Follistatin is a binding protein for the activin and inhibin family of hormones, regulating their biological activity. In the male reproductive tract, the interaction of these factors is likely to be involved in the regulation of the proliferation of several cell types. We have investigated the presence of follistatin and activin A in seminal plasma using specific immunoassays and have localize...

The association of a seminal vesicle cyst with ipsilateral renal agenesis was initially reported in 1914 by Zinner, and it is a very rare congenital anomaly. The association of this anomaly with an ectopic ureter entering the seminal vesicle cyst is even less common. In these cases, clinical symptoms appear in patients 15 years or older due to the distention of the seminal vesicle caused by the...

Seminal vesicle malformations are a rare cause of obstructive azoospermia, often associated with other internal genitalia and upper urinary tract birth defects. We report 5 new cases of seminal vesicle agenesis in men presenting with hypospermia and azoospermia. Imaging showed seminal vesicle unilateral agenesis in all patients. The remaining seminal vesicle was hypoplastic in 3 cases, dilated ...

Introduction: Schwannomas are benign tumors arising from the cells responsible for producing the myelin sheath surrounding peripheral nerve cells. Presentation of case: A patient presented with intermittent bloody stools and diarrhea. Following a work-up, including colonoscopy, computed tomography (CT) scan, and endorectal ultrasound and biopsy, he was found to have a clinical T3N1 rectal adeno...

PURPOSE A seminal vesicle cyst in combination with ipsilateral renal agenesis is rarely encountered. We present cases of this disease entity with symptoms, which were treated with a laparoscopic approach as a minimally invasive surgical treatment. MATERIALS AND METHODS We experienced 4 patients with seminal vesicle cysts and ipsilateral renal agenesis. The mean age was 45.8 years. Chief compl...

Benign tumors of the Seminal vesicle that occur more commonly then malignant tumors. Cystadenoma is an extremely rare benign tumor of the seminal vesicle. Management of these tumors remains debatable due to the limited data in the literature. We present a cystadenoma of the seminal vesicle was resected using an open transvesical approach. A Sonography reported enlarged prostate with volume of 5...

Schwannomas, not uncommon in the head and neck, rarely occur in the pelvis. Here we describe a seminal vesicle schwannoma, the first of its kind successfully excised via robotic surgery. An otherwise well 62 year-old male presented with a complaint of rectal pain. Colonoscopy identified a mass effect on the rectum, suggesting an external lesion. A computed tomography scan revealed a right semin...

Ejaculatory duct obstruction (EDO) underlies 1-5% of male infertility, although the diagnosis of EDO can be complex, treatment is well established and can be very effective. Part of reason that this condition probably is underdiagnosed, is because of its rarity, subtle presentation and the concomitantly low index of suspicion held by physicians. The causes of EDO are divided into congenital and...

A 64-year-old man underwent a radical cystoprostatectomy for intravesical bacillus Calmette-Guerin (BCG) therapy-resistant, recurrent muscle invasive transitional cell carcinoma (TCC) of the urinary bladder. He had a history of left radical nephroureterectomy for a papillary TCC of the left ureter 10 months ago. On microscopic examination, not only multifocal residual papillary TCCs in the urin...