Intratumoral Heterogeneity, Chemoresistance and Lymph Node Landing Zone Prognosis in Testicular Tumors Based on Histopathological Characteristics.

BACKGROUND: Existing data on the histopathological correlation of testicular tumors with lymph node prognosis have been poorly explored. We aimed to investigate the relationship of the histopathological properties of testicular tumors with lymph nodes and their involvement with chemoresistance and heterogeneity of testicular tumors. METHODS: Patients with non-seminomatous germ cell tumor (NSGCT) were selected for histopathological correlation of testicular tumor with lymph nodes and its relationship with chemoresistance and heterogeneity. Histopathological and radiological parameters associated with the risk of chemoresistance and tumor progression were measured pre- and post-chemotherapy. Binomial logistic regression and Kaplan-Meier analysis were implemented to determine the predictors of progression and adverse overall patient survival. All categorical variables were analyzed using the Chi-square test, while Pearson's R coefficient determined the correlation. RESULTS: Male patients who were diagnosed with NSGCT from March 2017 to December 2018 at Guwahati Medical College, Guwahati, India, were included in this study. Lymph node groups were predominantly incriminated with the EYST or EYS groups and minimally linked with the pure E and YCS groups. Furthermore, the highest number of lymph node stations was associated with pre-chemotherapy. In salvage chemotherapy in the form of VIP, we found exciting outcomes, as approximately 41% of cases responded positively, especially in the EYS group. CONCLUSION: Our study classifies NSGCT according to the most favorable histopathological grouping and explores the tumoral response in different intrinsic and extrinsic variables. Our analysis can serve as a triumphant histopathological nomogram for a sublime management protocol to deal with the onerous histological pairing in NSGCT.

Correlation between differential renal function estimation using CT-based functional renal parenchymal volume and (99m)Tc - DTPA renal scan.

INTRODUCTION AND OBJECTIVE: Nuclear renal scan is currently the gold standard imaging study to determine differential renal function. We propose helical CT as single modality for both the anatomical and functional evaluation of kidney with impaired function. In the present study renal parenchymal volume is measured and percent total renal volume is used as a surrogate marker for differential renal function. The objective of this study is to correlate between differential renal function estimation using CT-based renal parenchymal volume measurement with differential renal function estimation using (99m)TC - DTPA renal scan. MATERIALS AND METHODS: Twenty-one patients with unilateral obstructive uropathy were enrolled in this prospective comparative study. They were subjected to (99m)Tc - DTPA renal scan and 64 slice helical CT scan which estimates the renal volume depending on the reconstruction of arterial phase images followed by volume rendering and percent renal volume was calculated. Percent renal volume was correlated with percent renal function, as determined by nuclear renal scan using Pearson coefficient. RESULTS AND OBSERVATION: A strong correlation is observed between percent renal volume and percent renal function in obstructed units (r = 0.828, P < 0.001) as well as in nonobstructed units (r = 0.827, P < 0.001). CONCLUSION: There is a strong correlation between percent renal volume determined by CT scan and percent renal function determined by (99m)TC - DTPA renal scan both in obstructed and in normal units. CT-based percent renal volume can be used as a single radiological tests for both functional and anatomical assessment of impaired renal units.

Arteriovenous malformation of ureter presenting without hematuria: An unusual presentation of a rare disease.

Genitourinary tract arteriovenous malformations are extremely rare. Most of the lesions are found either in the kidney or urinary bladder. So far, to the best of our knowledge, only five cases of arteriovenous malformation of the ureter have been reported in the literature. Here, we present, a young male, clinically presented with pain in the left flank with no other significant history. On radiological evaluation found to have left hydroureteronephrosis with stricture of the left distal ureter at the level of iliac vessel crossing. Urine routine, cytology, and cystoscopy were unremarkable. Left retrograde pyelogram showed distal ureteric stricture. Patient underwent excision of left distal ureteric stricture segment and ureteric reimplantation with psoas hitch. Histopathological examination revealed the features of arteriovenous malformation of the left ureter. The patient is asymptomatic and has no recurrence on follow-up until 12 weeks after surgery.

Concealed cysts presenting as 'Club' penis: a case report.

