Radiology Department, Hospital do Divino Espirito Santo de Ponta Delgada, EPE, Ponta Delgada, Azores, Portugal.
Pathology Department, Instituto Português de Oncologia de Lisboa Francisco Gentil, Lisboa, Portugal.
BMJ Case Rep. 2020 Oct 30;13(10):e235932. doi: 10.1136/bcr-2020-235932.
Mucinous cystadenocarcinoma of minor salivary glands is an extremely rare entity that has only recently been described, with a few published cases in the English literature. A 42-year-old woman with a history of a surgically excised mucinous cystadenoma of the oral tongue, presented with a painful swelling in the oral tongue slowly growing for 1 month. On clinical examination, there was a firm, relatively well-circumscribed mass in the left posterior border of the mobile tongue. Subsequent MRI scan revealed a heterogeneous lesion composed of multiple cysts separated by contrast enhancing septa, in the posterior two-thirds of the left tongue. Imaging findings were similar to those of the previously resected mass, suggesting local relapse of the primary lesion. A complete surgical excision was performed and the histopathological examination revealed typical features of a low-grade mucinous cystadenocarcinoma of minor salivary glands.
小唾液腺黏液囊腺癌是一种极为罕见的疾病，直到最近才被描述，英文文献中仅有少数几篇相关报道。一位 42 岁的女性，曾因口腔舌部黏液囊腺瘤行手术切除，现因 1 个月来逐渐增大的舌部疼痛性肿胀就诊。临床检查发现，活动舌左后缘有一质地坚硬、界限相对清楚的肿块。随后的 MRI 扫描显示，左舌后 2/3 部分存在一个由多个分隔的对比增强间隔组成的混杂性病变。影像学表现与之前切除的肿块相似，提示原发性病变局部复发。行完整的手术切除，组织病理学检查显示典型的低度小唾液腺黏液囊腺癌特征。
