MCC and neoplasm: MCC stained with haematoxylin & eosin (Figure 3a) reveals a ‘small‐blue‐round‐cell tumour’ composed of dermal and/or subcutaneous nodules or sheets of small, closely packed, monomorphic, round‐to‐oval basaloid cells with a vesicular nucleus, finely granular chromatin pattern and scanty cytoplasm.25, 26