PDF(Pubmed)
Abstract：
Pleomorphic adenoma is a benign tumor that can occur in the salivary glands, most commonly in the parotid gland. While it primarily occurs in the major salivary glands, it can sometimes be found in the minor salivary glands. Within the minor salivary glands, it most often originates in the hard palate and soft palate, and less frequently in the upper lips. Due to its location in the minor salivary glands, most pleomorphic adenoma involve and protrude on the mucosa. A 61-year-old man presented with 1.5 cm exophytic mass on the skin of his upper lip. This mass was exophytic on the skin and did not involve or protrude into the inner lip mucosa. The mass was entirely excised, and a subsequent permanent biopsy diagnosed it as a pleomorphic adenoma. In such situations, it can be challenging to suspect pleomorphic adenoma during a physical examination, leading to potential diagnostic confusion. It might also be mistaken for an inclusion cyst or another type of mass, making it tempting to treat without verifying the pathological results.
摘要：
多形性腺瘤是一种良性肿瘤，可以发生在唾液腺，最常见于腮腺。虽然它主要发生在主要唾液腺，它有时可以在小唾液腺中发现。在小唾液腺内，它通常起源于硬腭和软腭，上唇的频率较低。由于它在小唾液腺中的位置，大多数多形性腺瘤累及并突出于粘膜。一名61岁的男子上唇皮肤上有1.5厘米的外生肿块。该肿块在皮肤上是外生性的，没有累及或突出到内唇粘膜中。肿块被完全切除了，随后的永久性活检诊断为多形性腺瘤。在这种情况下,在体检中怀疑多形性腺瘤可能是具有挑战性的，导致潜在的诊断混乱。也可能被误认为包涵囊肿或其他类型的肿块，在没有验证病理结果的情况下进行治疗。
