Lymphangioma, a benign neoplasm of the lymphatic system, is common in children but rare in adults. Its clinical manifestations include abdominal pain, nausea, vomiting and a palpable mass. However, abdominal sonograph...Lymphangioma, a benign neoplasm of the lymphatic system, is common in children but rare in adults. Its clinical manifestations include abdominal pain, nausea, vomiting and a palpable mass. However, abdominal sonography or abdominal computed tomography （CT） scan can also incidentally reveal lymphangioma. A larger or symptomatic lymphangioma is treated with total resection to prevent recurrence, infection, torsion and enlargement. Although lymphangioma rarely becomes malignant, its prognosis is generally good. We report a cystic lymphangioma of the spleen and retroperitoneum, which was incidentally found in a 56-year-old man who was hospitalized due to a colon mass. Physical examination showed no specific findings. Abdominal CT revealed a 5.7 cm, non-enhanced multilobulated cystic mass with multiple sepia in the spleen and a 10 cm lobulated cystic mass in the paraaortic area. Splenectomy and retroperitoneal resection of the cystic mass were conducted. The endothelium of splenic and retroperitoneal cyst was immunohistochemically stained with D2-40 antibody. The patient was finally diagnosed with splenic cystic and retroperitoneal cavernous lymphangioma.展开更多
BACKGROUND:Castleman’s disease is a rare lymphoproliferative disease of unknown cause.Most multicentric cases described have been of the plasma-cell variety.This article presents a case of multicentric hyaline-vascul...BACKGROUND:Castleman’s disease is a rare lymphoproliferative disease of unknown cause.Most multicentric cases described have been of the plasma-cell variety.This article presents a case of multicentric hyaline-vascular Castleman’s disease in the retroperitoneum with the ultrasonographic and computed tomography(CT)imaging manifestations. METHODS:During routine physical examination,a mass was detected in the left abdomen of a 53-year-old man with no signs or symptoms.The patient underwent ultrasoundguided aspiration biopsy and operative excision after laboratory examination,ultrasonography,and CT. RESULTS:Ultrasonography demonstrated a dominant hypoechogenic mass with hypervascularity in the retroperitoneum.CT detected a relatively homogenous enhanced lesion and several satellite nodules.After the mass and several lymph nodes were resected, histopathologic examination demonstrated a lymphocytepredominant infiltrate surrounding the germinal centres and extensive capillary proliferation,consistent with the hyaline-vascular type of Castleman’s disease.The patient received postoperative chemotherapy and remained free of recurrence 3 months later. CONCLUSION:Ultrasonography and contrast-enhanced CT can provide a positive differential diagnosis of hyalinevascular Castleman’s disease which is a kind of giant lymph node hyperplasia with hypervascularity.展开更多
Liposarcoma is a malignant neoplasm of mesodermal origin, which among sarcomas, 10% to 20% are located in the retroperitoneum. The case presented shows a 50-year-old male patient who initially presented weight loss a...Liposarcoma is a malignant neoplasm of mesodermal origin, which among sarcomas, 10% to 20% are located in the retroperitoneum. The case presented shows a 50-year-old male patient who initially presented weight loss and abdominal pain in the left iliac fossa. A tumor mass of hardened consistency was palpated in virtually all the abdomen. An abdominal ultrasound and a computed tomography of the abdomen were performed and confirmed the tumor mass. An exploratory laparotomy was performed, with removal of bulky abdominal mass of greasy consistency. A histopathological study of the piece reported myxoid liposarcoma. Clinical and prognostic features, as well as oncologic outcomes, are well known in this group of patients. The patient has been in the outpatient clinic for 7 years without tumor recurrence. Computed tomography is the fundamental study for the diagnosis of imaging. The treatment of choice consists in an aggressive approach aiming the complete resection, which is a major predictor of local and distant recurrence and survival.展开更多
Castleman＇s disease （CD） is a rare lymphoproliferative syndrome typically involving a mediastinal mass. CD in the pararenal area should be distinguished from lymphoma diseases. We analyzed the clinical features oft...Castleman＇s disease （CD） is a rare lymphoproliferative syndrome typically involving a mediastinal mass. CD in the pararenal area should be distinguished from lymphoma diseases. We analyzed the clinical features often CD patients in the pararenal retroperitoneum that mimics other tumors to summarize some of our experiences and conduct a literature review.展开更多
