Shoulder Mass on 38-Year-Old Patient

A 38-year-old man presents with a right shoulder mass, and a biopsy is performed. What is your diagnosis?

A 38-year-old man presents with a right shoulder mass, and a biopsy is performed.

Based on the image shown, what is your diagnosis?

A. Adenocarcinoma

B. Carcinoid tumor

C. Malignant granular cell tumor

D. Squamous cell carcinoma

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