Chun Sin Wook, Lee Suk Young, Kim Jong Baik, Choi Hoo Min, Ro Byung In, Cho Han Kyoung
Department of Dermatology, Myongji Hospital, Seonam University College of Medicine, Goyang, Korea.
Ann Dermatol. 2017 Feb;29(1):83-85. doi: 10.5021/ad.2017.29.1.83. Epub 2017 Feb 3.
Terra firma-forme dermatosis (TFFD) is a bizarre, acquired and idiopathic dermatosis that etiology has still not been fully defined. It is characterized by the presence of asymptomatic, brownish dirt-like lesion maybe due to disorder of keratinization. These lesions cannot be removed with ordinary cleansing. Therefore, TFFD can be differentiated from dermatosis neglecta. Patient was a 17-year-old man with brownish lesions on his face for 1 month. The patient had a history of regular washing habit with soap and water. The lesions were asymptomatic however due to cosmetic reasons, the patient wanted to treat his skin lesions. Punch biopsy revealed hyperkeratosis and fungal spore are in stratum corneum. Salicylic acid peeling with alcohol base was performed on the patient's face. The skin lesions disappeared completely on gentle swabbing with peeling. In this point, the diagnosis of TFFD could be considered. Since, this disease can be confused with dermatosis neglecta, we report this case with literature review.
地衣状皮肤病变（TFFD）是一种奇特的、后天获得性的特发性皮肤病，其病因尚未完全明确。它的特征是存在无症状的、褐色污垢样病变，可能是由于角化异常所致。这些病变用普通清洁方法无法去除。因此，TFFD可与忽视性皮肤病相鉴别。患者为一名17岁男性，面部出现褐色病变1个月。患者有定期用肥皂和水洗脸的习惯。病变无症状，但出于美容原因，患者希望治疗其皮肤病变。穿刺活检显示角质层有角化过度和真菌孢子。对患者面部进行了酒精基水杨酸脱皮治疗。用脱皮剂轻轻擦拭后，皮肤病变完全消失。此时，可以考虑诊断为TFFD。由于这种疾病可能与忽视性皮肤病相混淆，我们报告此病例并进行文献复习。
