KROK 1 2011 – Question 92 · KROK (Medicine) · Pathomorphology
A 46-year-old man had a bulging dark macula on skin that caused no discomfort. With time it began to increase in size and became painful. It turned dark brown and there was a nodule on palpation. Histological examination of tissues revealed spindle and polymorphous cells with multiple mitoses. Their cytoplasm contained brown pigment. What tumour is it?
- A. Nevus
- B. Melanoma
- C. Hemangioma
- D. Basalioma
- E. -
Hint
Think about which cell type produces brown pigment in the skin, and what rapid growth, pain, a nodule and many mitoses imply about whether the lesion is benign or malignant.
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