Abstract：
Canalicular adenoma (CA) is a rare benign tumor of the salivary glands, predominantly affecting elderly females, with a strong predilection for the upper lip. While CA commonly arises in the minor salivary glands, its occurrence in the parotid gland is exceptionally rare. In this report, we present a unique case of CA in the parotid gland, adding to the scant literature with only 8 documented instances. The patient, a 57-year-old Asian male, presented with a painless swelling in the left parotid gland that had been persisting for 8 years. Clinical examination and imaging studies identified a lobulated mass, prompting surgical intervention. The patient underwent a superficial parotidectomy, and pathological examination of the excised tissue confirmed the diagnosis of CA, with no signs of malignancy. This case illustrates the diagnostic and management challenges associated with CA, particularly given its rare presentation in the parotid gland. Accurate diagnosis is reliant on surgical biopsy, and careful surgical planning is imperative, especially considering the proximity of the facial nerve. Our case underscores the need for heightened awareness of CA\'s unique presentations, particularly within the Asian population. Given the potential for recurrence, long-term follow-up is essential. Further research is needed to elucidate the biological behavior of CA and to refine management strategies for optimal patient outcomes.
摘要：
泪小管腺瘤（CA）是一种罕见的唾液腺良性肿瘤，主要影响老年女性，对上唇有强烈的偏爱。虽然CA通常出现在小唾液腺，它在腮腺的发生是非常罕见的。在这份报告中,我们在腮腺出现了一个独特的CA病例,增加了只有8个记录在案的文献。病人,一位57岁的亚洲男性,表现为持续8年的左腮腺无痛肿胀。临床检查和影像学检查发现了一个分叶状肿块，提示手术干预。病人接受了浅表腮腺切除术,切除组织的病理检查证实了CA的诊断，没有恶性肿瘤的迹象.此案例说明了与CA、特别是考虑到它在腮腺的罕见表现。准确的诊断依赖于手术活检,仔细的手术计划势在必行，尤其是考虑到面神经的距离.我们的案例强调需要提高对CA独特演示的认识，特别是在亚洲人口中。考虑到复发的可能性，长期随访至关重要。需要进一步的研究来阐明CA的生物学行为，并完善管理策略以获得最佳患者结果。
