Colonic Mucormycosis in Fistulizing Crohn's Disease

Area of Science:

• Gastroenterology
• Mycology
• Immunology

Background:

• Gastrointestinal mucormycosis is a rare, fatal fungal infection primarily affecting immunocompromised individuals.
• Colonic mucormycosis is infrequent, carries a high mortality rate, and is often associated with underlying conditions.
• Perianal Crohn's disease is a severe manifestation requiring multidisciplinary care and often profound immunosuppression with biological agents.

Observation:

• A middle-aged female with perianal Crohn's disease, treated with adalimumab, presented with symptoms suggestive of a disease flare.
• Diagnostic investigations revealed the presence of colonic mucormycosis as the cause of the patient's worsening condition.

Findings:

• The patient's clinical presentation and diagnostic workup confirmed colonic mucormycosis.
• The fungal infection was identified as the trigger for the flare in her perianal Crohn's disease activity.

Implications:

• This case underscores the critical need for heightened clinical suspicion for opportunistic fungal infections, such as mucormycosis, in patients with inflammatory bowel disease (IBD).
• Early recognition and management of fungal infections are crucial to prevent severe complications and disease flares in IBD patients undergoing immunosuppressive therapy.
• Increased awareness among healthcare providers is essential for timely diagnosis and effective treatment strategies in this vulnerable patient population.