Late Ga PSMA-positive Pancreatic Metastasis From Renal Cell Carcinoma in a Patient with Metastatic Prostate Cancer: A Mission Impossible.

We present the case of a patient with newly diagnosed high-risk prostate cancer. The patient underwent nephrectomy for renal cell carcinoma (RCC) in 2009. The prostate-specific membrane antigen (PSMA) scan revealed a primary tumor with seminal vessel involvement, PSMA-positive regional lymph nodes, several nodular lung lesions with mild PSMA uptake, PSMA-positive mediastinal lymph nodes, and a PSMA-positive mass in the pancreatic head.

Localized retroperitoneal Rosai-Dorfman-Destombes disease as a cause of fever of unknown origin in adults. Case report and review of the literature.

• The localized abdominal RDD could be a possible cause of FUO. • RDD should be considered in the differential diagnosis of localized retroperitoneal mass and FUO. • FDG-PET/CT is a useful diagnostic tool for initial diagnosis, staging, and follow-up.

Synchronous papillary thyroid cancer and non-Hodgkin lymphoma: Case report.

Rationale: Differentiated thyroid cancer is the most common endocrine malignancy with concomitant hematological malignancy in 7%.

Patient Concerns: We present a case of a synchronous papillary thyroid cancer and a follicular variant of non-Hodgkin lymphoma and discuss the possible diagnostic and treatment dilemmas.

Diagnosis: A 48-year-old female was reffered to our hospital with diagnosis "thyroid cancer".

18F-FDG PET/CT in the diagnosis of an extranodal relapse of diffuse large B-cell lymphoma (DLBCL): a clinical case with a literature review.

Extranodal lymphoma, secondary to or accompanying nodal disease is uncommon, but not unusual finding. 18-Fluorodeoxyglucose positron emission tomography (18F-FDG PET/CT) imaging has an essential role in the staging of lymphoma, in treatment response monitoring, and in detection of recurrence. We present a case of a 52-year-old man with generalized diffuse large B-cell lymphoma (DLBCL) with multiple extranodal sites involvement detected by 18F-FDG PET/CT.