Carcinoma vesicular de células en anillo de sello: diseminación poco frecuente: Reporte de un caso con tomografía computada por emisión de positrones con fluor 18-deoxiglucosa

Pamela Humeres ^[1] ; Patricio González ^[1] ; Javiera González ^[1] ; Elizabeth Prado ^[1] ; Enrique Hiplan ^[1]
1. [1] Clinica Santa Maria
  
  Clinica Santa Maria
  
  Santiago, Chile
Localización: Revista Médica de Chile, ISSN-e 0034-9887, Vol. 145, Nº. 4, 2017, págs. 527-532
Idioma: español
Títulos paralelos:
- Bone metastases of a gallbladder carcinoma detected by positron emission tomography/computed tomography: Case report
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Resumen
- Signet ring gallbladder carcinoma is a rare aggressive variant of mucinous adenocarcinoma with poor prognosis. Positron emission tomography/computed tomography (PET/CT) with Fluor18 deoxyglucose (F18-FDG) is a useful tool in the staging of gallbladder cancer. We report a 68 years old man with a surgically resected acute cholecystitis, whose biopsy was positive for signet ring cell gallbladder carcinoma. During surgery, locoregional lymph nodes, liver or peritoneal involvement were not detected. A PET/CT was performed for staging, finding multiple hypermetabolic lytic bone lesions. Percutaneous biopsy of a pelvis bone lesion, confirmed a metastasis of the tumor. In this case, the staging with PET/CT allowed the diagnosis of unsuspected bone metastases and was a useful tool for deciding the best site of biopsy for histologic confirmation.