[Urethral sphincter (G point). Anatomo-clinical correlations].
On the basis of 36 cases in sexology, the authors sought the site of the G point on the basis of clinical, ultrasonographic and anatomical findings.


RESULTS
examination of pleasant vaginal sensitivity. Discovered by patients unaware of it. Recognised by patients aware of it. Ultrasonographic findings: localization of a hypoechogenic zone, above all in the lower third of the vagina, corresponding with pleasant vaginal sensitivity and changing after digital vaginal examination and contractions of the levators. Anatomical findings: dissection of the anterior perineum of cadavers seeking this ultrasonographic hypoechogenic structure. These various approaches lead the authors to locate the G point at the urethral sphincter, as was suggested by Grafenberg in 1950, and to situate vaginal and clitoris sensitivity in the same anatomical entity: the urethro-clitorido-vulval entity.
Lenck
L C
LC
Laboratoire d'Anatomie, Faculté de Médecine, Clermont Ferrand.
Vanneuville
G
G
Monnet
J P
JP
Harmand
Y
Y
D002987:Clitoris / Q000033:anatomy & histology* / Q000000981:diagnostic imaging / Q000502:physiology; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D010808:Physical Examination; D012723:Sex; D014463:Ultrasonography; D014521:Urethra / Q000033:anatomy & histology* / Q000000981:diagnostic imaging / Q000502:physiology; D001743:Urinary Bladder / Q000033:anatomy & histology* / Q000000981:diagnostic imaging / Q000502:physiology; D014621:Vagina / Q000033:anatomy & histology* / Q000000981:diagnostic imaging / Q000502:physiology
Sphincter urétral (point G). Corrélations anatomo-cliniques.