The Terra Firma-Forme Dermatosis Dermoscopic "Chromosome Arms Sign"

Authors

  • Mario Cutrone The Pediatric Operations Unit, Ospedaledell’Angelo, Venice, Italy
  • Julie Van Gysel Department of Dermatology. Free University of Brussels, Brussels, Belgium
  • Ramon Grimalt Universitat Internacional de Catalunya, Barcelona, Spain

Keywords:

Terra firma-forme dermatosis, Dirtydermatoses, Dermatoscopy, Chromosome arms, Duncan’s dermatosis

Abstract

Introduction
Terra firma-forme dermatosis (TFFD) belongs to the group of “dirty dermatoses” and represents a not well-known and surely underestimated skin condition.
Clinical Cases
We present 2 cases of TFFD and present clinical and dermatoscopical findings.
Results
We present specific dermatoscopical findings of TFFD.
Conclusion
We propose the denomination “chromosome arms” sign for Terra firma-forme dermatosis.

References

Errichetti E, Stinco G. Dermoscopy in terra firma-forme der-matosis and dermatosis neglecta. Int J Dermatol. 2017; 56: 1481- 1483. doi: 10.1111/ijd.13686

Greywal T, Cohen PR. Terra firma-forme dermatosis: A re-port often individuals with Duncan’s dirty dermatosis and litera-turereview. Dermatol Pract Concept. 2015; 5: 29-33. doi: 10.5826/ dpc.0503a08

Saha A, Seth J, Sharma A, Biswas D. Dermatitis neglecta – – a dirtydermatosis: Report of three cases. Indian J Dermatol. 2015; 60: 185-187. doi: 10.4103/0019-5154.152525

Gusdorf L, Cribier B. Clinicopathological aspects of terra fir-ma-forme dermatosis. Ann Dermatol Venereol. 2016; 143: 446-452. doi: 10.1016/j.annder.2016.02.023

Lucas JL, Brodell RT, Feldman SR. Dermatosis neglecta: A se-ries of case reports and review of other dirty-appearing dermato-ses. Dermatol Online J. 2006; 12: 5. doi: 10.5070/D304V3R596

Abdel-Razek MM, Fathy H. Terra firma-forme dermatosis: Case series and dermoscopic features. Dermatol Online J. 2015; 21: 13030/qt4rq5x48c.

Martın-Gorgojo A, Alonso-Usero V, Gavrilova M, Jordá-Cuevas E. Dermatosis neglectaorterra firma-forme dermatosis. Actas Der-mosifiliogr. 2012; 103: 932-934. doi: 10.1016/j.adengl.2011.12.006

Unal E, Guarneri C, Chokoeva AA, Wollina U, Tchernev G. Ter-ra firma-forme dermatosis. Wien Med Wochenschr. 2017; 167: 66-69. doi: 10.1007/s10354-016-0519-1

Errichetti E, Stinco G. Dermoscopy in general dermatology: A practical overview. Dermatol Ther (Heidelb). 2016; 6: 471-507. doi:

1007/s13555-016-0141-6

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Published

2025-05-26

How to Cite

Mario Cutrone, Julie Van Gysel, & Ramon Grimalt. (2025). The Terra Firma-Forme Dermatosis Dermoscopic "Chromosome Arms Sign". Dermatology, 10(1), 18–20. Retrieved from https://openventio.us/index.php/DER/article/view/2263