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Published online: 2024-11-21

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Ultraviolet-induced fluorescence dermatoscopy facilitates the diagnosis of terra firma-forme dermatosis

Agnieszka Pszczółkowska1, Linda Tognetti2, Magdalena Żychowska1
DOI: 10.5603/fd.103159

Abstract

Terra firma-forme dermatosis (TFFD) is a benign, underdiagnosed, pigmentation disorder presenting with brownish scales resembling dirty skin. The lesions are resistant to washing with common soaps and may be removed with 70% alcohol rub, which also constitutes the diagnostic test of TFFD, referred to as the Skin Modified by Alcohol Rubbing Test (SMART). The article presents a case of a 16-year-old boy, in whom TFFD was diagnosed during a routine nevi check-up using ultraviolet-induced fluorescence dermatoscopy (UVFD). Furthermore, the paper discusses the clinical utility of UVFD in the diagnostic process and treatment assessment.

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References

  1. Duncan WC, Tschen JA, Knox JM. Terra firma-forme dermatosis. Arch Dermatol. 1987; 123(5): 567–569.
  2. Sechi A, Patrizi A, Savoia F, et al. Terra firma-forme dermatosis: a systematic review. Int J Dermatol. 2021; 60(8): 933–943.
  3. Vakirlis E, Theodosiou G, Lallas A, et al. Terra firma-forme dermatosis: differential diagnosis and response to salicylic acid therapy. Pediatr Dermatol. 2019; 36(4): 501–504.
  4. Erkek E, Sahin S, Çetin ED, et al. Terra firma-forme dermatosis. Indian J Dermatol Venereol Leprol. 2012; 78(3): 358–360.
  5. Akkash L, Badran D, Al-Omari AQ. Terra Firma forme dermatosis. Case series and review of the literature. J Dtsch Dermatol Ges. 2009; 7(2): 102–107.
  6. Greywal T, Cohen P. Non-invasive methods to establish the diagnosis of terra firma-forme dermatosis: the SMART (Skin Modified by Alcohol Rubbing Test) evaluation and dermoscopy. Dermatol Online J. 2016; 22(6).
  7. Elmas Ö, Uyar B, Kilitçi A, et al. Dermoscopic patterns of terra firma-forme dermatosis. Dermatol Online J. 2020; 26(5): 13030.
  8. Ozturk Durmaz E. Chalk-white fluorescence under Wood light in a case of terra firma-forme dermatosis. Clin Exp Dermatol. 2021; 46(1): 165–166.
  9. Demircioğlu D, Sezer E, Durmaz EÖ. White fluorescence of terra firma-forme dermatosis under wood's light: another case. Photodiagnosis Photodyn Ther. 2024; 45: 103884.