Ohta Keiichi, Yoshimura Hitoshi, Matsuda Shinpei, Imamura Yoshiaki, Sano Kazuo
Department of Dentistry and Oral Surgery, Unit of Sensory and Locomotor Medicine, Division of Medicine, Faculty of Medical Sciences.
Division of Surgical Pathology, University of Fukui Hospital, Fukui, Japan.
Medicine (Baltimore). 2020 Feb;99(6):e18985. doi: 10.1097/MD.0000000000018985.
Oral liposarcoma is an extremely rare lesion that is often clinically misdiagnosed as a benign lesion because of its asymptomatic and indolent clinical course. we report a case of atypical lipomatous tumor/well-differentiated liposarcoma (ALT/WDL) of buccal mucosa, provisionally diagnosed as lipoma.
A 97-year-old female was referred to dentistry and oral surgery department with an asymptomatic mass on the right buccal mucosa which had been present for an unknown period of time.
Magnetic resonance imaging demonstrated a well-circumscribed lesion at the right buccal mucosa, and a lipoma was suspected.
Surgical removal was performed, and a diagnosis of ALT/WDL was made. She and her family refused additional treatment due to her age.
At the 10 months follow-up, the patient remained free of disease.
The indolent clinical course and small size of oral liposarcoma can lead to provisional clinical diagnosis of benign lesion.
口腔脂肪肉瘤是一种极为罕见的病变,因其临床过程无症状且进展缓慢,常被临床误诊为良性病变。我们报告一例颊黏膜非典型脂肪瘤样肿瘤/高分化脂肪肉瘤(ALT/WDL),最初被诊断为脂肪瘤。
一名97岁女性因右侧颊黏膜出现无症状肿块且存在时间不明,被转诊至口腔颌面外科。
磁共振成像显示右侧颊黏膜有一个边界清晰的病变,怀疑为脂肪瘤。
进行了手术切除,诊断为ALT/WDL。由于患者年龄原因,她和家人拒绝了进一步治疗。
在10个月的随访中,患者无疾病复发。
口腔脂肪肉瘤的惰性临床过程和较小尺寸可导致临床初步诊断为良性病变。