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Start free with EleplanGeneralized eruptive keratoacanthoma
ORPHA:411777Disease
Also called GEKA · Generalized eruptive keratoacanthomas of Grzybowski · Grzybowski syndrome
What it is
Generalized eruptive keratoacanthoma (GEKA) is rare variant of keratoacanthoma (KA) that affects the skin and mucous membranes and which is characterized by a sudden generalized eruption of severely pruritic, hundreds to thousands of small follicular papules, often with a central keratotic plug.
Key facts
- Prevalence
- <1 / 1 000 000
- Age of onset
- Adult, Elderly
- Inheritance
- Not applicable
- Classified as
- Disease
Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.
Signs and symptoms
These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.
ICD-10 codes
ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.
Cross-references
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
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