reserved for situations in which conservative medical therapy fails in institutions with surgical expertise in this area. Herein we review the available literature of the etiology, pathogenesis, diagnosis, and treatment of this rare, but potentially devastating disease.
文摘Abdominal cocoon syndrome is a rare cause of intestinal obstruction with unknown etiology. Diagnosis of this syndrome, which can be summarized as the small intestine being surrounded by a fibrous capsule not containing the mesothelium, is difficult in the preoperative period. A 47-year-old male patient was referred to the emergency department with complaints of abdominal pain, nausea, and vomiting for two days. The abdominal computed tomography examination detected dilated small intestinal loops containing air-fluid levels clustered in the left upper quadrant of the abdomen and surrounded by a thick, saclike, contrast-enhanced membrane. During exploratory surgery, a capsular structure was identified in the upper left quadrant with a regular surface that was solid-fibrous in nature. Ab-dominal cocoon syndrome is a rarely seen condition, for which the preoperative diagnosis is difficult. The combination of physical examination and radiological signs, and the knowledge of "recurrent characteristics of the complaints" that can be learned by a careful history, may be helpful in diagnosis.
