Rare diseases · Sign or symptom

Epididymal cyst

HP:0030424

What it means

A smooth, extratesticular, spherical cyst in the head of the epididymis.

Diagnosis of epididymal cyst can be confirmed by scrotal ultrasound. Patients can present with scrotal mass or pain. Epididymal cysts are usually between 3-30 mm in diameter. In some cases they can resolve spontaneously.

Rare diseases that can present with this4

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: Epididymal cysts

Epididymal cyst

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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.