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Solitary Cartilaginous Exostosis of the Ilium Presenting as an Abdominal Mass

Fred A. Lee, MD
Am J Dis Child. 1967;114(2):195-197. doi:10.1001/archpedi.1967.02090230125017.
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THE NATURE of an abdominal mass is always a diagnostic challenge to both the clinician and the radiologist. Bone tumors are rarely the cause of abdominal masses in children. In this paper we report a boy with a solitary osteocartilaginous exostosis of the ilium which presented clinically as a mass in the lower abdomen.

Report of a Case  A 4-year-old white boy, was well until three days prior to admission when his left lower abdomen became painful, and a limp developed on the left side. He did not vomit, was not nauseous, and had not changed his bowel or urinary habits. Laxatives did not relieve his symptoms. On the day of admission, his pediatrician felt a hard mass in the left lower quadrant of the abdomen.Past medical and family history were noncontributory.Physical examination was normal except for the presence of a hard, fixed, slightly-tender mass about 5 cm


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