BACKGROUND: Penile swellings are not very common. They usually present as an obvious lesion visible and palpable either on the penile shaft, glans, or prepuce. Rarely, benign swellings may be concealed by phimosis and can present as "club" penis. CASE PRESENTATION: We report the case of a 30-year-old Indian male man who presented with the complaint of difficulty in retracting his foreskin and a club-shaped distal penis. There were palpable lumps on either side of the glans penis which were concealed by the foreskin; hence, a proper preoperative clinical diagnosis was not possible. Circumcision revealed the presence of two discrete cystic swellings from inner prepuce which were excised. Histopathology was suggestive of epidermoid cysts. CONCLUSIONS: Although epidermoid cysts are common cutaneous swellings, they are rarely seen on the penis. They generally present as a small solitary swelling on the penile surface and occurrence at multiple sites is very rare. Epidermoid cysts arising from inner prepuce, hiding within and presenting as club penis have not been reported. Thus, benign lumps should be considered an etiology for phimosis.

Mixed epithelial and stromal tumour with extension to vesicoureteric junction.

Mixed epithelial and stromal tumour (MEST) is an uncommon renal tumour with a tendency to protrude into the collecting system. We present a 50-year-old woman with a renal tumour extending up to the vesicoureteric junction (VUJ) who was suspected to have an upper tract transitional cell carcinoma for which a nephroureterectomy was performed. Histopathologic examination revealed a MEST arising from the kidney and extending up to the VUJ. To the best of our knowledge, this is the first report of a renal MEST with extension to the VUJ.

Rare case of gangrene of penis in a patient with chronic kidney disease on dialysis.

Gangrene of the penis in patients with chronic kidney disease undergoing haemodialysis is a rare occurrence. Such patients often have associated comorbidities such as type II diabetes mellitus and systemic hypertension, along with secondary hyperparathyroidism leading to dystrophic calcification. These conditions accelerate the process of atherosclerosis, which, along with calcium deposition, causes partial or complete obstruction of the blood vessel lumen, leading to ischaemic necrosis at the tip of the penis. This adds to the pre-existing morbidity and mortality in such patients. In most cases, appropriate medical management is advocated to prevent the deposition of calcium in the lumen.

Combining Prostate-Specific Antigen Parameters With Prostate Imaging Reporting and Data System Score Version 2.0 to Improve Its Diagnostic Accuracy.

BACKGROUND: Any non-invasive test that can predict the absence of prostate cancer (PCa) or absence of clinically significant PCa (CSPCa) is necessary, as it can reduce the number of unnecessary biopsies in patients with gray zone prostate-specific antigen (PSA, 4 - 10 ng/mL). This study evaluated the diagnostic performance of free PSA% and PSA density (PSAD), and Prostate Imaging Reporting and Data System (PIRADS) score (version 2.0) alone and combined in predicting CSPCa in patients with PSA between 4 and 10 ng/mL. METHODS: This prospective study included a total of 104 consecutive patients with lower urinary tract symptoms (LUTS) and serum PSA between 4 and 10 ng/mL, with or without abnormal digital rectal examination (DRE) findings or any hypoechoic lesion on ultrasound sonography of prostate and without prior transrectal ultrasound (TRUS) biopsy of prostate. PIRADS score was calculated using multi-parametric magnetic resonance imaging (mp-MRI) before TRUS biopsy of prostate. Relationships among PIRADS score, PSAD, free PSA% and presence of CSPCa in TRUS biopsy were statistically analyzed. RESULTS: In patients with CSPCa, significantly higher median age (P = 0.001), PSA level (P < 0.001), PSAD (P < 0.001) and significantly lower prostate volume (P < 0.001) and free PSA% were observed as compared to patients with non-CSPCa. Significantly higher proportion of patients with CSPCa showed PIRADS positive test compared to those with non-CSPCa (86.4% vs. 53.3%, P < 0.001). Cut-off values for PSAD and free PSA% were 0.12 ng/mL2 and 25%, respectively. Age, PSAD and free PSA% were significant predictors of PCa, while age and PSAD were significant predictors of CSPCa. Criteria 2, 3 and 4 demonstrated higher specificity and positive predictive value (PPV) in predicting CSPCa as compared to criterion 1. The overall accuracies of criterion 1, 2, 3 and 4 were 64.42%, 85.58%, 80.77% and 79.81%, respectively. The area under the curve (AUC) values of criterion 2, 3 and 4 were higher (0.827, 0.732 and 0.792) than criterion 1 (0.665). CONCLUSION: Using PIRADS score for predicting CSPCa as a screening test, criteria 2, 3 and 4 have much higher diagnostic performance and present accuracy of mp-MRI to predict CSPCa can be increased with addition of PSAD and free PSA%.

Case report: renal infarct mimicking renal mass: further rationale for minimally invasive management.

