Spindle cell lesions of the salivary glands are rare and account for less than 3% of the salivary gland aspirates. A definitive classification of salivary gland neoplasms by fine needle aspiration is possible for the most common lesions but remains a challenge for the less common entities. We present a case of a 72‐year‐old male with a solitary fibrous tumour (SFT) of the submandibular gland mimicking a myoepithelial‐rich pleomorphic adenoma (PA). In this article, we discuss novel insights that help differentiate SFT from PA and other spindle cell lesions.

中文翻译：

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下颌下腺孤立性纤维瘤：临床实践中对多形性腺瘤的密切模仿者的新见解和细胞病理学家的诊断挑战

唾液腺的梭形细胞病变很少见，占唾液腺抽吸物的不到 3%。对于最常见的病变，通过细针抽吸对唾液腺肿瘤进行明确分类是可能的，但对于不太常见的实体仍然是一个挑战。我们介绍了一例 72 岁男性，其下颌下腺孤立性纤维瘤 (SFT) 与富含肌上皮的多形性腺瘤 (PA) 相似。在本文中，我们讨论了有助于区分 SFT 与 PA 和其他梭形细胞病变的新见解。