X-Linked Chronic Granulomatous Disease: Initial Presentation with Intracranial Hemorrhage from Vitamin K Deficiency in Infant

Area of Science:

• Pediatric Hematology
• Immunology
• Infectious Disease

Background:

• Vitamin K deficiency bleeding (VKDB) is a critical condition in neonates, potentially causing intracranial hemorrhage (ICH).
• X-linked chronic granulomatous disease (XL-CGD) is a primary immunodeficiency affecting phagocyte function.
• Vaccine-associated mycobacterial disease can lead to severe complications in immunocompromised individuals.

Observation:

• A 1-year-old boy presented with intracranial hemorrhage (ICH) attributed to vitamin K deficiency bleeding (VKDB) starting at 3 months of age.
• The patient was subsequently diagnosed with X-linked chronic granulomatous disease (XL-CGD).
• Severe malabsorption was noted, linked to a history of mycobacterial disease following vaccination.

Findings:

• This case illustrates a complex clinical presentation involving VKDB, XL-CGD, and vaccine-associated complications.
• The interplay between these conditions led to significant malabsorption and hematological issues.
• Early diagnosis and management of both VKDB and XL-CGD are crucial.

Implications:

• Highlights the importance of considering rare underlying conditions in infants with seemingly common presentations like VKDB.
• Underscores the potential for severe complications in immunocompromised children, including those with XL-CGD, following vaccinations.
• Suggests a need for careful monitoring of nutritional status and infection in patients with primary immunodeficiencies.