Cystic Vestibular Gland Greatly Distended.
The duct of the right vestibular gland (Bartholin gland) has become occluded leading to accumulation and distention. Here the distention is large enough to part the lips of the vulva, and the mass may be mistaken for an early prolapse of the vagina. Treatment of this infrequently occurring malady is by incision and drainage. Vestibular glands are the homologues of the bulbo-urethral glands in the male.
Roberts SJ (1973)