A 55-year-old man presented with an exophytic asymptomatic right renal lower-pole mass simulating a renal-cell carcinoma. He underwent retroperitoneoscopic partial nephrectomy, and histopathologic examination revealed a chronic renal infarct with calcifications. We report this case to stimulate the inclusion of focal chronic renal infarct in the differential diagnosis of asymptomatic renal masses, as well as to advocate a minimally invasive approach to appropriate renal lesions.

Role of primary chemotherapy in management of large tumors of undescended testis: Our experience.

OBJECTIVE: This study aimed to share our experience with tumors of undescended testis (UDT) and to assess the impact of primary cisplatin-based chemotherapy on such tumors. MATERIALS AND METHODS: This study included the cases of tumor in UDT from February 2005 to December 2011. Evaluation of the cases was done with proper clinical examination and laboratory investigations along with tumor markers (alfa-feto protein, beta-human chorionic gonadotropin, lactate dehydrogenase) and contrast-enhanced computed tomography abdomen. Fine needle aspiration cytologywas done in all cases. Primary chemotherapy with three cycles of bleomycin, etoposide, and cisplatin regimen at three weekly intervals started in all cases. Response to treatment was seen after four weeks of the third cycle. RESULTS: Fourteen cases (12.5%) of germ cell tumor in UDT out of 112 cases of germ cell tumor of the testis were included. The age ranged from 16-60 years. Histological diagnosis was pure seminoma in all cases. After three cycles of BEP regime, complete response was seen in 11 cases and partial response in three cases where the residual tumor was excised along with retroperitoneal lymph node dissection RPLND. Of the 14 cases, 13 were in regular follow-up and one was lost to follow-up. All on follow-up were doing well without recurrence till now. CONCLUSION: Surgical removal of the primary tumor in UDT with or without bulky metastasis is complicated. Primary chemotherapy with cisplatin-based regimen is a good option in such cases.

Novel technique for removal of misdirected laparoscopic Weck clips.

The Weck clip has emerged as an attractive option for laparoscopic vascular control. It is secure and easy to use. However, once fired, the clip can be difficult to remove. We describe a novel technique for the safe removal of misdirected Weck clips using the Harmonic scalpel.

Unusual cause of hematuria.

The leech is an invertebrate which has the habit of entering the anatomical orifices of man and animals. During the process of sucking blood it releases an anticoagulant and causes continuous bleeding from the bite site. A leech as a cause of gross hematuria is unusual. We present a case of a leech in the bladder as a cause of gross hematuria.

Leiomyoma of the female urethra. A case report.

We report a case of leiomyoma of the female urethra and a review of the literature. A mass protruding from the urethral meatus caused voiding difficulty and dysuria. Uroflowmetry showed an obstructive pattern with low maximum urine flow. Cystourethroscopy revealed a mass arising from lateral urethral wall extending from meatus up to 2 cm proximally. Histopathological studies confirmed urethral leiomyoma. Surgery completely resolved the original symptoms.

Antibiotic prophylaxis for transrectal needle biopsy of the prostate: a randomized controlled study.

OBJECTIVES: To determine the effect of antibiotic prophylaxis on infective complications after transrectal needle biopsy of the prostate. PATIENTS AND METHODS: Between June 1996 and September 1998, 231 patients who satisfied the inclusion and exclusion criteria entered the study; the patients were randomized into three groups. Each patient underwent transrectal needle biopsy of the prostate after a cleansing enema at 06:00 hours. Patients in group 1 (75) then received a placebo tablet twice a day for 3 days; those in group 2 (79) were given a single dose of ciprofloxacin (500 mg) and tinidazole (600 mg), while those in group 3 (77) were given the same combination twice a day for 3 days. Urine cultures were obtained 48 h after the biopsy and blood cultures only from patients who developed fever. The complications (categorized as infective or noninfective) occurring in the three groups were compared using the chi-square test. RESULTS: Noninfective complications included were lower urinary tract symptoms, rectal bleeding, haematuria and perineal pain. The infective complications included urinary tract infection and fever. There was no significant difference among the three groups in noninfective complications (27, 29 and 31 in groups 1-3, respectively) but the incidence of infective complications (19, six and eight, respectively) was significantly higher in group 1 (P = 0.003). However, the difference was significant only for urinary tract infection (P = 0.01) and not for fever. CONCLUSIONS: In selected patients a single dose of ciprofloxacin-tinidazole is adequate prophylaxis for transrectal needle biopsy of the prostate. The present urinary infection rate was higher if no antibiotics were used. Continuing the antibiotic prophylaxis for 3 days offered no benefit over single-dose prophylaxis.

