AIM To evaluate the value of pre-treatment 18F-FDG PET/CT in patients with HCC following liver radioembolization.METHODS We identified 34 patients with HCC who underwent an FDG PET/CT scan prior to hepatic radioemboli...AIM To evaluate the value of pre-treatment 18F-FDG PET/CT in patients with HCC following liver radioembolization.METHODS We identified 34 patients with HCC who underwent an FDG PET/CT scan prior to hepatic radioembolization at our institution between 2009 and 2013. Patients wereseen in clinic one month after radioembolization and then at 2-3 mo intervals. We assessed the influence of FDG tumor uptake on outcomes including local liver control(LLC), distant liver control(DLC), time to distant metastases(DM), progression free survival(PFS) and overall survival(OS).RESULTS The majority of patients were males(n = 25, 74%), and had Child Pugh Class A(n = 31, 91%), with a median age of 68 years(46-84 years). FDG-avid disease was found in 19(56%) patients with SUVmax ranging from 3 to 20. Female patients were more likely to have an FDG-avid HCC(P = 0.02). Median follow up of patients following radioembolization was 12 months(1.2-62.8 mo). FDG-avid disease was associated with a decreased 1 year LLC, DLC, DM and PFS(P < 0.05). Using multivariate analysis, FDG avidity predicted for LLC, DLC, and PFS(all P < 0.05).CONCLUSION In this retrospective study, pre-treatment HCC FDGavidity was found to be associated with worse LLC, DLC, and PFS following radioembolization. Larger studies are needed to validate our initial findings to assess the role of F-18-FDG PET/CT scans as biomarker for patients with HCC following radioembolization.展开更多
AIM To clarify clinicopathological features of ductal carcinoma in situ(DCIS)visualized on[F-18]fluorodeoxyglucosepositron emission tomography/computed tomography(FDG-PET/CT).METHODS This study retrospectively reviewe...AIM To clarify clinicopathological features of ductal carcinoma in situ(DCIS)visualized on[F-18]fluorodeoxyglucosepositron emission tomography/computed tomography(FDG-PET/CT).METHODS This study retrospectively reviewed 52 consecutive tumors in 50 patients with pathologically proven pure DCIS who underwent[F-18]FDG-PET/CT before surgery.[F-18]FDG-PET/CT was performed after biopsy in all patients.The mean interval from biopsy to[F-18]FDGPET/CT was 29.2 d.[F-18]FDG uptake by visual analysis and maximum standardized uptake value(SUVmax)was compared with clinicopathological characteristics.RESULTS[F-18]FDG uptake was visualized in 28 lesions(53.8%)and the mean and standard deviation of SUVmax was 1.63 and 0.90.On univariate analysis,visual analysis and the SUVmax were associated with symptomatic presentation(P=0.012 and 0.002,respectively),palpability(P=0.030 and 0.024,respectively),use of core-needle biopsy(CNB)(P=0.023 and 0.012,respectively),ultrasound-guided biopsy(P=0.040 and 0.006,respectively),enhancing lesion≥20 mm on magnetic resonance imaging(MRI)(P=0.001 and 0.010,respectively),tumor size≥20 mm on histopathology(P=0.002 and 0.008,respectively).However,[F-18]FDG uptake parameters were not significantly associated with age,presence of calcification on mammography,mass formation on MRI,presence of comedo necrosis,hormone status(estrogen receptor,progesterone receptor and human epidermal growth factor receptor-2),and nuclear grade.The factors significantly associated with visual analysis and SUVmax were symptomatic presentation(P=0.019 and 0.001,respectively),use of CNB(P=0.001 and 0.031,respectively),and enhancing lesion≥20 mm on MRI(P=0.001 and 0.049,respectively)on multivariate analysis.CONCLUSION Although DCIS of breast is generally non-avid tumor,symptomatic and large tumors(≥20 mm)tend to be visualized on[F-18]FDG-PET/CT.展开更多
BACKGROUND Mucormycosis is a very rare fungal infection,and its prognosis is poor.Most common sites of infection are the sinuses,lung,or skin,and gastric involvement is uncommon.The standard antifungal therapy is the ...BACKGROUND Mucormycosis is a very rare fungal infection,and its prognosis is poor.Most common sites of infection are the sinuses,lung,or skin,and gastric involvement is uncommon.The standard antifungal therapy is the treatment of choice for gastric mucormycosis.However,the symptoms of gastric mucormycosis are varied and the early diagnosis is not easy.CASE SUMMARY I report a 53-year-old alcoholic man,who was admitted due to epigastric pain.The upper gastrointestinal endoscopy revealed a huge ulcer lesion in the stomach,which was suspected to be gastric cancer.F-18 fluorodeoxyglucose positron emission tomography/computed tomography(F-18 FDG PET/CT)showed diffusely intense FDG uptake at the ulcer lesion of the stomach,and several enlarged hypermetabolic lymph nodes were noted at the left gastric chain.Although,endoscopy and F-18 FDG PET/CT findings suggested advanced gastric cancer with regional lymph node metastases,there was no cancer cells in the biopsy results and multiple fungal hyphae were noted in the periodic acid-Schiff stained image.CONCLUSION He was diagnosed with gastric mucormycosis and successfully underwent amphotericin B and posaconazole treatment.展开更多
