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Abstract
Diagnostic Imaging
A case of a bronchial foreign body in the form of a tablet diagnosed by X-ray imaging
Hatsumi Okubo* Yuki Takagi Tomohiro Tamura Shozaburo Yamaguchi Ikuta Hashimoto Takayuki Kaburagi
Respiratory Disease Center, Ibaraki Prefectural Central Hospital, Ibaraki Cancer Center
*Present address: Department of Internal Medicine, Ibaraki City Hospital
ABSTRACT
The subject is an 88-year-old man who was undergoing maintenance dialysis. He was admitted for a lumbar compression fracture. X-ray imaging seeking the cause of his high C-reactive protein (CRP) level showed round, highly absorbent bodies in his left main bronchus, stomach, and colon. He was taking lanthanum carbonate hydrate (Fosrenol®) chewable tablets. We diagnosed an airway foreign body that had not been chewed and removed it by bronchoscopy. Lanthanum carbonate is a phosphate binding agent without a calcium load, and it is activated by chewing. It does not dissolve and is therefore not absorbed by the body. It absorbs X-rays at the same high rate as iodine and barium. X-ray imaging is useful for diagnosing a lanthanum carbonate hydrate airway foreign body.
KEYWORDS
Airway foreign body Aspiration Lanthanum carbonate hydrate Chewable tablet
Received 4 Oct 2018 ／ Accepted 10 May 2019
AJRS, 8(4): 302-305, 2019
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