Michael T Hsieh, Farokh Fargah, Abdul Rahim Mohd Tahir, Ngo Tue Le, Thomas P Shakespeare
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Prostate specific membrane antigen PET avidity in a granular cell tumour of the left supraspinatus muscle: a case report.
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.