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The PET/CT was performed without complications. Evaluation of bile excretion over time was possible. 68Ga-TAoS-DAZA PET/CT may be an option for dynamic imaging of the excretory hepatic function to visualize the biliary tree and to rule out cholestasis.
The Toyota Production System (TPS) revolutionized automotive manufacturing and then spread more widely to other manufacturing and service industries, including healthcare. Many of the concepts in the TPS originated from ideas from the quality and production pioneers in the United States. Japanese experts built on these concepts and added many of their own to fashion them together into a comprehensive system. One of the key concepts in the TPS is to reduce waste without sacrificing quality.
The Toyota Production System (TPS) revolutionized automotive manufacturing and then spread more widely to other manufacturing and service industries, including healthcare. Many of the concepts in the TPS originated from ideas from the quality and production pioneers in the United States. Japanese experts built on these concepts and added many of their own to fashion them together into a comprehensive system. One of the key concepts in the TPS is to reduce waste without sacrificing quality.
A 48-year-old man presented with a painless enlarging mass on his right thigh for 2 months. He had a history of neurofibromatosis. MRI showed a mass in his right thigh. Malignant tumor was suspected. He was enrolled in the clinical trial of 68Ga-FAPI in solid tumors. Multiple increased FAPI uptake was observed in the right thigh mass, lung, and mediastinal lymph nodes, which were confirmed being pleomorphic rhabdomyosarcoma by biopsy. In addition, widespread metabolic activity was also observed in his cutaneous fibroma nodules. This case showed that benign neurofibromatosis can cause FAPI uptake.
A 48-year-old man presented with a painless enlarging mass on his right thigh for 2 months. He had a history of neurofibromatosis. MRI showed a mass in his right thigh. Malignant tumor was suspected. He was enrolled in the clinical trial of 68Ga-FAPI in solid tumors. Multiple increased FAPI uptake was observed in the right thigh mass, lung, and mediastinal lymph nodes, which were confirmed being pleomorphic rhabdomyosarcoma by biopsy. In addition, widespread metabolic activity was also observed in his cutaneous fibroma nodules. This case showed that benign neurofibromatosis can cause FAPI uptake.
This article aims to explore the prognostic role of 18F-FDG PET/CT metabolic parameters in stage I lung adenocarcinoma patients.
One hundred eighty pathological stage I lung adenocarcinoma patients were retrospectively reviewed. Semiquantitative analysis of FDG tumor uptake was performed with TrueD software on the Siemens Leonardo workstation. SUVmean and MTV were calculated using SUV threshold of 41% of SUVmax; the total lesion glycolysis (TLG) was calculated as the product of SUVmean and MTV. Correlation was evaluated using Spearman correlation coefficient. Maximally selected rank statistics was performed to detect the optimal cutoff used for dichotomizing each PET parameter (6.5 for SUVmean, 9.6 for SUVmax, and 19.1 for TLG).
Our main finding was the significant correlation between 18F-FDG PET/CT parameters (SUVmean, SUVmax, and TLG) and disease-free survival in pathologic stage I non-small cell lung cancer. SUVmean has the greatest accuracy in recurrence prediction (integrated area under the curve, 0.803; 95% confidence interval, 0.689-0.918). We run the maximally selected rank statistics to provide the classification of observations in 2 groups by a continuous predictor parameter; the free from recurrence rate was significantly greater in patients with SUVmean ≤6.5, SUVmax ≤9.6, and TLG ≤19.1.
Our research supports the hypothesis that SUVmean, SUVmax, and TLG are well correlated with free from recurrence rate in stage I adenocarcinoma patients, subjected to pulmonary lobectomy. Our findings also indicate these markers as promising prognostic indicators.
Our research supports the hypothesis that SUVmean, SUVmax, and TLG are well correlated with free from recurrence rate in stage I adenocarcinoma patients, subjected to pulmonary lobectomy. Our findings also indicate these markers as promising prognostic indicators.
We present a case of a 68-year-old woman undergoing 18F-choline PET/CT due to a history of hepatocellular cancer treated with multimodal therapies and with a rapid increase in α-fetoprotein. 18F-Choline PET/CT showed multiple uptakes in the skeletal muscles compatible with the recurrence of disease. The interpretation of 18F-choline PET/CT in this cancer should be careful and discussed in a multidisciplinary team.
We present a case of a 68-year-old woman undergoing 18F-choline PET/CT due to a history of hepatocellular cancer treated with multimodal therapies and with a rapid increase in α-fetoprotein. 18F-Choline PET/CT showed multiple uptakes in the skeletal muscles compatible with the recurrence of disease. The interpretation of 18F-choline PET/CT in this cancer should be careful and discussed in a multidisciplinary team.
A 71-year-old man underwent 68Ga-PSMA PET/CT for evaluation of a late biochemical recurrence after radical prostatectomy. An intense PSMA uptake was identified in spleen. Additional evaluation with a contrast-enhanced MRI showed a splenic lesion consistent with splenic hemangioma.
A 71-year-old man underwent 68Ga-PSMA PET/CT for evaluation of a late biochemical recurrence after radical prostatectomy. An intense PSMA uptake was identified in spleen. Additional evaluation with a contrast-enhanced MRI showed a splenic lesion consistent with splenic hemangioma.
We report the case of 69-year-old man referred for a stage IV pulmonary adenocarcinoma and presenting a decrease in visual acuity. An 18F-FDG PET/CT showed an intense and heterogeneous uptake of a mass in the sellar region. An MRI showed a pituitary macroadenoma associated with a large cyst on the left side, with necrosis zones and fluid level, compressing the optic chiasma. Endocrine testing showed a panhypopituitarism, and pathology confirmed a pituitary apoplexy in a gonadotropin-secreting macroadenoma. No malignant cells were detected. Molecular imaging could have an important role in the detection and characterization of pituitary tumors.
