[Adenolymphoma (Warthin's tumor) of the larynx: coexistence with the bilateral laryngocele. Contribution to differential diagnosis with oncocytic papillary cystadenoma].

Adenolymphoma is a benign monomorphic lesion composed of epithelial tissue. Usually it is found in parotid gland; however, its laryngeal occurrence was rarely described. Extraparotid Warthin's tumour as scanty lymphatic tissue. In cases when there is no lymphatic tissue in subepithelial layer it is called oncocytic cystadenoma. The authors describe the case of bifocal adenolymphoma in bilateral laryngocoele and indicate classification difficulties of oncocytic lesions in the larynx.