Metastatic sinonasal malignancies of colorectal origin: Case report and comprehensive review of the literature

Abstract

Key Clinical Message Primary adenocarcinomas represent a small percentage of sinonasal malignancies. Metastasis of colorectal malignancies to the paranasal sinuses is rare, poorly understood, and typically fatal. This case documents an unusual source of metastatic sinonasal malignancy and offers comparison to a cohort of similar patients found in the literature.

Keywords

• Head and neck malignancy
• metastatic colorectal cancer
• sinonasal malignancy
• sinonasal metastasis