Question of the Week
October 14, 2020
A 75-year old Caucasian man presented a rapidly growing red to violaceous nodule on his cheek. Biopsy was performed with the following histopathology:
What is the most likely diagnosis?
- Chronic lymphocytic leukemia
- Merkel cell carcinoma
- Malignant melanoma
- Metastatic small (oat) cell carcinoma