Laryngeal Oncocytic Cystadenoma with Rare Location and Clinicopathological Aspects.

Laryngeal oncocytic cysts and cystadenomas are uncommon and observed in 0.1-1% of laryngeal biopsy specimens. A 66-year-old male was admitted to the hospital with a hoarse voice of 6 months duration. On laryngoscopic examination, a lesion of the left anterior vocal cord was present. It was excised by direct laryngoscopy and histopathologic examination revealed a cystic cavity with papillary projections into the lumen. The epithelial lining comprised bland oncocytic epithelium. These findings are characteristic of laryngeal oncocytic cystadenoma. Endoscopic excision is curative in these lesions. Oncocytic cystadenoma is a rare, cystic neoplasm that occurs in late adulthood. It may be considered in the clinicopathologic differential diagnosis of laryngeal lesions.