Case Reports in Urology最新文献

{"title":"Testicular Regression Syndrome Presenting as a Nonpalpable Undescended Testis in Adulthood: A Case Report and Literature Review.","authors":"Bartholomeo Nicholaus Ngowi, Alex Mremi, Ester Lekei, Orgeness Mbwambo, Jay Lodhia","doi":"10.1155/criu/3994628","DOIUrl":"10.1155/criu/3994628","url":null,"abstract":"<p><p>Vanishing testis is also known as testicular regression syndrome, which is atrophy and disappearance of one testis during fetal life. Vanishing testis accounts for < 5% of undescended testis. Vanishing testis is a rare condition that must be remembered in the differential diagnosis of undescended testis. We report a case of vanishing testis in a young man of 29 years old who underwent inguinal exploration for nonpalpable undescended testis. There was no obvious testis at exploration and instead the vas deferens together with cord vessels ended blindly distally. The spermatic cord was excised and the patient fared well postoperatively.</p>","PeriodicalId":30323,"journal":{"name":"Case Reports in Urology","volume":"2026 ","pages":"3994628"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13045270/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147623874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Vascular Involvement in Emphysematous Pyelonephritis.","authors":"Dana Greenberg, Ronen Rub, Rami Mattar, Yoav Avidor","doi":"10.1155/criu/1636315","DOIUrl":"10.1155/criu/1636315","url":null,"abstract":"<p><p>Emphysematous pyelonephritis is a life-threatening, rapidly progressive necrotizing infection, characterized by the presence of gas in the affected tissues. Following a rare emphysematous pyelonephritis case which involved gas in the kidney and inferior vena cava vessels, we aimed to review the literature related to diagnosis and treatment. The extension of gas into adjacent vascular structures, though rare, may represent a more fulminant diseases state and warrants particular clinical attention. This case highlights the importance of timely diagnosis and intervention in emphysematous pyelonephritis.</p>","PeriodicalId":30323,"journal":{"name":"Case Reports in Urology","volume":"2026 ","pages":"1636315"},"PeriodicalIF":0.0,"publicationDate":"2026-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13292178/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148333648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Xanthogranulomatous Pyelonephritis Presenting as Significant Hydronephrosis in an Adult Male Who Was Managed with Robotic-Assisted Radical Nephrectomy: A Case Report and Current Literature Review.","authors":"Robert W Jarrett Berends, Christopher Pulford, Charla Miller, Emiley O'Pry, Richard Eames, Kenneth Shockley, Thomas Maatman","doi":"10.1155/criu/2534184","DOIUrl":"10.1155/criu/2534184","url":null,"abstract":"<p><p>Xanthogranulomatous pyelonephritis (XGP) is an infection of the kidney that often results from a chronic obstruction, such as a kidney stone. We present a patient with a massively enlarged left renal pelvis with minimal renal parenchyma presenting as an end stage ureteropelvic junction obstruction (UPJO). The patient was afebrile during his time in the emergency room (ER). Urinalysis was significant for trace leukocyte esterase and 11-20 WBCs. His creatinine during his ER encounter was 1.02. Due to his normal creatinine, a percutaneous nephrostomy tube was not placed. Preoperatively, we did not suspect XGP or pyonephrosis given his prior ER results. Shortly after the patient's ER presentation he was taken to surgery and final pathology revealed XGP. We were able to successfully perform a robotic-assisted laparoscopic radical nephrectomy for stage I XGP safely, which included drainage of over two liters of pyogenic urine during the surgery.