A patient has a history of treated prostate cancer, Gleason 9, and underwent a Ga-68 PSMA scan for a
rising PSA level, 14.3ng/ml. Recent bone scan and MR prostate were negative for disease. Scan showed a
PSMA-avid wel-circumscribed rounded lesion in lung with PSMA-avid mediastinal nodes, SUV range
11.6-12.6. Based upon these images, which is the LEAST likely diagnosis - lung metastases from adenocarcinoma of the prostate, primary lung cancer, lung metastases with neuroendocrine transdifferentiation, or active tuberculosis?
Answer to following in a few weeks.
Summer 2019 ACNM Scanner Case