Rare diseases · Sign or symptom

Pancreatic islet-cell hyperplasia

HP:0004510

What it means

Hyperplasia of the islets of Langerhans, i.e., of the regions of the pancreas that contain its endocrine cells.

The islets of Langerhans contain the alpha cells (producing glucagon), beta cells (insulin and amylin), delta cells (somatostatin),PP cells (pancreatic polypeptide), and the epsilon cells (ghrelin).

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: Hyperplastic islets of langerhans · Hypertrophic pancreatic islets · Islet of Langerhans hyperplasia · Islets of langerhans hypertrophy · Pancreatic islet-cell hypertrophy

Pancreatic islet-cell hyperplasia

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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.