"Pseudocysts of the paraurethral female Skene's glands"

Anatomy and Physiology
The Skene's glands, also known as Guerin's glands, Schuller's ducts or Almasoff's channels , is believed to be the female equivalent of the male prostate gland . In normal conditions they are few millimeters in size.
Their embryogenesis follows, probably from 5th/8th week of life, the evolution of more caudal portions of the Muller ducts,
urogenital sinus, primitive urethra, vagina and cervix.
The volume of these structures (Skene's glands) may increase during pregnancy, usually regress with menopause and might contain calcareous concretions.
The anatomical and functional significance of these glands, sited on sensory pre-vaginal area, was first described by Grafenberg in 1950. More commonly known as "G spot" (Scheme) is still the subject of specific clinical research.
The secretion produced by these glands reach the urethra and the external vulvar and genital area.