de Souza Fonseca Ricardo Roberto, Junior Mário Augusto Ramos, Baruchi Douglas, Carvalho Tabata Resque Beckmann, Soares Andresa Borges, de Menezes Silvio Augusto Fernandes, de Jesus Viana Pinheiro João, Fadul Jorge Nazareno Ferreira
Laboratory of Virology, Institute of Biological Sciences, Federal University of Pará, Belém, PA, Brazil.
Department of Oral Pathology, Barros Barreto Hospital, Belém, PA, Brazil.
Case Rep Pathol. 2020 Feb 19;2020:8474905. doi: 10.1155/2020/8474905. eCollection 2020.
Leiomyomas are rare benign tumors that grow in the tunica media of smooth muscle cells. Leiomyomas occur most frequently in the uterus or gastrointestinal tract and only very rarely in the area of the cheek. This study reports on a rare case of a leiomyoma in the cheek of a 43-year-old woman, who presented with a well-circumscribed, asymptomatic, mobile swelling in the right cheek. This swelling was slightly purplish in color and measured approximately 4 cm × 3 cm. Surgical excision was the treatment of choice, and the diagnosis was based on histopathological and immunohistochemical stains, which were positive for actin and desmin and negative for AE1/AE3, CD34, and S100. The patient's follow-up, two years later, showed no recurrence, and she has been asymptomatic since the surgery.
平滑肌瘤是一种罕见的良性肿瘤，生长于平滑肌细胞的中膜。平滑肌瘤最常发生于子宫或胃肠道，极少发生于脸颊部位。本研究报告了一例罕见的43岁女性脸颊平滑肌瘤病例，该患者右侧脸颊出现一个边界清晰、无症状、可活动的肿块。该肿块颜色略呈紫色，大小约为4厘米×3厘米。手术切除是首选治疗方法，诊断基于组织病理学和免疫组织化学染色，肌动蛋白和结蛋白呈阳性，而AE1/AE3、CD34和S100呈阴性。两年后的患者随访显示无复发，自手术以来一直无症状。
