Na-Ding-Yong-Hong-Lu-Mo-Hong-Li-Ming-Shi-Shan-Yu-H Luo

A rare case of metastatic Merkel cell carcinoma presenting without a primary cutaneous lesion

Rationale: Merkel cell carcinoma (MCC) is a rare, aggressive cutaneous neuroendocrine malignancy. While typically associated with a primary skin lesion, cases of occult-primary MCC are uncommon and pose significant diagnostic challenges, often leading to delays in appropriate management. Patient concerns: A 44-year-old...