Incidental Finding of Testicular Seminoma by 18F-Choline PET/CT in a Prostate Cancer Patient

Abstract

An 80-year-old man with a history of prostate cancer, treated with radical prostatectomy and bilateral obturator nodal dissection, underwent an 18 F-choline PET/CT because of biochemical recurrence. The scan revealed an intense focal uptake in the right testicle. A subsequent orchifunicumlectomy demonstrated the presence of a classic seminoma. At present, 18 F-FDG PET/ CT is useful for initial staging of testicular cancer and determining the viability of residual masses >3 cm after completion of treatment, especially in patients with seminoma.

Coexistence of Langerhans Cell Histiocytosis and Ganglioneuroblastoma Revealed by 18F-FDG PET/CT in a Pediatric Patient

“…However, in childhood LCH, leukemias and myeloproliferative disorders (50.0%) prevailed over solid tumors (37.1%) and lymphoma (12.9%) 5 . Coexistence of different diseases in adults is not uncommon, which can be frequently detected by different nuclear medicine imaging studies 6–11 . As both LCH and GNB are rare diseases in pediatric patients, reports of synchronous occurrence of LCH and NB have been very rare 3,12 .…”