</p>","PeriodicalId":30323,"journal":{"name":"Case Reports in Urology","volume":"2026 ","pages":"2534184"},"PeriodicalIF":0.0,"publicationDate":"2026-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12974327/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147436329","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unfused Crossed Renal Ectopia With Aberrant Vasculature: A Case Report.","authors":"Adam J Ferguson, Matthew Janiga","doi":"10.1155/criu/1244129","DOIUrl":"10.1155/criu/1244129","url":null,"abstract":"<p><p>An 80-year-old man presenting with gross hematuria was diagnosed with muscle-invasive bladder cancer. Ten years prior, based on an ultrasound performed for chronic renal insufficiency, he was told he had a congenitally absent left kidney. Office cystoscopy showed a large bladder tumor. Following cystoscopy, he underwent a CT-urogram. This study showed that he, in fact, had left-to-right unfused crossed renal ectopia. Unfused crossed renal ectopia is an extremely rare abnormality that is usually asymptomatic and typically incidentally diagnosed. Crossed renal ectopia is a result of improper migration of the metanephric blastema and ureteric bud development resulting in a contralateral ectopic kidney with aberrant vascularization. The ureter crosses the midline and inserts into the orthotopic side of the bladder. Special consideration of the vascularization of unfused crossed ectopic kidneys is necessary prior to surgery or radiation therapy.</p>","PeriodicalId":30323,"journal":{"name":"Case Reports in Urology","volume":"2026 ","pages":"1244129"},"PeriodicalIF":0.0,"publicationDate":"2026-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12966350/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147378848","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Undifferentiated Castration-Resistant Prostate Cancer Successfully Treated With Carboplatin and Paclitaxel.","authors":"Masayuki Sano, Masaki Shimbo, Shin Ohgita, Naoki Kanomata, Kazunori Hattori, Fumiyasu Endo","doi":"10.1155/criu/1722086","DOIUrl":"10.1155/criu/1722086","url":null,"abstract":"<p><strong>Introduction: </strong>Castration-resistant prostate cancer (CRPC) is a heterogeneous and aggressive disease with limited treatment options, particularly in poorly differentiated cases that lack androgen receptor expression and progress rapidly even under conventional therapies. Here, we present a rare case of poorly differentiated CRPC that exhibited a remarkable response to carboplatin and paclitaxel therapy.</p><p><strong>Case presentation: </strong>A 53-year-old man with metastatic, castration-sensitive prostate cancer (cT3bN1M1b, PSA 9.39 ng/mL, Gleason 4 + 5) underwent androgen deprivation therapy using bicalutamide and leuprorelin. Nine months later, he developed CRPC, despite undetectable PSA levels. A supraclavicular lymph node biopsy revealed a poorly differentiated carcinoma. Immunohistochemistry was negative for PSA and NKX3.1 and positive for CK5/6. These results excluded neuroendocrine carcinoma and supported a diagnosis of undifferentiated carcinoma. Systemic chemotherapy with carboplatin (area under the curve, five) and paclitaxel (200 mg/m²) was initiated. Partial remission was achieved at 2 months, and complete remission was confirmed at 18 months. After 73 cycles, chemotherapy was discontinued, and the patient has remained in remission during follow-up.</p><p><strong>Conclusion: </strong>This case highlights the potential efficacy of carboplatin and paclitaxel in treating poorly differentiated CRPC, suggesting the need for further investigation into platinum-based regimens for aggressive prostate cancer variants.</p>","PeriodicalId":30323,"journal":{"name":"Case Reports in Urology","volume":"2026 ","pages":"1722086"},"PeriodicalIF":0.0,"publicationDate":"2026-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12949079/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147327249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Management of Prolonged Ischemic Priapism: A Case Series and Critical Analysis of Early Penile Prosthesis Implantation.","authors":"Juan Eduardo Rios Rodriguez, Déborah Cristina Andrade Neves, Alexandre Gilberto Silva, Paulo Afonso Lopes Lange, Felipe Nogueira Clementoni, Alexandre Kapteinat Lima, Bárbara Loeser Faro, Luciano Carneiro Stunitz, Marcelo Alves Aranha, Ruimário Machado Coelho, Gustavo Marquesine Paul","doi":"10.1155/criu/4257471","DOIUrl":"10.1155/criu/4257471","url":null,"abstract":"<p><strong>Introduction: </strong>Priapism is a condition characterized by prolonged erections lasting longer than 4 h, classified as ischemic and nonischemic. This case series is aimed at reporting the therapeutic approaches employed and the outcomes observed in patients with prolonged priapism.