Diseases

Palmoplantar Diffuse Keratoderma

An autosomal dominant disorder characterized by a widely distributed, well-demarcated hyperkeratosis of the palms and soles. There is more than one genotypically distinct form, each of which is clinically similar but histologically distinguishable. Diffuse palmoplantar keratoderma is distinct from palmoplantar keratoderma (KERATODERMA, PALMOPLANTAR), as the former exhibits autosomal dominant inheritance and hyperhidrosis is frequently present.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

An autosomal dominant disorder characterized by a widely distributed, well-demarcated hyperkeratosis of the palms and soles. There is more than one genotypically distinct form, each of which is clinically similar but histologically distinguishable. Diffuse palmoplantar keratoderma is distinct from palmoplantar keratoderma (KERATODERMA, PALMOPLANTAR), as the former exhibits autosomal dominant inheritance and hyperhidrosis is frequently present.

MeSH Record

Classification

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MeSH Record

Synonyms

9 entry terms
  • Keratoderma, Palmoplantar, Diffuse
  • Thost-Unna Syndrome
  • Tylosis
  • Unna-Thost Syndrome
  • Syndrome, Thost-Unna
  • Syndrome, Unna-Thost
  • Thost Unna Syndrome
  • Unna Thost Syndrome
  • Keratosis Palmaris et Plantaris Familiaris

MeSH Record

Aspects Covered

35 allowable subheadings

Indexed with the subheadings blood, cerebrospinal fluid, chemically induced, classification, complications, congenital, diagnosis, diagnostic imaging, diet therapy, drug therapy, economics, embryology, enzymology, epidemiology, ethnology, etiology, genetics, history, immunology, metabolism, microbiology, mortality, nursing, parasitology, pathology, physiopathology, prevention & control, psychology, radiotherapy, rehabilitation, surgery, therapy, urine, veterinary, virology.

MeSH Record

Indexing Annotation

do not confuse with KERATODERMA, PALMOPLANTAR

MeSH Record

History Note

90

MeSH Record

Previous Indexing

  • Keratoderma, Palmoplantar (1974-1989)
  • Keratosis (1966-1973)

MeSH Hierarchy

Tree Numbers

AMA Style

References

  1. National Library of Medicine. Palmoplantar Diffuse Keratoderma. Medical Subject Headings (MeSH). 2026. Unique ID D015776. http://id.nlm.nih.gov/mesh/2026/D015776
  2. Palmoplantar Diffuse Keratoderma. In: Wikidata. https://www.wikidata.org/wiki/Q5275419