title: Zosteriform inflammatory metastatic carcinoma.
abstract: A 57-year-old man presented with chest wall lesions and swelling of his left arm. The rapid onset of vesicular lesions in a dermatomal distribution resulted in an initial diagnosis of herpes zoster. Cutaneous biopsy revealed adenocarcinoma and further evaluation revealed a primary source of pulmonary adenocarcinoma. Lymphatic spread of tumor cells is the most likely source of the zosteriform skin lesions, but other possibilities are discussed.
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology*; D003937:Diagnosis, Differential; D006562:Herpes Zoster / Q000473:pathology; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D009362:Neoplasm Metastasis; D012867:Skin / Q000473:pathology*; D012878:Skin Neoplasms / Q000473:pathology*