Browsing by Author "Cheung, Hon Ming"

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    Complications of bezoar in children: What is new?
    (Hindawi Publishing Corporation, 2013-09-11) Hon, Kam Lun; Cheng, Jean; Chow, Chung Mo; Cheung, Hon Ming; Cheung, Kam Lau; Tam, Yuk Him; Leung, Alexander K.C.
    A bezoar is a mass found trapped in the gastrointestinal system. The condition may be associated with pica, especially in developmentally retarded children. Clinical manifestations are usually nonspecific. Endoscopic diagnosis and removal of the foreign materials is often indicated. Occasionally, severe complications may occur. We report two cases to illustrate the clinical features and complications in these children. In the first case, a reliable history was not obtained in the developmentally delayed girl which precluded prompt diagnosis, but the grossly dilated stomach on plain abdominal radiograph gave clues to an underlying insidious mechanical obstruction of upper gastrointestinal tract. In the second case of a normal child, the unrelenting symptoms and weight loss prompt further investigations which revealed the diagnosis. Literature on pediatric bezoar is reviewed. Oesophagoduodenoscopy is the investigation of choice for diagnostic confirmation, but surgical facilities must be available to deal with acute complications.
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    Magnetic Foreign Body Ingestion in Children: The Attractive Hazards
    (2019-04-28) Lin, Anna; Chan, Lawrence Chi Ngong; Hon, Kam Lun Ellis; Tsui, Siu Yan Bess; Pang, Kristine Kit Yi; Cheung, Hon Ming; Leung, Alexander K. C.
    Foreign body ingestions are frequent in the childhood population. Most foreign bodies are passed spontaneously through the gastrointestinal tract. However, on occasion, they can also be a rare cause of morbidity and even mortality, such as in the case of multiple magnetic foreign body ingestion, which can cause injury via magnetic attraction through bowel walls. We present two cases of multiple magnetic foreign body ingestion, which to our knowledge are the first ones reported in Hong Kong. One patient presented with shock and intestinal necrosis requiring extensive intestinal resection, whereas the other patient had no gastrointestinal injury but surgical removal was deemed necessary.