Rare diseases · Sign or symptom

Hypoplastic dermoepidermal hemidesmosomes

HP:0020117

What it means

Underdeveloped hemidesmosomes at the dermoepidermal junction. Hemidesmosomes are the specialized junctional complexes, that contribute to the attachment of epithelial cells to the underlying basement membrane in stratified and other complex epithelia, such as the skin.

With this feature, the intracellular attachment plates may be thinner than usualler or separated into small, triangular segments. The thickness of the hemidesmosomes may be less than usual.

Rare diseases that can present with this3

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

Hypoplastic dermoepidermal hemidesmosomes

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This 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.