Rare diseases · Sign or symptom

Abnormal hypothalamus morphology

Abnormal shape of hypothalamus

HP:0012286

What it means

Any structural anomaly of the hypothalamus.

The hypothalamus is a cone-shaped cerebral structure that projects downward, ending in the pituitary (infundibular) stalk, a tubular connection to the pituitary gland. It is linked vascularly with the anterior lobe of the pituitary gland and thereby controls the secretion of pituitary hormones.

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

Also called: Abnormality of hypothalamus morphology · Abnormality of the hypothalamus

Abnormal hypothalamus morphology

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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.