PDF(Pubmed)
Abstract：
Mucoepidermoid carcinoma (MEC) is a salivary gland tumor commonly arising from the parotid gland. MEC has various presenting symptoms, including a painless, slow-growing mass below or anterior to the ear lobule. However, an unusual presentation can also be in the form of post-auricular swelling. Other more common benign differentials for post-auricular swelling include lymphadenopathy, epidermoid cysts, and lipomas. Thus, diagnosing a postauricular swelling as MEC solely based on clinical presentation is challenging, and a high suspicion, as well as a multidisciplinary approach with various radiological investigations such as computed tomography (CT) and magnetic resonance imaging (MRI), are required in collaboration with histopathological assessment for an accurate diagnosis of this malignancy. Prognosis depends on various factors, including the grade of the tumor, the patient\'s age, and comorbidities, as well as the stage at the time of diagnosis. Early diagnosis and surgical intervention are the mainstays of treatment, which can be followed by adjuvant radiotherapy based on the stage of the malignancy. This is a report of a patient who presented with post-auricular swelling, which was initially misdiagnosed as a benign necrotic lymph node. After further evaluation, it was found to be a mucoepidermoid carcinoma of the parotid gland, which was managed by surgical excision and radiotherapy.
摘要：
粘液表皮样癌（MEC）是一种通常由腮腺引起的唾液腺肿瘤。MEC有各种症状，包括无痛的,在耳叶下面或前面缓慢生长的肿块。然而,不寻常的表现也可以是耳后肿胀的形式。耳后肿胀的其他更常见的良性差异包括淋巴结病，表皮样囊肿,还有脂肪瘤.因此，仅根据临床表现将耳廓后肿胀诊断为MEC具有挑战性，高度怀疑,以及具有各种放射学研究的多学科方法，例如计算机断层扫描（CT）和磁共振成像（MRI），需要与组织病理学评估合作才能准确诊断这种恶性肿瘤。预后取决于各种因素，包括肿瘤的分级,病人的年龄,和合并症，以及诊断时的阶段。早期诊断和手术干预是治疗的支柱,之后可以根据恶性肿瘤的分期进行辅助放疗。这是一个患者出现耳后肿胀的报告，最初被误诊为良性坏死淋巴结。经过进一步评估,它被发现是腮腺粘液表皮样癌，通过手术切除和放射治疗。
