Splenogonadal fusion

Splenogonadal fusion is rare congenital pathology in which splenic tissue is fused to a gonad (testis or ovary).

General

• May mimic a testicular tumour.
• Usually diagnosed by pathology.

Subclassification:

• Continuous - attached to orthotopic spleen.
• Discontinuous - no attachment to orthotopic spleen.

Gross

• Mass lesion.

Image

• 

  Testicular-splenic fusion. (WC)

Microscopic

Features:

• Benign splenic tissue.
• Benign gonadal tissue (testis or ovary).

DDx:

• Intratubular germ cell neoplasia (ITGCN) - testis only.
• Germ cell tumour.
• Other testicular or ovarian tumours.

See also

• Testis.
• Ovary.