Sureja Venu Patel, Tagore Koyye Ravindranath
Department of Pathology, Star Hospitals, Hyderabad, Telangana, India.
Indian J Pathol Microbiol. 2023 Jul-Sep;66(3):591-593. doi: 10.4103/ijpm.ijpm_323_21.
Neoplastic lipomatous lesions of the salivary glands constitute ≤0.5% of all the salivary gland tumors. Oncocytic sialolipoma of the parotid glands is extremely uncommon. We report a case of oncocytic sialolipoma of the parotid gland in a 59-year-old male who presented with a gradually increasing swelling of the right parotid. Excisional parotid biopsy performed in view of possible pleomorphic adenoma as suggested on ultrasonography showed histological features consistent with oncocytic sialolipoma. We also described the characteristics of 24 previously reported cases of oncocytic sialolipoma of the parotid gland. The median age of the patients including the present case was 56 years (range 7-89), and 14 were male. The largest and the least reported sizes of the tumor were 7.0 and 1.4 cm, respectively. The left-sided parotid gland was more commonly involved (14/23). Despite its rarity, oncocytic sialolipoma should be considered in lipomatous parotid lesions showing epithelial components with oncocytic changes.
涎腺肿瘤性脂肪瘤样病变占所有涎腺肿瘤的比例≤0.5%。腮腺的嗜酸性细胞性涎腺脂肪瘤极为罕见。我们报告一例59岁男性腮腺嗜酸性细胞性涎腺脂肪瘤病例，该患者表现为右侧腮腺逐渐肿大。鉴于超声检查提示可能为多形性腺瘤，遂行腮腺切除活检，组织学特征符合嗜酸性细胞性涎腺脂肪瘤。我们还描述了之前报道的24例腮腺嗜酸性细胞性涎腺脂肪瘤病例的特征。包括本病例在内的患者中位年龄为56岁（范围7 - 89岁），男性14例。肿瘤最大和最小报道尺寸分别为7.0 cm和1.4 cm。左侧腮腺更常受累（14/23）。尽管罕见，但在显示有嗜酸性细胞改变的上皮成分的腮腺脂肪瘤样病变中，应考虑嗜酸性细胞性涎腺脂肪瘤。