</p><p><strong>Cases description: </strong>We reported seven consecutive cases of prolonged priapism managed by the authors. Collected data included duration of priapism, interventions performed, and posttreatment outcomes. In Cases 1 and 2, drainage procedures and shunts were ineffective, resulting in erectile dysfunction. Cases 3 and 4 involved the implantation of semirigid prostheses after 6 and 40 days. In Case 5, an infectious complication occurred following prosthesis implantation in a patient with previous distal shunts. Case 6 demonstrated a patient with priapism had success with early prosthesis implantation. Case 7 described a patient with cocaine-induced priapism received a prosthesis on the sixth day.</p><p><strong>Discussion: </strong>The management of ischemic priapism directly depends on the time elapsed since the onset of symptoms. After 48 h, necrosis of the corpora cavernosa becomes inevitable, and surgical shunt procedures show limited efficacy. Early implantation of penile prostheses is an effective strategy to avoid late complications such as penile fibrosis. However, the decision must consider risks such as infection and prosthesis extrusion. Shunt procedures prior to penile implantation should be indicated with caution.</p><p><strong>Conclusion: </strong>The implantation of penile prostheses is a safe and effective therapeutic option for prolonged priapism. Excessive surgical manipulation of the penis with attempts at cavernous shunting in these cases often provides no benefit and may increase the risk of prosthesis infectious complications.</p>","PeriodicalId":30323,"journal":{"name":"Case Reports in Urology","volume":"2026 ","pages":"4257471"},"PeriodicalIF":0.0,"publicationDate":"2026-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12927970/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147285219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Uncommon Presentation of Primary Bladder Signet Ring Cell Carcinoma With Peritoneal Carcinomatosis: A Rare Case Report.","authors":"Jean Paule Joumaa, Kelly Katherine Karam, Joya Ghaleb, Hilda E Ghadieh, Alaa Korhani","doi":"10.1155/criu/5584765","DOIUrl":"10.1155/criu/5584765","url":null,"abstract":"<p><p>Primary signet ring cell carcinoma (SRCC) of the bladder is an exceptionally rare and aggressive malignancy, accounting for only 0.12%-0.6% of all bladder cancers. This case report describes a 54-year-old female who presented with urinary incontinence and abdominal pain, initially misdiagnosed as a urinary tract infection. Imaging revealed suspicious bladder findings, and subsequent cystoscopy with transurethral resection identified SRCC, later confirmed by immunohistochemistry (PD-L1 positive, CDX-2/ER negative). Despite peritoneal carcinomatosis, the patient responded to cisplatin/gemcitabine chemotherapy and immunotherapy, demonstrating tumor shrinkage on follow-up imaging. This case highlights the diagnostic challenges of SRCC due to its nonspecific symptoms and potential histological overlap with other metastatic gastrointestinal tumors. Early recognition and a multidisciplinary approach are critical for improving patient outcomes.</p>","PeriodicalId":30323,"journal":{"name":"Case Reports in Urology","volume":"2026 ","pages":"5584765"},"PeriodicalIF":0.0,"publicationDate":"2026-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12867003/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146120353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spontaneous Bladder Rupture during Vaginal Delivery.","authors":"Diogo Carmali, Júlia Quiterres, Sara Duarte, André Barcelos, Sónia Afonso Ramos, Inês Garcia Nunes, André Pita, Filipe Gaboleiro, Eduardo Felício, Guilherme Bernardo, Margarida Meira, Rute Branco, Andrea Furtado, Diogo Bruno, Ana Paula Santos, Ana Paula Ferreira, Fernando Ferrito","doi":"10.1155/criu/8756601","DOIUrl":"10.1155/criu/8756601","url":null,"abstract":"<p><p>Spontaneous bladder rupture during vaginal delivery is a rare yet serious complication that requires prompt recognition and management to prevent life-threatening consequences. We report the case of a 32-year-old woman with a previous cesarean section who developed concurrent uterine and bladder rupture following vaginal delivery after labor induction, a highly unusual occurrence. The presence of hematuria right before delivery, which worsened postpartum, raised suspicion for a bladder injury. Diagnosis was confirmed intraoperatively through laparotomy. Timely surgical repair was performed, leading to a favorable outcome and full recovery.