Results 141 to 150 of about 87,034 (267)

Oncocytoma Arising From an Accessory Adrenal Gland: A Case Report

open access: yesIJU Case Reports, Volume 9, Issue 5, September 2026.
ABSTRACT Introduction Accessory adrenal oncocytomas are rare. Consequently, the clinical characteristics and management of this entity remain poorly defined. Case Presentation A 65‐year‐old man presented with a retroperitoneal mass. Imaging revealed a 103 × 96 mm tumor adjacent to the left kidney.
Yuki Seki   +9 more
wiley   +1 more source

Fluorescent Ureteral Catheter‐Assisted Retroperitoneoscopic Biopsy for Periureteral IgG4‐Related Disease Mimicking Upper Tract Urothelial Carcinoma

open access: yesIJU Case Reports, Volume 9, Issue 5, September 2026.
ABSTRACT Introduction Periureteral IgG4‐related disease (IgG4‐RD) is rare and can mimic upper tract urothelial carcinoma (UTUC), sometimes leading to unnecessary nephroureterectomy. Diagnosis is challenging when endoscopic biopsy is inconclusive and percutaneous biopsy is unsafe.
Takeshi Yoshida   +9 more
wiley   +1 more source

Rapidly Progressive Retroperitoneal Dissemination of Plasmacytoid Urothelial Carcinoma Presenting With Multiorgan Obstruction After Radical Cystectomy: A Case Report

open access: yesIJU Case Reports, Volume 9, Issue 5, September 2026.
ABSTRACT Introduction Plasmacytoid urothelial carcinoma (PUC) is a rare, aggressive subtype of bladder cancer characterized by diffuse infiltrative growth and a propensity for peritoneal and retroperitoneal dissemination. Case Presentation A patient with muscle‐invasive bladder cancer (cT3N1M0) was diagnosed with conventional high‐grade urothelial ...
Mahito Atsuta   +9 more
wiley   +1 more source

A rare and massive retroperitoneal leiomyoma: a case report. [PDF]

open access: yesFront Oncol
Jiang S   +11 more
europepmc   +1 more source

Primary Peritoneal Perivesical Hemangiosarcoma in 16 Dogs (2020–2024)

open access: yesVeterinary Medicine and Science, Volume 12, Issue 5, September 2026.
Primary peritoneal perivesical hemangiosarcoma in dogs may represent a distinct anatomical presentation of visceral hemangiosarcoma. Despite a high metastatic rate and guarded prognosis, multimodal treatment combining surgery and chemotherapy significantly improved progression‐free and disease‐specific survival compared with chemotherapy alone ...
Jose Roca   +3 more
wiley   +1 more source

Robotic retroperitoneal lymph node dissection: a stepwise technical guide. [PDF]

open access: yesJ Robot Surg
Bacaglini W   +9 more
europepmc   +1 more source

Secondary leukaemia after testicular germ cell tumour treatment: a systematic review and meta‐analysis

open access: yesBJU International, Volume 138, Issue 3, Page 370-378, September 2026.
Background Testicular germ cell tumours (TGCTs) are the most common malignancy in men aged 15–35 years. Management options for men with TGCTs include surgery, radiation and/or chemotherapy, depending on stage. Given TGCTs’ excellent survival, most patients live long enough to experience delayed treatment toxicities, warranting careful consideration of ...
Ahmad Mousa   +5 more
wiley   +1 more source

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