Recurrent eosinophilic cystitis in a child with chronic granulomatous disease

Area of Science:

• Pediatric Urology
• Immunology
• Genetics

Background:

• Eosinophilic cystitis is an uncommon bladder inflammation.
• Its association with chronic granulomatous disease (CGD) is rare, with only five prior reports.
• Previous cases typically showed benign or steroid-responsive disease courses.

Observation:

• This report details a pediatric case of X-linked CGD presenting with eosinophilic cystitis.
• Unlike previous cases, this patient's EC exhibited a recurrent course and proved difficult to manage therapeutically.
• The presentation necessitated a review of granuloma formation in CGD and treatment strategies for associated complications.

Findings:

• The case underscores that eosinophilic cystitis associated with CGD can present with a recurrent and challenging clinical course.
• Standard treatments effective in other reported cases may not be sufficient for all CGD-associated EC presentations.
• This highlights the need for individualized therapeutic approaches in complex pediatric cases.

Implications:

• This case expands the understanding of the clinical spectrum of eosinophilic cystitis in children with chronic granulomatous disease.
• It suggests that CGD-associated EC may not always follow a benign or easily managed trajectory.
• Further research into the pathogenesis and optimal management of this rare complication is warranted.