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Dermatology Online Journal

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Cutaneous metastasis of a transitional cell carcinoma


Cutaneous metastases are infrequently encountered in dermatology. We describe a rare case of a urolethial carcinoma metastatic to the skin in an elderly female. The metastasis expanded rapidly and was thought to possibly be infectious on her initial evaluation by her primary team. We were called in as consultants and biopsied this mass to confirm our concern for metastatic disease. In this case there was an unknown primary tumor. Histologic staining patterns were used to suggest that the tumor may have originated from her urinary bladder.

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