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Related Experiment Videos

Terra firma-forme dermatosis

T J O'Brien1, A P Hall

  • 1Geelong Hospital, Victoria, Australia.

The Australasian Journal of Dermatology
|August 1, 1997
PubMed
Summary

Terra firma-forme dermatosis (TFFD) is a common skin condition often mistaken for other issues. This disorder presents as brown patches on the neck, treatable with alcohol but not soap.

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Area of Science:

  • Dermatology
  • Clinical Medicine

Background:

  • Terra firma-forme dermatosis (TFFD) is an underdiagnosed dermatological condition.
  • The etiology of TFFD remains unknown.

Observation:

  • TFFD typically manifests in childhood on the neck.
  • Clinical presentation includes dirty brown patches.
  • These patches are resistant to soap but respond to alcohol-based cleansing.

Findings:

  • TFFD is characterized by distinctive brown patches.
  • Diagnostic challenge: easily confused with acanthosis nigricans.

Implications:

  • Highlights the need for increased clinical awareness of TFFD.
  • Suggests simple diagnostic and therapeutic measures.
  • Differentiates TFFD from other hyperpigmentation disorders.