Cutaneous Manifestations and Dermatologic Adverse Events in IBD: A Clinical Update

Area of Science:

• Gastroenterology
• Dermatology
• Immunology

Background:

• Inflammatory bowel diseases (IBD), such as Crohn's disease and ulcerative colitis, involve chronic inflammation and extraintestinal manifestations.
• Dermatological conditions are common IBD complications, significantly affecting patients' quality of life (QoL).

Purpose of the Study:

• To review the complex relationship between IBD and cutaneous manifestations.
• To discuss the impact of biologic therapies on skin conditions in IBD patients.
• To highlight the gut-skin axis and its role in IBD-related dermatoses.

Main Methods:

• Comprehensive literature review focusing on IBD and dermatological manifestations.
• Analysis of specific conditions: erythema nodosum, pyoderma gangrenosum, Sweet syndrome, hidradenitis suppurativa, psoriasis, and vitiligo.
• Examination of biologic therapies, their side effects, and paradoxical skin reactions.

Main Results:

• IBD is associated with various skin conditions, including autoimmune and inflammatory dermatoses.
• Biologic therapies can cause both beneficial and adverse dermatological effects, including unique rashes.
• The gut-skin axis demonstrates shared pathways influencing both gastrointestinal and skin health.

Conclusions:

• Interdisciplinary care is essential for managing IBD-related skin issues.
• Understanding the gut-skin axis informs tailored therapies for IBD patients with dermatological complications.
• This review provides clinicians with practical insights for optimizing patient outcomes.