Diagnostic Sign of Terra Firma-Forme Dermatosis
- 1 Arab Board of Health Specializations, Department of Dermatology and Venereology, Al-Qassimi Hospital, Sharjah, United Arab Emirates
- 2 Arab Board of Health Specializations, Department of Dermatology and Venereology, Al-Qassimi Hospital, Sharjah, United Arab Emirates
- 3 College of Medicine, Sharjah University, Sharjah, United Arab Emirates
Abstract
Background: Terra Firma-Forme Dermatosis (TFFD), a benign skin condition which presents with asymptomatic brown to black plaques which resemble dirty skin. Aim: To document a new case presentation with TFFD in the Arab region which is considered as one of the differential diagnos e s of dirty neck. Case presentation: A 15-year-old girl presented with a history of asymptomatic brownish dirt-like lesion on the nape and sides of the neck for 4-years duration, not resolved by wash with water and soap and confused with other dermatos e s like acanthosis nigricans or atopic dermatitis. The diagnosis of TFFD was confirmed when the lesions were completely resolved after gentle swabbing with 70% isopropyl alcohol. Conclusion: TFFD is rarely reported in Arab region and should be considered when evaluating cases of dirty neck-like presentation of atopic dermatitis or acanthosis nigricans.
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