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A Case of Terra Firma-Forme Dermatosis Treated with Salicylic Acid Alcohol Peeling
( Sin Wook Chun ),( Suk Young Lee ),( Jong Baik Kim ),( Hoo Min Choi ),( Byung In Ro ),( Han Kyoung Cho ) 대한피부과학회 2017 Annals of Dermatology Vol.29 No.1
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. (Ann Dermatol 29(1) 83∼85, 2017)
Terra Firma-Forme Dermatosis: A Report of Four Cases and Review of the Literature
( Jin Woong Jung ),( Han Jin Jung ),( Yong Hyun Jang ),( Dong Hoon Shin ),( Sung Ae Kim ) 대한피부과학회 2018 大韓皮膚科學會誌 Vol.56 No.4
Terra firma-forme dermatosis is characterized by asymptomatic dirt-like papules and plaques. It appears as dirt-like lesions, but is known to develop in persons with normal hygiene habits. Terra firma-forme dermatosis is rarely reported and has an unknown etiology. It is hypothesized to occur as a result of abnormal keratinization. Terra firma-forme dermatosis is usually detected in children and young adults. Its characteristic features include disappearance with alcohol swabbing. Thus, wiping with alcohol-soaked cotton is recommended before any other examination in cases where terra firma-forme dermatosis is suspected. (Korean J Dermatol 2018;56(4):276∼279)