Testis & paratestis
Nonneoplastic lesions
Cysts
Authors: Alcides Chaux, M.D., Antonio L. Cubilla, M.D.
Last author update: 1 May 2010
Last staff update: 26 May 2023 (update in progress)
Copyright: 2002-2023, PathologyOutlines.com, Inc.
PubMed Search: Tunica albuginea cysts
Table of Contents
Definition / general | Sites | Etiology | Clinical features | Case reports | Gross description | Gross images | Microscopic (histologic) description | Microscopic (histologic) imagesCite this page: Chaux A, Cubilla AL. Cysts. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/testiscysts.html. Accessed May 30th, 2023.
Definition / general
- Epidermoid cysts, mesothelial cysts, cysts of tunica albuginea, rete testis, efferent ducts or testicular parenchyma have been described
- Benign cystic lesions that may be confused with testicular tumors
- Epithelium is cuboidal to columnar, variable cilia
- Tunica albuginea cysts, described in the rest of this topic, are probably of mesothelial origin (Arch Pathol Lab Med 1989;113:902)
Sites
- Anterior and lateral aspect of the testis
Etiology
- Mesothelial rests trapped during embryonic development (J Urol 1975;114:730)
Clinical features
- Tumor or painful swelling
- Incidental finding in some cases
Case reports
- Report of 3 cases (Arch Androl 2004;50:89)
Gross description
- Cystic lesions with clear fluid
- Connected to the tunica albuginea
Gross images
AFIP images
Cyst of tunica albuginea
Images hosted on other servers:
61 year old man
Microscopic (histologic) description
- Cysts lined by low cuboidal or columnar cells, may be ciliated
- Gland-like structures in fibrous walls and tunica albuginea
- May contain psammoma bodies (Int J Urol 2001;8:520)
Microscopic (histologic) images
AFIP images
Cyst of tunica albuginea
Images hosted on other servers:
Microscopic findings