文摘AIM To evaluate the value of pre-treatment 18F-FDG PET/CT in patients with HCC following liver radioembolization.METHODS We identified 34 patients with HCC who underwent an FDG PET/CT scan prior to hepatic radioembolization at our institution between 2009 and 2013. Patients wereseen in clinic one month after radioembolization and then at 2-3 mo intervals. We assessed the influence of FDG tumor uptake on outcomes including local liver control(LLC), distant liver control(DLC), time to distant metastases(DM), progression free survival(PFS) and overall survival(OS).RESULTS The majority of patients were males(n = 25, 74%), and had Child Pugh Class A(n = 31, 91%), with a median age of 68 years(46-84 years). FDG-avid disease was found in 19(56%) patients with SUVmax ranging from 3 to 20. Female patients were more likely to have an FDG-avid HCC(P = 0.02). Median follow up of patients following radioembolization was 12 months(1.2-62.8 mo). FDG-avid disease was associated with a decreased 1 year LLC, DLC, DM and PFS(P < 0.05). Using multivariate analysis, FDG avidity predicted for LLC, DLC, and PFS(all P < 0.05).CONCLUSION In this retrospective study, pre-treatment HCC FDGavidity was found to be associated with worse LLC, DLC, and PFS following radioembolization. Larger studies are needed to validate our initial findings to assess the role of F-18-FDG PET/CT scans as biomarker for patients with HCC following radioembolization.
文摘AIM To clarify clinicopathological features of ductal carcinoma in situ(DCIS)visualized on[F-18]fluorodeoxyglucosepositron emission tomography/computed tomography(FDG-PET/CT).METHODS This study retrospectively reviewed 52 consecutive tumors in 50 patients with pathologically proven pure DCIS who underwent[F-18]FDG-PET/CT before surgery.[F-18]FDG-PET/CT was performed after biopsy in all patients.The mean interval from biopsy to[F-18]FDGPET/CT was 29.2 d.[F-18]FDG uptake by visual analysis and maximum standardized uptake value(SUVmax)was compared with clinicopathological characteristics.RESULTS[F-18]FDG uptake was visualized in 28 lesions(53.8%)and the mean and standard deviation of SUVmax was 1.63 and 0.90.On univariate analysis,visual analysis and the SUVmax were associated with symptomatic presentation(P=0.012 and 0.002,respectively),palpability(P=0.030 and 0.024,respectively),use of core-needle biopsy(CNB)(P=0.023 and 0.012,respectively),ultrasound-guided biopsy(P=0.040 and 0.006,respectively),enhancing lesion≥20 mm on magnetic resonance imaging(MRI)(P=0.001 and 0.010,respectively),tumor size≥20 mm on histopathology(P=0.002 and 0.008,respectively).However,[F-18]FDG uptake parameters were not significantly associated with age,presence of calcification on mammography,mass formation on MRI,presence of comedo necrosis,hormone status(estrogen receptor,progesterone receptor and human epidermal growth factor receptor-2),and nuclear grade.The factors significantly associated with visual analysis and SUVmax were symptomatic presentation(P=0.019 and 0.001,respectively),use of CNB(P=0.001 and 0.031,respectively),and enhancing lesion≥20 mm on MRI(P=0.001 and 0.049,respectively)on multivariate analysis.CONCLUSION Although DCIS of breast is generally non-avid tumor,symptomatic and large tumors(≥20 mm)tend to be visualized on[F-18]FDG-PET/CT.
基金Supported by National Research Foundation of Korea(NRF)grant funded by the Korea government(MSIP),No.2017R1C1B5076640
文摘BACKGROUND Mucormycosis is a very rare fungal infection,and its prognosis is poor.Most common sites of infection are the sinuses,lung,or skin,and gastric involvement is uncommon.The standard antifungal therapy is the treatment of choice for gastric mucormycosis.However,the symptoms of gastric mucormycosis are varied and the early diagnosis is not easy.CASE SUMMARY I report a 53-year-old alcoholic man,who was admitted due to epigastric pain.The upper gastrointestinal endoscopy revealed a huge ulcer lesion in the stomach,which was suspected to be gastric cancer.F-18 fluorodeoxyglucose positron emission tomography/computed tomography(F-18 FDG PET/CT)showed diffusely intense FDG uptake at the ulcer lesion of the stomach,and several enlarged hypermetabolic lymph nodes were noted at the left gastric chain.Although,endoscopy and F-18 FDG PET/CT findings suggested advanced gastric cancer with regional lymph node metastases,there was no cancer cells in the biopsy results and multiple fungal hyphae were noted in the periodic acid-Schiff stained image.CONCLUSION He was diagnosed with gastric mucormycosis and successfully underwent amphotericin B and posaconazole treatment.
