Sebocystomatosis

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Sebocystomatosis

ORPHA:841Disease

Also called Steatocystoma multiplex

What it is

Sebocystomatosis is characterized by multiple (100 to 2000) asymptomatic dermal cysts that usually occur on the sternal region, upper back, axillae and proximal parts of the extremities.

Key facts

Age of onset
Adolescent, Adult, Childhood
Inheritance
Autosomal dominant, Not applicable
Classified as
Disease

Signs and symptoms

Sometimes5–29%

1

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.

Gene

KRT17Disease-causing germline mutation(s)

ICD-10 codes

L72.2ICD-10 names this disease exactly — shared with 1 other rare disease

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

GARD 5003MEDDRA 10048905MESH D062685MONDO 0008485OMIM 184500UMLS C0259771

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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