Core through urethrotomy with the neodymium:YAG laser for posttraumatic obliterative strictures of the bulbomembranous urethra.

PURPOSE: We studied the safety and efficacy of core through urethrotomy with the neodymium (Nd):YAG laser for posttraumatic obliterative strictures of the bulbomembranous urethra. MATERIALS AND METHODS: Eight patients a mean of 27.5 years old with posttraumatic (motor vehicle accidents) obliterative strictures of the bulbomembranous urethra were treated from May to December 1997. Laser treatment selection criteria were stricture length 2.0 cm. or less, good alignment between the urethral ends and no history of rectal injury or erectile dysfunction. All patients underwent core through urethrotomy with the Nd:YAG contact laser delivered with the 600 micro bare fiber at 15 to 25 W. The urethrotomy was guided only by a metal sound introduced through the suprapubic tract. RESULTS: Blood loss was negligible and excellent visualization was maintained throughout the procedure. Operating time ranged from 45 to 70 minutes. There were no perioperative complications. Hospital stay was 24 hours in the first case and 6 to 8 hours in subsequent cases. All patients returned to work within 5 days. Urethroscopy was performed 4 and 12 weeks after catheter removal in all patients. Only 1 patient required repeat internal urethrotomy. Voiding cystourethrography revealed a stricture-free urethra in 7 cases. At last followup 7 to 14 months (mean 10.25) after the procedure mean maximum flow rate was 18.6 ml. per second (range 16.5 to 22.4) in the patients who were stricture-free and 11.8 ml. per second in 1 with recurrent stricture. CONCLUSIONS: Core through urethrotomy with the contact Nd:YAG laser seems to be a safe and effective treatment option for select strictures. The hospital stay is remarkably short and complications are negligible. Re-stricture rates are likely to be low but more experience and longer follow-up are needed.

Infected congenital urethral diverticulum in an adult male.

Congenital anterior urethral diverticulum is a rare anomaly. The majority present in infancy with urinary obstruction. Those who present beyond infancy do so on account of recurrent urinary tract infection or dribbling. We present a case of congenital anterior urethral diverticulum manifesting in adulthood with suppuration in the diverticulum.

Polymerase chain reaction in clinically suspected genitourinary tuberculosis: comparison with intravenous urography, bladder biopsy, and urine acid fast bacilli culture.

OBJECTIVES: To evaluate the role of urinary polymerase chain reaction (PCR) in the detection of Mycobacterium tuberculosis (MTb) in patients with a clinical suspicion of genitourinary tuberculosis (GUTB) and to compare its sensitivity with intravenous urography (IVU), bladder biopsy, and urine culture for acid fast bacilli (AFB). METHODS: The study was carried out between September 1997 and December 1998 in 42 patients with a clinical suspicion of GUTB. Their clinical features, organ involvement, and investigation results were studied. The diagnostic yield of urinary PCR for MTb and its sensitivity in comparison with routine urine AFB culture, bladder biopsy, and IVU were assessed. RESULTS: There were 25 male and 17 female patients, with a mean age of 31.04 years. Patients suspected of having GUTB most often presented with irritative voiding symptoms. Two patients had abnormal renal parameters. Of the 42 patients clinically suspected of having GUTB, radiologic abnormalities suggestive of GUTB were found in 37 (88.09%); MTb was isolated in the urine AFB culture in 13 (30.95%); bladder biopsy was positive in 11 (45.83%); and urinary PCR for MTb was positive in 34 cases (80.95%). Of 35 cases of proven GUTB, IVU was suggestive of the diagnosis in 32 (91.42%) and MTb was isolated in the urine AFB culture in 13 cases (37.14%). Bladder biopsy was positive in 11 (45. 83%) of 24 patients in whom biopsy was taken, and urinary PCR for MTb was positive in 33 (94.29%). CONCLUSIONS: A high index of suspicion is necessary for a diagnosis of GUTB. In clinically suspected cases, IVU may be suggestive of GUTB, but it is not specific. In the present study, IVU was suggestive in 88.09% of patients. MTb was isolated in the urine AFB culture in only 37.14% of patients, and bladder biopsy was positive in 45.83%. Urinary PCR for MTb was the most sensitive indicator and was positive in 94.29% of patients. It is evident from this series that PCR provides a much faster diagnosis of urinary MTb. It is a rapid, sensitive, and specific diagnostic method and avoids a delay in starting treatment.