Tunica Vaginalis pathology

Congenital:
Patent processus vaginalais:
Spermatic cord hydrocele: Funicular hydrocele, encysted hydrocele
Inguinoscrotal hernia

Infection:
Scrotal abscess, pyocele
Scrotal tuberculosis
Scrotal scistosomiasis

Inflammation:
Acquired hydrocele
Scrotal pearls/ calculi
Fibrous pseudotumour of scrotum: nodular and diffuse types

Trauma:
Haematocele
Scrotal calculi
Fibrous pseudotumour
Scrotal tunical cyst

Tumour:
Adenomatoid tumour
Scrotal tunica cyst
Mesothelioma
Lipoma
Leiomyoma
Liposarcoma

Reference:
http://radiographics.rsna.org/content/29/7/2017.abstract
Leimyosarcoma