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Pseudoxanthomatous diffuse cutaneous mastocytosis

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Disease definition

Pseudoxanthomatous diffuse cutaneous mastocytosis (PDCM) is a rare form of diffuse cutaneous mastocytosis (DCM) characterized by yellow-orange infiltrated and xanthogranuloma-like lesions with only limited blistering.

ORPHA:280794

Classification level: Subtype of disorder

Synonym(s):
  • Infiltrative small vesicular DCM
  • Infiltrative small vesicular diffuse cutaneous mastocytosis
  • Pseudoxanthomatous DCM

Prevalence: <1 / 1 000 000

Inheritance: Not applicable

Age of onset: Infancy, Neonatal

ICD-10: Q82.2

ICD-11: 2A21.1Y

UMLS: C5679949

Summary
Epidemiology

Only a small number of cases (around 10) of PDCM have been reported in the literature to date.

Clinical description

Onset most commonly occurs in early infancy with small vesicles and pseudoxanthomatous lesions developing after puberty.

Etiology

Mutations in the KIT gene (4q11-q12) have been detected in patients with DCM.

Last update: June 2013 - Expert reviewer(s): Pr A.P. [Arnold] ORANJE
A summary on this disease is available in Español, Nederlands
Detailed information

Logo ERN: produced/endorsed by ERN(s) Logo FSMR: produced/endorsed by FSMR(s)

General public
Article for general public
Svenska (2016) - Socialstyrelsen
Guidelines
Emergency guidelines
Français (2024.pdf) - Orphanet Urgences
Clinical practice guidelines
Diagnostic Keys
Français (2024) - Les clés du diagnostic Logo FSMR
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