Coexistence of laryngoceles and laryngeal carcinoma is still being debated, and there are several suggested theories about the pathophysiological relationship between these two entities. We present the case of a 66-year-old male patient with bilateral laryngomucoceles and laryngeal squamos cell carcinoma. A systematic hystological examination of whole organ sections showed that the submucosal spreading of cancer around the saccular necks on both sides caused stenosis which probably created a one-way valve mechanism allowing air to enter the saccule but not to exit. Progression of the tumor completely obstructed the laryngeal opening, leading to glandular secretion stagnation and formation of laryngomucocelesO istovremenom postojanju laringokela i karcinoma larinksa se još uvijek raspravlja. Postoji nekoliko predloženih teorija o patofiziološkim odnosima između ova dva entiteta. Predstavljamo slučaj 66-godišnjeg muškarca s bilateralni laringomukokelama i planocelularnim karcinomom larinksa. Patohistološka analiza pokazala je submukozno širenje karcinoma oko vrata mukokele na obje strane što je vjerojatno prouzročilo stenozu i stvorilo jednosmjerni ventil mehanizam koji omogućava ulaz zraka u laringokelu, ali ne i izlaz. Progresija tumora potpuno zatvara laringealni otvor, a što dovodi do stagnacije žljezdane sekrecije i stvaranja laringomukokele
