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Start free with EleplanFocal acral hyperkeratosis
ORPHA:308013Disease
Also called PPKP3 without elastoidosis · PPPK3 without elastoidosis · Punctate palmoplantar hyperkeratosis type 3 without elastoidosis · Punctate palmoplantar keratoderma type 3 without elastoidosis
What it is
A rare epidermal disease characterized by multiple, usually asymptomatic, yellowish to flesh colored hyperkeratotic papules and plaques on the palms and soles, with a preference for the palmar and plantar margins. Histological examination shows pronounced orthohyperkeratosis overlying a crateriform depression in the epidermis, with hypergranulosis and mild acanthosis, while elastorrhexis is absent. The lesions appear in the second or third decade of life and gradually increase in number over several years. The condition may be sporadic or familial.
Key facts
- Classified as
- Disease
Recorded for the broader condition
- Inheritance
- Autosomal dominantMarginal papular palmoplantar keratoderma
Orphanet records these for the broader condition rather than for this specific form. They are a starting point, not a figure for this subtype — subtypes often differ, and some are defined by being rarer than the condition they sit under.
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.
Related health topics
Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.
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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