Castleman＇s disease （CD） is a benign lymphoid neoplasm characterized by massive proliferation of the lymphoid tissue due to an uncertain cause. Two clinical types （localized, multicentric） have been described wit...Castleman＇s disease （CD） is a benign lymphoid neoplasm characterized by massive proliferation of the lymphoid tissue due to an uncertain cause. Two clinical types （localized, multicentric） have been described with three histological variants （hyaline-vascular, plasma cell and mixed type）. The expected localization is mediastinum and rarely pararenal retroperitoneum. We reported two cases of CD in the pararenal retroperitoneum, one was complicated with autoimmune hemolytic anemia.展开更多
文摘Lymphangioma, a benign neoplasm of the lymphatic system, is common in children but rare in adults. Its clinical manifestations include abdominal pain, nausea, vomiting and a palpable mass. However, abdominal sonography or abdominal computed tomography （CT） scan can also incidentally reveal lymphangioma. A larger or symptomatic lymphangioma is treated with total resection to prevent recurrence, infection, torsion and enlargement. Although lymphangioma rarely becomes malignant, its prognosis is generally good. We report a cystic lymphangioma of the spleen and retroperitoneum, which was incidentally found in a 56-year-old man who was hospitalized due to a colon mass. Physical examination showed no specific findings. Abdominal CT revealed a 5.7 cm, non-enhanced multilobulated cystic mass with multiple sepia in the spleen and a 10 cm lobulated cystic mass in the paraaortic area. Splenectomy and retroperitoneal resection of the cystic mass were conducted. The endothelium of splenic and retroperitoneal cyst was immunohistochemically stained with D2-40 antibody. The patient was finally diagnosed with splenic cystic and retroperitoneal cavernous lymphangioma.
文摘BACKGROUND:Castleman’s disease is a rare lymphoproliferative disease of unknown cause.Most multicentric cases described have been of the plasma-cell variety.This article presents a case of multicentric hyaline-vascular Castleman’s disease in the retroperitoneum with the ultrasonographic and computed tomography(CT)imaging manifestations. METHODS:During routine physical examination,a mass was detected in the left abdomen of a 53-year-old man with no signs or symptoms.The patient underwent ultrasoundguided aspiration biopsy and operative excision after laboratory examination,ultrasonography,and CT. RESULTS:Ultrasonography demonstrated a dominant hypoechogenic mass with hypervascularity in the retroperitoneum.CT detected a relatively homogenous enhanced lesion and several satellite nodules.After the mass and several lymph nodes were resected, histopathologic examination demonstrated a lymphocytepredominant infiltrate surrounding the germinal centres and extensive capillary proliferation,consistent with the hyaline-vascular type of Castleman’s disease.The patient received postoperative chemotherapy and remained free of recurrence 3 months later. CONCLUSION:Ultrasonography and contrast-enhanced CT can provide a positive differential diagnosis of hyalinevascular Castleman’s disease which is a kind of giant lymph node hyperplasia with hypervascularity.
文摘Liposarcoma is a malignant neoplasm of mesodermal origin, which among sarcomas, 10% to 20% are located in the retroperitoneum. The case presented shows a 50-year-old male patient who initially presented weight loss and abdominal pain in the left iliac fossa. A tumor mass of hardened consistency was palpated in virtually all the abdomen. An abdominal ultrasound and a computed tomography of the abdomen were performed and confirmed the tumor mass. An exploratory laparotomy was performed, with removal of bulky abdominal mass of greasy consistency. A histopathological study of the piece reported myxoid liposarcoma. Clinical and prognostic features, as well as oncologic outcomes, are well known in this group of patients. The patient has been in the outpatient clinic for 7 years without tumor recurrence. Computed tomography is the fundamental study for the diagnosis of imaging. The treatment of choice consists in an aggressive approach aiming the complete resection, which is a major predictor of local and distant recurrence and survival.
文摘Castleman＇s disease （CD） is a rare lymphoproliferative syndrome typically involving a mediastinal mass. CD in the pararenal area should be distinguished from lymphoma diseases. We analyzed the clinical features often CD patients in the pararenal retroperitoneum that mimics other tumors to summarize some of our experiences and conduct a literature review.
文摘Castleman＇s disease （CD） is a benign lymphoid neoplasm characterized by massive proliferation of the lymphoid tissue due to an uncertain cause. Two clinical types （localized, multicentric） have been described with three histological variants （hyaline-vascular, plasma cell and mixed type）. The expected localization is mediastinum and rarely pararenal retroperitoneum. We reported two cases of CD in the pararenal retroperitoneum, one was complicated with autoimmune hemolytic anemia.
