Fernandez S H
Department of Pathology, Hospital Sultanah Aminah Johor Baru.
Malays J Pathol. 1999 Dec;21(2):117-21.
An 86-year-old man presented with a painless, pea-sized growth over the left angle of his jaw, which had been gradually enlarging over two years. A clinical diagnosis of pilar cyst was made. Histopathological examination of the mass revealed a malignant proliferating trichilemmal tumour. During follow-up 4 months later, a palpable small upper jugular lymph node was noted at the left side of the neck. Biopsy revealed a metastatic malignant trichilemmal tumour. This case illustrates a rare malignant tumour which is a challenge to clinical diagnosis.
一名86岁男性患者，其左侧下颌角出现一个无痛性、豌豆大小的肿物，该肿物在两年内逐渐增大。临床诊断为毛囊囊肿。对该肿物进行组织病理学检查，结果显示为恶性增殖性外毛根鞘瘤。4个月后的随访期间，在左侧颈部可触及一个小的上颈淋巴结。活检显示为转移性恶性外毛根鞘瘤。该病例展示了一种罕见的恶性肿瘤，对临床诊断构成挑战。
