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平滑肌瘤少见于口腔,常见于肠胃道和子宫,子宫内平滑肌瘤有20％的病人是30岁以上。软组织的平滑肌瘤主要发生在皮肤和皮下组织。复习文献有57例,继后Ekestrom报告8例发生于颊和外耳,Robinson等报告16例口腔平滑肌肉瘤,加上作者报告一例平滑肌瘤。所有作者报告的病例,口腔内最常见部位是舌,大多数舌平滑肌瘤是无蒂的包块,但Merrill等报告一例有蒂。其次依次常见部位是颊部、硬腭,下唇,其他部位为上唇、
Leiomyomas are rare in the mouth and are often found in the gastrointestinal tract and uterus. In uterine leiomyomas, 20% of patients are over 30 years of age. Soft tissue leiomyomas mainly occur in the skin and subcutaneous tissues. Review of the literature in 57 cases, followed by Ekestrom reported 8 cases occurred in the cheeks and outer ear, Robinson et al reported 16 cases of oral leiomyosarcoma, plus the author reported a case of leiomyoma. In all cases reported by the authors, the most common site in the mouth was the tongue. Most lingual leiomyomas were sessile masses, but Merrill et al. reported a case of pedicles. The next most common site is the cheek, hard palate, lower lip, and other parts of the upper lip.