LSU School of Medicine-Shreveport, LSU Health Shreveport, Shreveport, Louisiana, USA.
Otolaryngology Head and Neck Surgery, LSU Health Shreveport, Shreveport, Louisiana, USA.
BMJ Case Rep. 2021 Feb 4;14(2):e237476. doi: 10.1136/bcr-2020-237476.
Proliferating trichilemmal tumours (PTTs) are rare cutaneous adnexal tumours derived from the hair shaft outer root sheath. We are reporting the first case of PTT in a young child. In this case, a 7-year-old girl presented with trichilemmal keratinisation consistent with PTT. The patient was monitored with no signs of recurrence. PTT is a rare tumour occurring primarily in adults and we present this case so that young patients with PTT can be diagnosed and treated appropriately with a painless, mobile, rapidly growing mass on the right upper eyelid. CT imaging showed well-circumscribed, heterogenous mass measuring 1.6 cm with fluid-filled appearance and no tissue invasion. Surgical excision was performed and pathology revealed an unencapsulated, well-demarcated tumour.
增殖性毛鞘瘤 (PTT) 是一种罕见的皮肤附属器肿瘤，来源于毛发外根鞘。我们报告了首例儿童 PTT 病例。本例为 7 岁女童，表现为符合 PTT 的毛鞘角化。患者经监测未见复发迹象。PTT 是一种罕见的肿瘤，主要发生在成年人，我们报告此病例是为了让患有 PTT 的年轻患者能够得到诊断和治疗，患者右上眼睑出现无痛、可移动、快速生长的肿块。CT 成像显示边界清楚、混杂密度的肿块，大小为 1.6cm，呈液性密度，无组织侵犯。进行了手术切除，病理显示为无包膜、界限清楚的肿瘤。
