Cancer of Unknown Origin

A 71 yrs old male was admitted with increasing shortness of breath and was found to have a large left side pleural effusion. Thoracentesis revealed an exudate with many RBCs and the cytology was negative. CT scan showed a large left pleural effusion, circumferential pleural thickening, and a posterior mediastinal mass. EUS guided FNA of the mediastinal mass revealed adenocarcinoma.

Whole body PET-CT showed: FDG avid left lung pleural thickening, hypermetabolic right paratracheal lymphadenopathy (SUV 5.1), and focal hypermetabolism in the thickened lower esophagus (SUV 15.7). EGD revealed esophageal adenocarcinoma. Incidentally seen on PET-CT is an intensely FDG avid (SUV 36.7) fluid density mass in the left scrotum, from inguinal herniation of the urinary bladder.

Adenocarcinoma of Unknown Origin

Adenocarcinoma of Unknown Origin

This case was compiled by Dr. Aaron Baxter, BCM

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Posted by:
Nuclear MD

Posted on:
June 13th, 2013

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