Rare diseases · Sign or symptom
Trichoepithelioma
HP:0025367
What it means
A benign hair follicle tumor whose tumor cells form rudimentary hair follicles but not actual hair shafts. A trichoepithelioma is usually less than one centimeter, firm, round, and shihy with yellow, pink, brown, or bluish color. They may occur multiply, usually on the face, and may gradually increase in number with age.
Rare diseases that can present with this1
The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.
Part of the broader category
Tracking symptoms like this for someone? Eleplan keeps symptoms, diagnoses, medications and every specialist in one plan.
Start free with EleplanThis page uses the Human Phenotype Ontology (2026-06-23) — Human Phenotype Ontology Consortium, hpo.jax.org. Disease associations from Orphanet (INSERM), CC BY 4.0. Content is educational and is not medical advice.