The seminal colliculus (Latincolliculus seminalis), or verumontanum, of the prostatic urethra is a landmark distal to the entrance of the ejaculatory ducts (on both sides, corresponding vas deferens and seminal vesicle feed into corresponding ejaculatory duct). Verumontanum is translated from Latin to mean 'mountain ridge', a reference to the distinctive median elevation of urothelium that characterizes the landmark on magnified views. Embryologically, it is derived from the uterovaginal primordium. The landmark is important in classification of several urethral developmental disorders. The margins of seminal colliculus are the following:
The verumontanum is an important anatomic landmark for pathology in a congenital anomaly known as posterior urethral valves, in which there is a developmental obstruction of the urethra in newborn male infants.[1] Urethral carcinoid tumors have been reported at the verumontanum.[2] The structure tends to migrate caudally, or downward, in hypospadia disorders and is then seen in the bulbous, or penile portion of the urethra.[3]
Prostatic utricleedit
The prostatic utricle (embryologic derivative of urogenital sinus and the male vestigial equivalent of vagina) arises from the urethra at the level of the verumontanum and projects posteriorly. This blind ending structure can be associated with hypospadias. This is distinct from a Cowper duct syringocele, which arises at the bulbous urethra.
Referencesedit
^"Posterior Urethral Valve. Emedicine, Radiology". eMedicine. July 18, 2010. Retrieved July 18, 2010.
^Maxwell Smith, M Scott Lucia, Priya N Werahera and Francisco G La Rosa Carcinoid tumor of the verumontanum (colliculus seminalis) of the prostatic urethra with a coexisting prostatic adenocarcinoma: a case report Journal of Medical Case Reports 2010, 4:16
^F Ikoma, H Shima. 1991. Caudal migration of the verumontanum. Journal of Pediatric Surgery. 26: 7, 858-861.
External linksedit
Anatomy photo:44:05-0202 at the SUNY Downstate Medical Center — "The Male Pelvis: The Prostate Gland"
pelvis at The Anatomy Lesson by Wesley Norman (Georgetown University) (malebladder)
figures/chapter_34/34-3.HTM: Basic Human Anatomy at Dartmouth Medical School
December 15, 2023
seminal, colliculus, seminal, colliculus, latin, colliculus, seminalis, verumontanum, prostatic, urethra, landmark, distal, entrance, ejaculatory, ducts, both, sides, corresponding, deferens, seminal, vesicle, feed, into, corresponding, ejaculatory, duct, veru. The seminal colliculus Latin colliculus seminalis or verumontanum of the prostatic urethra is a landmark distal to the entrance of the ejaculatory ducts on both sides corresponding vas deferens and seminal vesicle feed into corresponding ejaculatory duct Verumontanum is translated from Latin to mean mountain ridge a reference to the distinctive median elevation of urothelium that characterizes the landmark on magnified views Embryologically it is derived from the uterovaginal primordium The landmark is important in classification of several urethral developmental disorders The margins of seminal colliculus are the following the orifices of the prostatic utricle the slit like openings of the ejaculatory ducts the openings of the prostatic ductsSeminal colliculusSeminal vesicle and ampullae of ductus deferentes seen from the front The male urethra laid open on its anterior upper surface DetailsIdentifiersLatinColliculus seminalis verumontanumTA98A09 4 02 008TA23448FMA74363Anatomical terminology edit on Wikidata Dissection of prostate showing the prostatic urethra with the seminal colliculus on the posterior wall Contents 1 Posterior urethral valves 2 Prostatic utricle 3 References 4 External linksPosterior urethral valves editThe verumontanum is an important anatomic landmark for pathology in a congenital anomaly known as posterior urethral valves in which there is a developmental obstruction of the urethra in newborn male infants 1 Urethral carcinoid tumors have been reported at the verumontanum 2 The structure tends to migrate caudally or downward in hypospadia disorders and is then seen in the bulbous or penile portion of the urethra 3 Prostatic utricle editThe prostatic utricle embryologic derivative of urogenital sinus and the male vestigial equivalent of vagina arises from the urethra at the level of the verumontanum and projects posteriorly This blind ending structure can be associated with hypospadias This is distinct from a Cowper duct syringocele which arises at the bulbous urethra References edit Posterior Urethral Valve Emedicine Radiology eMedicine July 18 2010 Retrieved July 18 2010 Maxwell Smith M Scott Lucia Priya N Werahera and Francisco G La Rosa Carcinoid tumor of the verumontanum colliculus seminalis of the prostatic urethra with a coexisting prostatic adenocarcinoma a case report Journal of Medical Case Reports 2010 4 16 F Ikoma H Shima 1991 Caudal migration of the verumontanum Journal of Pediatric Surgery 26 7 858 861 External links editAnatomy photo 44 05 0202 at the SUNY Downstate Medical Center The Male Pelvis The Prostate Gland pelvis at The Anatomy Lesson by Wesley Norman Georgetown University malebladder figures chapter 34 34 3 HTM Basic Human Anatomy at Dartmouth Medical School Retrieved from https en wikipedia org w index php title Seminal colliculus amp oldid 1116682764, wikipedia, wiki, book, books, library,
