Neurological symptoms of leptomeningeal carcinomatosis as the primary manifestation of an adenocarcinoma of the nasal cavity and sinus: a case report and literature review.

Carcinomas of the nose and paranasal sinuses are rare solid head and neck tumours. With an incidence of 1-1.5/100,000 per year, they account for only 3% of all malignancies in the head and neck region. Sinonasal carcinomas are often adenocarcinomas. Hardwood dust is one possible triggering agent, although the latency period may extend to decades. Central… (More)