RESUMEN
ABSTRACT: An osteoid osteoma (OO) is a benign bone neoplasm, characterized by significant nocturnal pain that usually responds to nonsteroidal anti-inflammatory drugs. It occurs most commonly in the lower extremities and vertebrae. Here, we present a case of carcinoma prostate, who was referred to our department for 68 Ga-PSMA PET/CT scan, and we incidentally found out PSMA-avid OO involving frontal bone of skull, which is a rare finding. To the best of our knowledge, this is the second case in which high PSMA uptake is found in the OO, suggesting a possible PSMA expression related to osteoblastic activity.
Asunto(s)
Neoplasias Óseas , Osteoma Osteoide , Neoplasias de la Próstata , Masculino , Humanos , Tomografía Computarizada por Tomografía de Emisión de Positrones , Osteoma Osteoide/diagnóstico por imagen , Radioisótopos de Galio , Neoplasias de la Próstata/patología , Neoplasias Óseas/diagnóstico por imagen , Neoplasias Óseas/metabolismo , Cráneo/metabolismo , Ácido Edético/metabolismoRESUMEN
ABSTRACT: Renal cell carcinoma (RCC) is an aggressive carcinoma with hematogenous spread commonly to lungs, liver, and bones. However, few cases of isolated urinary bladder metastasis have also been reported. Here we report a case of 63-year-old man, a known case of left RCC (clear cell type), post left nephrectomy, who was on regular clinicoradiological follow-up. He presented with complaints of painless hematuria; on further evaluation, 18F-FDG PET/CT revealed few FDG-avid intramural nodular lesions along the walls of urinary bladder. He underwent TURBT, and the tissue was sent for histopathological examination, which was diagnostic of metastatic RCC.