Abstract
Although lipomas are common soft tissue tumors, few cases of lipoma or its variants have been reported in the oral cavity. We here described the clinical, histological, and immunohistochemical features of 24 cases of oral lipoma obtained from medical records at Nagasaki University Hospital between 1977 and 2010, and also retrospectively reviewed 603 cases of oral lipoma reported in the English literatures. The patients examined comprised 11 men and 13 women with a mean age of 59 years, ranging from 31 to 90 years. The main sites involved were the buccal mucosa (n = 9), followed by the tongue (n = 4), lip and retromolar area (n = 3), floor of the mouth (n = 2), and gingiva (n = 1). The mean tumor size was 2.0 cm, ranging from 0.2 to 5 cm. Histological analysis revealed 20 cases of lipoma, 2 cases of fibrolipoma, and one case each of intramuscular lipoma and spindle cell lipoma. Twenty-three cases were treated surgically while one case underwent biopsy and follow-up. Recurrence was not observed in any case. We reviewed the English literatures, and similar results were obtained. In immunohistochemical analysis, PCNA and ki-67 expression indices were higher in intramuscular lipoma cases than in its variants. Especially, it showed that a long time follow-up may be necessary in ki-67 positive cases.
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Abbreviations
- F:
-
Female
- M:
-
Male
- cm:
-
Centimeters
- NA:
-
Not available
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Naruse, T., Yanamoto, S., Yamada, Si. et al. Lipomas of the Oral Cavity: Clinicopathological and Immunohistochemical Study of 24 Cases and Review of the Literature. Indian J Otolaryngol Head Neck Surg 67 (Suppl 1), 67–73 (2015). https://doi.org/10.1007/s12070-014-0765-8
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DOI: https://doi.org/10.1007/s12070-014-0765-8