Prostate specific membrane antigen PET avidity in a granular cell tumour of the left supraspinatus muscle: a case report
Michael T Hsieh, Farokh Fargah, Abdul Rahim Mohd Tahir, Ngo Tue Le, Thomas P Shakespeare
TL;DR
A rare tumor in a man's shoulder showed high uptake in a prostate cancer imaging test, marking the first known case of this kind.
Contribution
This is the first reported case of PSMA-PET avidity in a granular cell tumor.
Findings
A PSMA-avid lesion in the left supraspinatus muscle was identified in a 60-year-old male.
The lesion was confirmed as a granular cell tumor through biopsy.
Abstract
Granular cell tumour is a rare, mostly benign, soft tissue, neuroectodermal tumour, most commonly seen in the skin and peripheral soft tissue. There are no publications to date of PSMA-PET avidity in a granular cell tumour. In this 60 year old male, staging PSMA-PET for a localized intermediate risk prostate cancer incidentally identified a PSMA-avid left supraspinatus lesion, which was subsequently biopsy-proven as a granular cell tumour. We present the first case of PSMA-avid granular cell tumour and add to the growing literature documenting PSMA-PET avidity in benign and malignant lesions apart from prostate cancer.
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Taxonomy
TopicsTumors and Oncological Cases · Soft tissue tumor case studies