Sankari S Leena, Dhanavelu Prakash, Priya P Sangeetha, Jimson Sudha
Department of Oral Pathology and Microbiology, Sree Balaji Dental College and Hospital, Bharath Institute of Higher Education and Research, Chennai, Tamil Nadu, India.
Department of Oral and Maxillofacial Surgery, Sree Balaji Dental College and Hospital, Bharath Institute of Higher Education and Research, Chennai, Tamil Nadu, India.
J Oral Maxillofac Pathol. 2021 Sep-Dec;25(3):557. doi: 10.4103/jomfp.jomfp_362_21. Epub 2022 Jan 11.
Pleomorphic adenoma is the most common benign salivary gland tumour characterized by great histologic diversity. The presence of extensive squamous metaplasia and numerous keratin pearls is mostly uncommon in the microscopic study and can signify a potential pitfall in the histopathological diagnosis Pleomorphic adenoma can show the presence of squamous metaplasia with keratin pearls as a rare finding and is encountered most often in the parotid gland (84%) and 6% in the minor salivary gland. Here we present a case report of a rare histopathological variant of pleomorphic adenoma with exuberant squamous metaplasia and keratin pearl formation of the minor salivary gland in an unusual location.
多形性腺瘤是最常见的涎腺良性肿瘤，其组织学表现具有高度多样性。在显微镜检查中，广泛的鳞状化生和大量角质珠的出现大多并不常见，这可能意味着组织病理学诊断中存在潜在的陷阱。多形性腺瘤可表现为鳞状化生伴角质珠形成，这是一种罕见的表现，最常发生于腮腺（84%），小涎腺中占6%。在此，我们报告一例罕见的多形性腺瘤组织病理学变异病例，该病例发生于小涎腺的一个不寻常部位，伴有旺盛的鳞状化生和角质珠形成。
