Editor: Mahmut Akgul (firstname.lastname@example.org)
Contributors: Daniel Athanazio, Paulo Roberto Fontes Athanazio
A teenager noticed a nodule in the dorsal side of the penis two years before this presentation. The nodule was surveilled clinically. In this period, no skin lesions were noted. In the last months, the lesion rapidly grew causing ulceration in dorsal skin and invading corpora cavernosa and corpus spongiosum (as evaluated by imaging studies).
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1. What is the correct diagnosis?
a) Penile osteosarcoma
b) Sarcomatoid squamous cell carcinoma of the penis
c) Giant cell tumor of soft tissue
d) Melanoma with osteosarcomatous differentiation
e) Paraffinoma/Sclerosing lipogranuloma
f) Sarcomatoid urothelial carcinoma of the urethra