Mucoceles, pyoceles and cystic degenerative lesions of the mucous membrane of the frontal and ethmoid paranasal sinuses.
D004194:Disease; D005004:Ethmoid Bone; D005005:Ethmoid Sinus; D005626:Frontal Sinus; D006801:Humans; D009078:Mucocele; D009092:Mucous Membrane; D010254:Paranasal Sinus Diseases; D010256:Paranasal Sinuses
ETHMOID SINUS/diseases; FRONTAL SINUS/diseases; MUCOUS MEMBRANE/diseases; SINUSES, NASAL/dis