Cutaneous metastasis from pulmonary large cell neuroendocrine carcinoma in the scalp.

Neuroendocrine tumor of the lung is classified into four subtypes according to the recent World Health Organization Classification: typical carcinoid, atypical carcinoid, small cell carcinoma, and large cell neuroendocrine carcinoma (LCNEC) [1]. LCNEC is a relatively rare histopathological subtype of lung carcinoma, which accounts for approximately 3% of all lung carcinomas [1]. It has been well recognized that this type of carcinoma as well as small cell carcinoma of the lung show an aggressive clinical course [2].