Morgado Sara, Santos Ana F, Nogueira Fernando
Pulmonology Deparment, Unidade Local de Saúde de Lisboa Ocidental, Lisbon, PRT.
Cureus. 2025 Mar 7;17(3):e80188. doi: 10.7759/cureus.80188. eCollection 2025 Mar.
Primary epithelial-myoepithelial carcinoma (EMC) of the lung is a rare subtype of pulmonary tumors. Originating from bronchial submucosal glands, EMC shares histopathological characteristics with its salivary gland counterparts and typically presents as a low-grade malignancy. Due to its rarity, there is limited literature to guide diagnosis and management. We report the case of a 75-year-old male with a history of smoking and chronic conditions who presented with persistent right-sided back pain. Imaging revealed a para-hilar lesion in the right lung, later confirmed as EMC through bronchoscopy and histopathological analysis. Staging studies excluded local invasion and metastasis, and a multidisciplinary team recommended surgical resection. The patient underwent surgery without complications, and histological analysis of the resected specimen confirmed the diagnosis. At follow-up in the pulmonary oncology clinic, no recurrence or metastasis was observed. This case highlights the importance of a multidisciplinary approach for diagnosing and managing rare pulmonary neoplasms. Bronchoscopy and histopathological analysis played a crucial role in achieving an accurate diagnosis. This case contributes to the limited data on EMC and supports surgical intervention as the primary treatment option for localized disease.
原发性肺上皮-肌上皮癌(EMC)是肺肿瘤的一种罕见亚型。EMC起源于支气管黏膜下腺,与涎腺来源的同类肿瘤具有相同的组织病理学特征,通常表现为低度恶性。由于其罕见性,指导诊断和治疗的文献有限。我们报告一例75岁男性患者,有吸烟史和慢性疾病史,因持续性右侧背痛就诊。影像学检查发现右肺门旁病变,随后通过支气管镜检查和组织病理学分析确诊为EMC。分期检查排除了局部侵犯和转移,多学科团队建议手术切除。患者接受手术,未出现并发症,切除标本的组织学分析证实了诊断。在肺部肿瘤门诊随访时,未观察到复发或转移。该病例突出了多学科方法在诊断和管理罕见肺肿瘤中的重要性。支气管镜检查和组织病理学分析在获得准确诊断中发挥了关键作用。该病例为关于EMC的有限数据做出了贡献,并支持手术干预作为局限性疾病的主要治疗选择。