</p>","PeriodicalId":30323,"journal":{"name":"Case Reports in Urology","volume":"2026 ","pages":"8756601"},"PeriodicalIF":0.0,"publicationDate":"2026-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12801201/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145991180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Robot-Assisted Laparoscopic Partial Nephrectomy for Mixed Epithelial and Stromal Tumor of Kidney: A Case Report.","authors":"Sachie Kaichi, Hotaka Matsui, Sayuri Takahashi, Kazuki Akiyama, Daiji Watanabe, Satoru Taguchi, Yuta Yamada, Daisuke Yamada, Mariko Tanaka, Haruki Kume","doi":"10.1155/criu/5671959","DOIUrl":"10.1155/criu/5671959","url":null,"abstract":"<p><p>Mixed epithelial and stromal tumor (MEST) of the kidney is a rare and distinctive neoplasm accounting for 0.2% of all renal tumors. The general treatment for MEST typically involves radical nephrectomy or partial nephrectomy. We report a rare case of MEST successfully treated with robot-assisted partial nephrectomy (RAPN), which, to our knowledge, represents the first documented instance of this approach. The patient is a 53-year-old woman with an incidental right renal tumor. The patient visited a primary care physician for chest pain. Computed tomography (CT) scan revealed a 3.5-cm lesion in the upper pole of the right kidney and was suspected of renal cell carcinoma. The patient was subsequently referred to the department and was admitted to our department for RAPN. We experienced the first case of RAPN performed for MEST of the kidney. Histopathological and immunohistochemical analyses confirmed the diagnosis of MEST. This case highlights the feasibility of robot-assisted laparoscopic surgery as a minimally invasive treatment option for MEST.</p>","PeriodicalId":30323,"journal":{"name":"Case Reports in Urology","volume":"2025 ","pages":"5671959"},"PeriodicalIF":0.0,"publicationDate":"2025-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12747099/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145865936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Laparoscopic Retrieval of Foreign Body in the Kidney: An Unusual Case Report and Literature Review.","authors":"Abdalatiff K Bedaiwi, Moath M Qarmush, Ebtesam Almajed, Khalaf Abdullah Alshamrani, Malek M Almugharriq, Mohammed Hani Almomen, Khaled K Bedaiwi","doi":"10.1155/criu/8836853","DOIUrl":"10.1155/criu/8836853","url":null,"abstract":"<p><strong>Background: </strong>Renal foreign bodies are rare clinical entities that may result from iatrogenic injury, ingestion, or trauma. They often present with nonspecific symptoms, making diagnosis challenging.</p><p><strong>Case presentation: </strong>We report the case of a 42-year-old woman with right flank pain of 2 months and a surgical history of Burch colposuspension and laparoscopic cholecystectomy. Computed tomography revealed a 6-cm linear hyperdense object, representing a needle-like foreign body that penetrated the posterior cortex of the right kidney. She underwent successful transperitoneal laparoscopic retrieval, with an uneventful postoperative course and complete recovery.</p><p><strong>Conclusion: </strong>This case underscores the importance of maintaining a high index of suspicion and supports minimally invasive retrieval as a safe and effective approach, yielding favorable clinical outcomes.</p>","PeriodicalId":30323,"journal":{"name":"Case Reports in Urology","volume":"2025 ","pages":"8836853"},"PeriodicalIF":0.0,"publicationDate":"2025-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12747055/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145865972","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}