Abstract：
Pilomatricoma, also known as Pilamatrixoma or Malherbe\'s calcifying epithelioma, is a benign skin tumour with a bimodal age distribution between the paediatric and elderly age groups. Although it was previously thought to be rare, recent studies have revealed that it is quite common. Typically, pilomatricoma is diagnosed following histopathological examination of the lesion as it is frequently misdiagnosed with other types of skin pathology. In our case, the child presented with painless swelling of the left infraauricular region. The initial cytology and imaging were unable to provide a definite diagnosis. An excision biopsy was done, and a histopathological examination was suggestive of Pilomatricoma. Therefore, Pilomatricoma ought to be considered in the differential diagnosis of head and neck lesions in hopes of providing a better understanding on this pathological lesion.
摘要：
Pilomatricoma,也被称为皮拉马曲索瘤或Malherbe钙化上皮瘤，是一种良性皮肤肿瘤，在儿科和老年年龄组之间具有双峰年龄分布。虽然以前被认为是罕见的，最近的研究表明，这是相当普遍的。通常,毛囊瘤是在病变的组织病理学检查后诊断的，因为它经常被误诊为其他类型的皮肤病理学。在我们的案例中,患儿出现左耳下无痛肿胀。最初的细胞学和影像学检查无法提供明确的诊断。做了切除活检,组织病理学检查提示Pilomatricoma。因此,在头颈部病变的鉴别诊断中，应考虑Pilomatricoma，以期更好地了解这种病理病变。