We report the case of 69-year-old man referred for a stage IV pulmonary adenocarcinoma and presenting a decrease in visual acuity. An 18F-FDG PET/CT showed an intense and heterogeneous uptake of a mass in the sellar region. An MRI showed a pituitary macroadenoma associated with a large cyst on the left side, with necrosis zones and fluid level, compressing the optic chiasma. Endocrine testing showed a panhypopituitarism, and pathology confirmed a pituitary apoplexy in a gonadotropin-secreting macroadenoma. No malignant cells were detected. Molecular imaging could have an important role in the detection and characterization of pituitary tumors.
18F-FDG PET/CT has been found useful for the detection of the source of infection/inflammation in the body. Platelet-rich plasma is a new treatment modality in which plasma is injected subdermally or intradermally for potential hair regrowth into the scalp. We report a case of 43-year-old woman with right breast cancer who underwent surgery, chemotherapy, and radiotherapy 2 years ago and is currently on hormonal therapy. 18F-FDG PET/CT demonstrate incidental findings of increased FDG avidity in the scalp after platelet-rich plasma therapy.
18F-FDG PET/CT has been found useful for the detection of the source of infection/inflammation in the body. Platelet-rich plasma is a new treatment modality in which plasma is injected subdermally or intradermally for potential hair regrowth into the scalp. We report a case of 43-year-old woman with right breast cancer who underwent surgery, chemotherapy, and radiotherapy 2 years ago and is currently on hormonal therapy. 18F-FDG PET/CT demonstrate incidental findings of increased FDG avidity in the scalp after platelet-rich plasma therapy.
Diffuse cutaneous angiosarcomas are rare. Herein, we reported FDG PET/CT findings of cutaneous angiosarcoma in a 59-year-old man. FDG PET/CT imaging was performed for staging, showing diffuse intense FDG uptake with an SUVmax of 19 in the scalp and face. Chemotherapy was recommended for this patient because surgery and radiotherapy were not appropriate due to the widespread skin involvement. Our case suggests that cutaneous angiosarcoma can present with diffuse skin involvement, and FDG PET/CT plays an important role in determining the treatment plan to avoid unnecessary surgery and radiotherapy.
Diffuse cutaneous angiosarcomas are rare. Herein, we reported FDG PET/CT findings of cutaneous angiosarcoma in a 59-year-old man. FDG PET/CT imaging was performed for staging, showing diffuse intense FDG uptake with an SUVmax of 19 in the scalp and face. Chemotherapy was recommended for this patient because surgery and radiotherapy were not appropriate due to the widespread skin involvement. Our case suggests that cutaneous angiosarcoma can present with diffuse skin involvement, and FDG PET/CT plays an important role in determining the treatment plan to avoid unnecessary surgery and radiotherapy.
We present a pediatric case with T-cell lymphoblastic leukemia and persistent chylothorax who was referred to lymphoscintigraphy to identify the site of leakage. Planar lymphoscintigraphy with SPECT/CT revealed hot spots at the left jugulovenous angle and the confluens of the vena brachiocephalica to vena cava, which were compatible with the sites of leakage. Hybrid imaging with SPECT/CT technique have great impact on accurate detection of the defects in the lymphatic system in patients with chylothorax.
We present a pediatric case with T-cell lymphoblastic leukemia and persistent chylothorax who was referred to lymphoscintigraphy to identify the site of leakage. Planar lymphoscintigraphy with SPECT/CT revealed hot spots at the left jugulovenous angle and the confluens of the vena brachiocephalica to vena cava, which were compatible with the sites of leakage. selleck chemical Hybrid imaging with SPECT/CT technique have great impact on accurate detection of the defects in the lymphatic system in patients with chylothorax.
Central pontine myelinolysis (CPM) is demyelinating condition of pons caused by osmotic stress due to rapid correction of hyponatremia. We present a case where CPM was an incidental finding on FDG PET/CT scan. To the best of our knowledge, only 3 case reports have been published till date describing CPM on 18F-FDG PET/CT scans.
Central pontine myelinolysis (CPM) is demyelinating condition of pons caused by osmotic stress due to rapid correction of hyponatremia. We present a case where CPM was an incidental finding on FDG PET/CT scan. To the best of our knowledge, only 3 case reports have been published till date describing CPM on 18F-FDG PET/CT scans.
We created our first national clinical protocol of 177Lu-CXCR4 therapy for patient who have failed to respond to current therapy options. We also calculated the kidney, liver, and tumor dosimetry. The kidney's mean absorbed dose was calculated to be 0.45 Gy/GBq, the calculated radiation absorbed dose of the liver was 0.63 Gy/GBq, and the radiation absorbed doses of the tumors vary between 9.2 and 82 Gy/GBq. 177Lu-CXCR4 therapy produced a promising clinical response in our patient in acceptable radiation dose limits as a treatment option in heavily pretreated patients with advanced multiple myeloma.
We created our first national clinical protocol of 177Lu-CXCR4 therapy for patient who have failed to respond to current therapy options. We also calculated the kidney, liver, and tumor dosimetry. The kidney's mean absorbed dose was calculated to be 0.45 Gy/GBq, the calculated radiation absorbed dose of the liver was 0.63 Gy/GBq, and the radiation absorbed doses of the tumors vary between 9.2 and 82 Gy/GBq. 177Lu-CXCR4 therapy produced a promising clinical response in our patient in acceptable radiation dose limits as a treatment option in heavily pretreated patients with advanced multiple myeloma.
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