Urinary retention secondary to presacral myelolipoma; first reported case diagnosed by prostate TUR and requiring a cystectomy.

Obstructive voiding symptoms may exceptionally be caused by extrinsic compression. We herein present a singular case of a 68-year-old male that presented with urinary retention and underwent prostate trans-urethral resection (TUR) with histology showing benign prostatic hyperplasia admixed with large amounts of myelolipoma tissue. To the best of our knowledge this is the first reported presacral myelolipoma diagnosed at prostate trans-urethral resection (TUR).

Initial high-grade T1 urothelial cell carcinoma: feasibility and prognostic significance of lamina propria invasion microstaging (T1a/b/c) in BCG-treated and BCG-non-treated patients.

Objectives: This study aimed to determine the prognostic value of depth of lamina propria invasion in initial high-grade T1 bladder tumors. Secondary aims were to evaluate the prognostic significance of concomitant carcinoma in situ (CIS) and the impact of bacillus Calmette-Guérin (BCG) treatment as well as to assess the feasibility of microstaging by pathologists in a community setting.

Patients And Methods: Ninety-seven tumors were available for study and were substaged according to invasion superficial to, into or beyond the muscularis mucosae (MM) (T1a, T1b, T1c).

Renal collecting (Bellini) duct carcinoma displays similar characteristics to upper tract urothelial cell carcinoma.

Objectives: To describe 3 cases of tumors located in the kidney that may relate collecting (Bellini) duct carcinoma (CDC) to urothelial cell carcinoma (UC). We hypothesized that these distinct tumor types may share a common origin. CDC is a subtype of renal cell carcinoma associated with a highly aggressive course, poor prognosis, and limited response to immunotherapy, behaving similarly to UC.

Small cell carcinoma of the urinary bladder. Presentation of 23 cases and review of 134 published cases.

Objective: To investigate the morphological diagnostic criteria and biology of the urinary bladder small cell carcinoma (SCC).

Methods: Study of 23 cases of bladder SCC, looking for the clinical presentation, pathological features and evolution, and review of 134 previously published cases.

Results: The SCC is infrequent (0.