Immunoglobulin G4-Related Inflammatory Pseudotumor With Cystic Features Mimicking Renal Cancer.

Introduction: Immunoglobulin G4-related disease is a systemic fibroinflammatory disorder that affects the kidney, presenting as an immunoglobulin G4-related inflammatory pseudotumor. These renal inflammatory pseudotumors are usually solid, and cystic presentations have not been previously described.

Case Presentation: We report a 77-year-old man who presented with a Bosniak category III renal cystic mass and periaortic fibrous thickening.

Snake-shaped tumor protruding from an ureteral orifice: a case of a long ureteral fibroepithelial polyp successfully resected ureteroscopically.

A fibroepithelial polyp (FEP) is a rare benign ureteral tumor that causes gross hematuria and ureteral obstruction. Diagnosis of FEP is difficult using ultrasound or radiographic imaging, and ureteroscopic diagnosis through direct vision is important. Although ureteroscopic resection is less invasive, FEP sometimes grows significantly in both length and size and requires open or laparoscopic ureteral resection.

Two Cases of Revisional Urinary Diversion from Ureterocutaneostomy to Ileal Conduit: A Staged Urinary Diversion Strategy for Patients with Bladder Cancer in the Targeted and Immunotherapy Era.

BACKGROUND Cutaneous ureterostomy (CU) is a commonly used urinary diversion procedure, particularly for patients with poor prognosis, such as those with advanced cancer, a single kidney, or older age. CU is technically easier and faster to perform than other procedures, such as ileal conduit and ileal neobladder, as it does not involve the intestines, thus reducing the risk of postoperative intestinal complications and metabolic abnormalities. However, CU has several drawbacks, including difficulty in achieving a catheter-free status, frequent urinary tract infections, and concerns about long-term renal function, which can negatively impact a patient's quality of life.

Female intravesical foreign body penetrating the bladder wall: A rare case of traditional Asian hair stick .

A female in her thirties inserted an Asian traditional hair stick, , into her urinary bladder for sexual gratification. We need to know that everyday objects can become bladder foreign bodies and how to manage them properly.

Testis-expressed gene 11 inhibits cisplatin-induced DNA damage and contributes to chemoresistance in testicular germ cell tumor.

Testicular germ cell tumor (TGCT) is a rare cancer but the most common tumor among adolescent and young adult males. Patients with advanced TGCT often exhibit a worse prognosis due to the acquisition of therapeutic resistance. Cisplatin-based chemotherapy is a standard treatment for advanced TGCTs initially sensitive to cisplatin, as exemplified by embryonal carcinoma.

Clinicopathological and Preclinical Patient-Derived Model Studies Define High Expression of NRN1 as a Diagnostic and Therapeutic Target for Clear Cell Renal Cell Carcinoma.

Background: Acquired therapeutic resistance and metastasis/recurrence remain significant challenge in advance renal cell carcinoma (RCC), thus the establishment of patient-derived cancer models may provide a clue to assess the problem. We recently characterized that neuritogenesis-related protein neuritin 1 (NRN1) functions as an oncogene in testicular germ cell tumor. This study aims to elucidate the role of NRN1 in RCC.

HIF1α inhibitor 2-methoxyestradiol decreases NRN1 expression and represses in vivo and in vitro growth of patient-derived testicular germ cell tumor spheroids.

Testicular germ cell tumor (GCT) is the most common type of malignancy in young males. Patients with nonseminomatous GCT still have poor prognosis. To identify new therapeutic targets, we generated patient-derived cells (PDCs) and their xenograft (PDCX) models from 3 distinct GCT patients' specimens.

Proposal for a Simple Anatomical Classification of the Pelvicaliceal System for Endoscopic Surgery.

We herein propose a nomenclature for renal calices and anatomical classification of the renal pelvis for endoscopic surgery. We prospectively collected data on a total of 270 patients (540 kidneys) who underwent CT-urography. We then constructed three-dimensional images of the renal pelvis and examined their morphologic classification.

Predictive risk factors for systemic inflammatory response syndrome following ureteroscopic laser lithotripsy.

The objective of this study was to investigate risk factors for the development of systemic inflammatory response syndrome following ureteroscopic laser lithotripsy. We retrospectively collected data of 469 patients who underwent ureteroscopic laser lithotripsy at our single institution from February 2008 to June 2016. Details for the patient, the stone, and the surgical factors that potentially contributed to postoperative infection were extracted.

Appropriate kidney stone size for ureteroscopic lithotripsy: When to switch to a percutaneous approach.

Flexible ureteroscopy (fURS) has become a more effective and safer treatment for whole upper urinary tract stones. Percutaneous nephrolithotomy (PNL) is currently the first-line recommended treatment for large kidney stones ≥ 20 mm and it has an excellent stone-free rate for large kidney stones. However, its invasiveness is not negligible considering its major complication rates.

[Clinicopathological analysis of 3 cases in which pulmonary metastasis from the urothelial carcinoma was resected].

We describe 3 cases in which the pulmonary metastasis from the urothelial carcinoma of the bladder and upper urinary tract was resected. The duration from the operation of the primary lesion to the occurrence of the pulmonary metastasis was 19, 11, and 4 years in each of the 3 cases. Repeated treatment of the local recurrence was performed in all the 3 cases.

Single-session ureteroscopy with holmium laser lithotripsy for multiple stones.

Multiple stones are found in 20-25% of patients with urolithiasis. The stone multiplicity is a powerful adverse factor influencing the treatment outcome after shockwave lithotripsy, although guidelines for the treatment of multiple stones have not been well established yet. Herein we report our most recent experience of a single-session ureteroscopy for multiple stones.

Successful outcome of flexible ureteroscopy with holmium laser lithotripsy for renal stones 2 cm or greater.

Although percutaneous nephrolithotomy has been recommended as the first-line treatment for renal stones larger than 2 cm, its major complication rate is not negligible and less invasive approaches are to be explored. Thanks to the recent advances in endoscopic technology, flexible ureteroscopy has become another option in this setting. Herein we report our most recent experience with flexible ureteroscopy for large renal stones.

[Transurethral lithotripsy with rigid and flexible ureteroscopy for renal and ureteral stones: results of the first 100 procedures].

We evaluated the clinical outcome of transurethral lithotripsy (TUL) using rigid & flexible ureteroscopy and holmium : yttrium-aluminum-garnet (YAG) laser in our hospital. We retrospectively reviewed 100 consecutive transurethral lithotripsy procedures performed on 82 patients from May 2008 to June 2010 at our hospital. Twenty-five patients (30%) had multiple stones and 10 patients (12%) had bilateral stones.

[A case of urachal carcinoma with transverse colon fistula].

A 61-year-old woman was admitted to our hospital because of abdominal pain. Computed tomography showed an abscess in the anterior abdominal wall and an intraabdominal tumor. Biopsy from bladder dome presented adenocarcinoma.

[Two cases of intrascrotal tumors complicated acute scrotum].

We report 2 rare cases of intrascrotal tumors complicated acute scrotum. Case 1: A 15-year-old adolescent presented to our emergency room with acute right scrotal pain. Testicular torsion was suspected, and surgical exploration was performed.

[A case bilharziasis in a Japanese male].

Bilharziasis is an endemic disease distributed mostly in African countries and the Middle East, and causes severe disturbances of urinary tract secondarily. Although it used to be a very rare disease in Japan, modern human mobility and jet travel have brought this tropical disease into our country far from endemic areas. A 25-year-old Japanese male presented to our hospital with macroscopic hematuria.