Scherl M P, Som P M, Biller H F, Shah K
Arch Otolaryngol Head Neck Surg. 1986 Nov;112(11):1210-2. doi: 10.1001/archotol.1986.03780110086014.
Lipomatous tumors with intramuscular infiltration are uncommon in the head and neck. Oral lipomas have been recorded in the literature; however, infiltration and recurrence have rarely been documented. We describe a case of an oral lipoma that did not have microscopic characteristics of malignancy, lipoblastomatosis, or atypia, but which showed intramuscular invasion and recurred twice after surgery. Although certain characteristics distinguish our case from congenital lipomatosis, the clinical picture is quite similar. Lipomas with intramuscular invasion uniformly tend to recur when they are not widely resected, whether in the trunk and extremities or in the head and neck. These lesions can rapidly enlarge and infiltrate local tissues, and they require wide resection with an attempt at preservation of important structures. Preoperatively, computed tomographic analysis allows a lipoma to be diagnosed by its low attenuation, and a grossly infiltrating tumor can be distinguished from the ordinary well-encapsulated lesion.
伴有肌内浸润的脂肪瘤在头颈部并不常见。文献中已有口腔脂肪瘤的记载；然而，浸润和复发的情况鲜有记录。我们描述了一例口腔脂肪瘤病例，该病例没有恶性、脂肪母细胞瘤或异型性的微观特征，但显示有肌内侵犯且术后复发两次。尽管某些特征将我们的病例与先天性脂肪瘤病区分开来，但其临床表现颇为相似。伴有肌内侵犯的脂肪瘤，无论位于躯干和四肢还是头颈部，若未广泛切除，通常都会复发。这些病变可迅速增大并浸润局部组织，需要广泛切除并尽量保留重要结构。术前，计算机断层扫描分析可通过脂肪瘤的低密度来诊断，且可将明显浸润性肿瘤与普通的包膜完整病变区分开来。
