Rare diseases · Sign or symptom
Cerebriform connective tissue nevus
HP:6000009
What it means
The cerebriform connective tissue nevus (CCTN) is one of the most characteristic skin findings. It commonly occurs on the soles of the feet, and frequently causes problems because of pain, pruritus, infection, bleeding,exudation, odor, and walking impairment.
The cerebriform connective tissue nevus is frequently observed in patients with Proteus syndrome and it is an important specific criterion for diagnosis.
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.