Isolated splenogonadal fusion

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Isolated splenogonadal fusion

ORPHA:457083Morphological anomaly

Also called SGF

What it is

A rare, non-syndromic visceral malformation characterized by an abnormal, continuous or discontinuous attachment of the spleen to the gonad, epididymis or vas. Continuous type has a direct connection between spleen and the gonad, whereas discontinuous type indicates gonadal tissue fused with an accessory spleen or ectopic spleen tissue without connection to the principal spleen. Males typically present with a scrotal mass or as an incidental finding during the management of cryptorchidism, testicular tumors or inguinal hernia. In females this is usually an incidental finding during laparotomy.

Key facts

Age of onset
Antenatal, Neonatal
Inheritance
No data available
Classified as
Morphological anomaly

Signs and symptoms

These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.

ICD-10 codes

Q89.0filed under a broader ICD-10 category — shared with 1 other rare disease

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Cross-references

MONDO 0018703UMLS C0266636

Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.

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