Atresias and synechias of a nasal cavity - connective tissue, cartilaginous or osteal adnations, it is partially or completely closing, a lumen of a nose. Seldom happen congenital, are consequence of a diphtheria, a typhoid, a systemic lupus erythematosus, a lues, a scleroma, a trauma is more often, etc.

Signs, current. Partial or full deenergizing of nasal respiration on the party of a lesion.