Browsing by Author "Reyhan, M."
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Item 68Ga-DOTATATE PET/CT Imaging in Medullary Thyroid Carcinoma Patients with Raised Serum Calcitonin(2018) Torun, N.; Erhamamci, S.; Reyhan, M.; Yapar, A. F.; Aktas, A.; 0000-0002-5597-676X; 0000-0001-8550-3368; 0000-0003-1715-4180; 0000-0003-0149-2265; AAE-2718-2021; AAJ-5242-2021; AAI-8973-2021; AAI-8772-2021Item Automatic Prediction of Metastasis-Free Survival (MFS) Using Prostate-Specific Membrane Antigen (PSMA) PET for Oligometastatic Castration-Sensitive Prostate Cancer (omCSPC)(2023) Cao, Y.; Sutera, P.; Mendes, W.; Yousefi, B.; Hrinivich, W. T.; Deek, M. P.; Phillips, R.; Song, D.; Kiess, A. P.; Guler, O. C.; Torun, N.; Reyhan, M.; Tran, P. T.; Ona, H. C.; Rent, L.; 37784389Item A Case of Brain and Leptomeningeal Metastases from Urothelial Carcinoma of The Bladder(2014) Erhamamci, S.; Reyhan, M.; Altinkaya, N.; https://orcid.org/0000-0001-8550-3368; https://orcid.org/0000-0003-1348-8167; 25043771; AAJ-5242-2021; AAM-5169-2021Brain metastases are unusual from urethelial carcinoma of bladder and particularly the occurrence of leptomeningeal metastases is extremely rare, with few cases described in the literature. We present a case of a 45-year-old man with a rare brain metastases as the first metastatic manifestation secondary to urethelial carcinoma of bladder followed by leptomeningeal metastases without any other organ involvement. Eleven months after the diagnosis of high-grade urethelial carcinoma of bladder (T2N0M0), the patient was detected having brain metastases by MRI. FDG PET/CT images for the metastatic evaluation showed no abnormal FDG uptake elsewhere in the body except the brain. Histopathology examination from brain lesion demonstrated the cerebral lesion to be a metastatic urothelial carcinoma. Two months later, the patient was diagnosed to have leptomeningeal metastases by MRI. Our patient's condition gradually worsened, and he died 3 months after the diagnosis of leptomeningeal metastases. (C) 2013 Elsevier Espana, S.L.U. and SEMNIM. All rights reserved.Item The Clinic Role of FDG-PET/CT and Ga68-DOTATATE PET/CT in Differentiated Thyroid Cancer Patients with Negative Iodine-131 Whole Body Scan and Elevated Serum Thyroglobulin Level(2018) Torun, N.; Erhamamci, S.; Reyhan, M.; Nursal, G. N.; Yapar, A. F.; 0000-0002-5597-676X; 0000-0002-5302-4386; 0000-0003-1715-4180; AAE-2718-2021; R-3735-2016; AAI-8973-2021Item Evaluation of Cyclic Direct Radionuclide Cystography Findings with DMSA Scintigraphy Results in Children with A Prior Diagnosis of Vesicoureteral Reflux(2018) Torun, N.; Aktas, A.; Reyhan, M.; Yapar, A. F.; Nursal, G. N.; https://orcid.org/0000-0002-5597-676X; https://orcid.org/0000-0001-8550-3368; https://orcid.org/0000-0003-1715-4180; https://orcid.org/0000-0002-5302-4386; AAE-2718-2021; AAJ-5242-2021; AAI-8973-2021; R-3735-2016Item FDG PET/CT Imaging in Prostate Adenocarcinoma Presenting as Isolated Brain Metastases of Unknown Origin(2015) Erhamamci, S.; Reyhan, M.; Alkan, O.; 0000-0001-8550-3368; 0000-0001-7526-3460; 25052407; AAJ-5242-2021; AAM-4169-2021Item Incidental Diagnosis of Tumor Thrombosis on FDG PET/CT Imaging(2015) Erhamamci, S.; Reyhan, M.; Nursal, G. N.; Torun, N.; Yapar, A. F.; 0000-0003-1715-4180; 0000-0002-5597-676X; 0000-0002-5302-4386; 0000-0001-8550-3368; 26025479; AAI-8973-2021; AAE-2718-2021; R-3735-2016; AAJ-5242-2021Objective: Clinical data are presented on patients with tumor thrombosis (TT) incidentally detected on FDG PET/CT imaging, as well as determining its prevalence and metabolic characteristics. Materials and methods: Out of 12,500 consecutive PET/CT examinations of patients with malignancy, the PET/CT images of 15 patients with TT as an incidental finding were retrospectively investigated. A visual and semiquantitative analyses was performed on the PET/CT scans. An evaluation was made of the pattern of FDG uptake in the involved vessel as linear or focal via visual analyses. For the semiquantitative analyses, the metabolic