Cranial Base Pachymeningitis in Children: Beyond Tuberculosis

Area of Science:

• Infectious Diseases
• Pediatric Neurology
• Mycology

Background:

• Cryptococcal meningitis shares clinical and radiologic features with tuberculosis, a common cause of chronic meningitis in children.
• Cryptococcus gattii is an emerging pathogen causing meningitis, particularly in immunocompetent individuals.
• High morbidity rates associated with cryptococcal meningitis necessitate improved diagnostic strategies.

Purpose of the Study:

• To highlight the importance of considering Cryptococcus gattii in pediatric meningitis cases with tuberculosis-like presentations.
• To emphasize the need for high clinical suspicion and sensitive diagnostic tests for cryptococcal meningitis in endemic regions.

Main Methods:

• Case report of a 12-year-old immunocompetent male with cranial base pachymeningitis.
• Clinical and radiological assessment of the patient's condition.
• Diagnostic workup for infectious meningitis.

Main Results:

• The patient was diagnosed with cranial base pachymeningitis caused by Cryptococcus gattii infection.
• The presentation mimicked tuberculosis, underscoring diagnostic challenges.
• The case highlights the potential for Cryptococcus gattii to cause severe meningitis in immunocompetent children.

Conclusions:

• Cryptococcal meningitis requires a high index of suspicion in children, particularly in endemic areas.
• Timely and accurate diagnosis using sensitive tests is critical to reduce morbidity and mortality.
• Differentiating cryptococcal meningitis from tuberculosis is essential for appropriate treatment and improved patient outcomes.