Learning Objectives
- Identify the histological appearance of mucinous glands.
- Recognize the anatomical location and size of the Bartholin’s gland.
- Understand the epithelial lining of the excretory duct.
- Distinguish between normal secretions and glandular obstruction.
Overview of Bartholin’s Gland
The Bartholin’s gland (greater vestibular gland) is located within the wall of the vagina. It is a small structure, typically measuring about 1 cm in size, and is responsible for producing lubricating mucus.
Characteristic Features
- Mucinous Glands: Composed of polygonal cells with clear, pale cytoplasm containing mucin droplets.
- Glandular Secretions: These drain via a duct that transports the mucus to the vaginal vestibule.
- Duct Epithelium: The drainage duct is lined by cuboidal to transitional epithelium, reflecting its role as a conduit.
Functional Anatomy
- Location: Found in the posterior third of the labia majora.
- Function: Provides lubrication during sexual arousal.
Clinical Relevance: Glandular Pathology
- Bartholin’s Cyst: Obstruction of the duct can lead to an accumulation of mucus, resulting in a painless swelling or cyst.
- Bartholin’s Abscess: If the cyst becomes infected (often by E. coli or N. gonorrhoeae), a painful, fluctuant abscess develops, which may require incision and drainage or marsupialization.
- Adenocarcinoma: Though rare, malignancy can arise from the mucinous cells of the gland or the transitional cells of the duct, particularly in postmenopausal women.