activity was measured using SUVmax by drawing the region of interest at the site of the thrombosis and tumor (if any). Results: The prevalence of occult TT was 0.12%. A total of 15 patients had various malignancies including renal (1 patient), liver (4), pancreas (2), stomach (1), colon (1), non-Hodgkin lymphoma (1), leiomyosarcoma (1), endometrial (1), ovarian (1), malign melanoma (1) and parotid (1). Nineteen vessels with TT were identified in 15 patients; three patients had more than one vessel. Various vessels were affected; the most common was the inferior vena cava (n = 7) followed by the portal (n = 5), renal (n = 3), splenic (n = 1), jugular (n = 1), common iliac (n = 1) and ovarian vein (n = 1). The FDG uptake pattern was linear in 12 and focal in 3 patients. The mean SUVmax values in the TT and primary tumors were 8.40 +/- 4.56 and 13.77 +/- 6.80, respectively. Conclusion: occult TT from various malignancies and locations was found incidentally in 0.12% of patients. Interesting cases with malign melanoma and parotid carcinoma and with TT in ovarian vein were first described by FDG PET/CT. Based on the linear FDG uptake pattern and high SUVmax value, PET/CT may accurately detect occult TT, help with the assessment of treatment response, contribute to correct tumor staging, and provide additional information on the survival rates of oncology patients. (C) 2015 Elsevier Espana, S.L.U. and SEMNIM. All rights reserved.Item Interpreting Clinical Parameters and Nomograms for Predicting Lymph Node Metastasis Detected with 68 Ga-PSMAPET/CT in prostate cancer patients(2020) Onal, C.; Ozyigit, G.; Oymak, E.; Guler, O.C.; Hurmuz, P.; Tilki, B.; Torun, N.; Tuncel, M.; Reyhan, M.; Caglar, M.; Yapar, A.F.; Akyol, F.; 0000-0001-8550-3368; 0000-0002-2742-9021; 0000-0003-1715-4180; 0000-0001-6908-3412; 0000-0002-5597-676X; AAJ-5242-2021; D-5195-2014; AAI-8973-2021; AAC-5654-2020; AAE-2718-2021Item Lack of Cerebrospinal Fluid Circulation Due to Post Puncture Epidural Hemorrhage: An Interesting Case of Radionuclide Cisternography(2014) Reyhan, M.; Alkan, O.; https://orcid.org/0000-0001-8550-3368; https://orcid.org/0000-0001-7526-3460; 24388590; AAJ-5242-2021; AAM-4169-2021Item Post-Traumatic Psoas Abscess Diagnosed by 18F FDG PET/CT(2014) Reyhan, M.; https://orcid.org/0000-0001-8550-3368; 24405690; AAJ-5242-2021Item Prostate-Specific Membrane Antigen PET Response Associates with Metastasis-Free Survival Following Stereotactic Ablative Radiation Therapy in Oligometastatic Castration-Sensitive Prostate Cancer(2022) Sutera, P.; Deek, M. P.; Guler, O. C.; Hurmuz, P.; Reyhan, M.; Rowe, S.; Hrinivich, W. T.; Ren, L.; Song, D.; Kiess, A. P.; Oymak, E.; Pienta, K.; Pomper, M. G.; Feng, F. Y.; Ozyigit, G.; Tran, P. T.; Phillips, R.; Onal, C.Item Response evaluation with 68GA-PSMA-PET/CT in prostate cancer patients treated with radiotherapy(2022) Onal, C.; Guler, O.; Oymak, E.; Torun, N.; Reyhan, M.Item The Role of (68)ga-PSMA-PET/CT in Pelvic FIELD Delineation in Prostate Cancer Patients with Pelvic Lymph Node Metastasis(2019) Onal, C.; Hurmuz, P.; Torun, N.; Tuncel, M.; Guler, O. C.; Reyhan, M.; Caglar, M.; Ozyigit, G.; 0000-0001-6908-3412; AAC-5654-2020Item The Significance Of Nomograms For Predicting Node Metastasis in 68ga-PSMA-PET/CT in Prostate Cancer(2020) Onal, C.; Guler, O. C.; Torun, N.; Reyhan, M.; HOC-5611-2023Item Simultaneous Occurrence of Follicular Thyroid Carcinoma and Papillary Thyroid Carcinoma(2014) Erhamamci, S.; Reyhan, M.; Nursal, G. N.; Torun, N.; Yapar, A. F.; https://orcid.org/0000-0001-8550-3368; https://orcid.org/0000-0002-5302-4386; https://orcid.org/0000-0002-5597-676X; AAJ-5242-2021; R-3735-2016; AAE-2718-2021Item Stage IV Neuroblastoma: Single Center Experience: Treatment Consolidation(2019) Yazici, N.; Sarialioglu, F.; Temiz, A.; Cem, H. Onal; Reyhan, M.; Demir, S.; Hasbay, B.; Aktekin, E.; Erbay, A.Item Treatment Outcomes of Patients with Cervical Cancer with Complete Metabolic Responses After Definitive CHRT(2014) Onal, H. C.; Guler, O. C.; Reyhan, M.; Yapar, A. F.