Abstract
An infant girl, 1 year and 3 months old, had a sudden dyspnea eating a fried lobster and visited an otologist, who subjected her to tracheotomy and bronchoscopy suspecting a foreign body in the respiratory tract, but could discover no foreign body. Dyspnea still persisting after the tracheal cannula was removed, she then received a pediatrician's treatment.
She came to our hospital after 4-5 days of the onset owing to serious dyspnea. Tracheotomy was at once carried out and abundant granulation tissue which was found in the subglottic space was removed from its wound. Superior tracheoscopy revealed a thin, half-transparent piece of a lobster shell, 3mm square, which was removed. After that the symptoms were rapidly disappeared and she was cured.
