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Post-surgical necrobiotic granulomas of urinary bladder
Urology
|May 1, 1990
Summary
Palisading necrobiotic granulomas can occur after transurethral surgery of the urinary bladder. This uncommon reaction may be caused by hypersensitivity to tissue changes induced by diathermy.
Area of Science:
- Uropathology
- Surgical Pathology
Background:
- Palisading necrobiotic granulomas are a known complication of prostate transurethral surgery.
- The occurrence of similar granulomas after urinary bladder transurethral surgery is less common.
Observation:
- Three cases of palisading necrobiotic granulomas following transurethral resection of bladder tumors are presented.
- Lesions were identified via biopsy after the surgical procedure.
Findings:
- The granulomas in the urinary bladder appear histologically similar to those seen in the prostate.
- A potential cause is an idiosyncratic hypersensitivity reaction.
Implications:
- This reaction may be linked to diathermically induced changes in subepithelial connective tissue antigenicity.
- Understanding this sequela is important for accurate diagnosis after transurethral bladder surgery.