Erdheim-Chester Disease : a Rare Disease Presenting with Multiple Jaw Lesions in a Child(International Symposium of Maxillofacial and Oral Regenerative Biology in Okayama 2005)

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Clinical summary: A 13 years old female patient came to the Okayama University Hospital with a complaint of pain and swelling at the left side of the mandible. Radiological examination revealed a large well-defined radiolucent lesion extending from the mesial of tooth 35 to distal or 37 tooth(Fig.1A). Lingual plate perforation was also detected by CT scan (Fig.1B). With the provisional diagnosis of ameloblastoma, biopsy was done. The biopsy of the mandibular lesion was suspected of non-ossifying fibroma. Total curettage of the lesion was performed and post-operatively the healing was uneventful. During the follow-up period, 6 months after the operation, the patient complained of discomfort at the left maxillary region and epileptic attacks. Through examination of the patient by X-ray, CT scan and MRI revealed multiple bone lesions in the maxillae, tibias and fibulas bilaterally and a brain lesion. Curettage of the maxillary lesions was performed. She also underwent her brain surgery and the lesion removed was diagnosed as juvenile xanthogranuloma. The long bone lesions were only under surveillance and no intervening treatment was done. In the most recent follow-up, the patient was diagnosed to have an abdominal lesion as well.