DYSPLASTIC LIPOMA IN ORAL CAVITY: CASE REPORT

Abstract

This report describes a case of a 45-year-old female patient who presented a tongue apex mass with 8 months of evolution and asymptomatic growth. Intraoral exam revealed a nodular lesion (1.5 cm) with a smooth surface, soft consistency, and covered by healthy pale-colored mucosa. After excision, the histopathologic exam revealed the proliferation of adipocytes of varying sizes, as well as the presence of small multivacuolated cells, which is suggestive of lipoblasts. We observed rare ovoid and fusiform nucleus cells without mitotic activity. The tumor was circumscribed and did not have a well-defined fibrous capsule. Adipocytic necrosis was seen in part of the specimen. Immunohistochemical reaction was focally positive for P-53 and positive for S-100 in tumor cells. These findings were consistent with dysplastic lipoma. The patient is in follow-up and there is no sign of recurrence. This report describes a case of a 45-year-old female patient who presented a tongue apex mass with 8 months of evolution and asymptomatic growth. Intraoral exam revealed a nodular lesion (1.5 cm) with a smooth surface, soft consistency, and covered by healthy pale-colored mucosa. After excision, the histopathologic exam revealed the proliferation of adipocytes of varying sizes, as well as the presence of small multivacuolated cells, which is suggestive of lipoblasts. We observed rare ovoid and fusiform nucleus cells without mitotic activity. The tumor was circumscribed and did not have a well-defined fibrous capsule. Adipocytic necrosis was seen in part of the specimen. Immunohistochemical reaction was focally positive for P-53 and positive for S-100 in tumor cells. These findings were consistent with dysplastic lipoma. The patient is in follow-up and there is no sign of recurrence.