Cystitis glandularis: A controversial premalignant lesion

Area of Science:

• Urology
• Oncology
• Pathology

Background:

• Cystitis glandularis (CG) is a bladder condition with debated potential as a precursor to adenocarcinoma.
• The association between CG and bladder carcinoma requires further investigation.

Purpose of the Study:

• To retrospectively evaluate the association between typical and intestinal cystitis glandularis and bladder carcinoma.
• To assess the risk of subsequent malignancy in patients with CG.

Main Methods:

• Retrospective analysis of 166 patients diagnosed with typical (n=155) or intestinal (n=11) CG between 1994 and 2010.
• Evaluation of concurrent bladder carcinoma at the time of CG diagnosis.
• Follow-up of patients for up to 17 years to monitor for subsequent malignancies.

Main Results:

• Concurrent bladder carcinoma was identified in 9.0% of patients at the time of CG diagnosis.
• No evidence of subsequent carcinoma was found in either typical or intestinal CG groups during follow-up.
• In intestinal CG cases treated with transurethral fulguration, 72.7% achieved remission within 9 months.

Conclusions:

• The study does not support that cystitis glandularis increases the future risk of malignancy in the short term.
• Repeated cystoscopies are not recommended for short-term monitoring of CG patients.
• Further long-term studies may be needed to definitively rule out any potential association.