UCSD Surgical Pathology Unknowns
A 67 year old male presented with a 4.5 cm skin lesion on the upper back.
What's your diagnosis?
A: trichoepithelioma
B: Basal cell carcinoma, nodular
C: Squamatization basal cell carcinoma
D: Basosquamous carcinoma
E: Basal cell carcinoma with squamous differentiation
Answer
Case credit: UCSD Pathology
Author: Wangpan Shi, MD
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