Cutaneous manifestations of inflammatory bowel disease.

What is it inflammatory gastrointestinal disease?

There are two main forms of inflammatory bowel disease (IBD): ulcerative colitis and Crohn's disease. Both are characterized by abdominal pain and diarrhea, sometimes with bleeding.

• Ulcerative colitis usually involves only the colon (large intestine).
• Crohn's disease can affect any part of the gastrointestinal tract from the labia to the anus with scattered lesions. Crohn's disease is characterized by pathology for not cassette granulomas but these are not always found in the intestine biopsy.

Although the two diseases are quite separate, accurate diagnosis can sometimes be difficult, especially in the early stages. Therefore, the involvement of other organs may help to make the distinction.

Skin disease and inflammatory bowel disease.

DermNet NZ includes the following pages on inflammatory bowel disease:

• Oral manifestations of inflammatory bowel disease.
• Crohn's skin disease
• Genital Crohn's disease
• Orofacial Crohn's disease
• Orofacial granulomatosis
• Pyodermatitis-pyostomatitis vegetans

Other disorders associated with inflammatory bowel disease.

Some nonspecific conditions occur more commonly with IBD than in the general population, but also occur without bowel disease, and the pathology is not diagnostic for bowel disease.

These include:

• Aphthous ulceration
• Angular cheilitis
• Neutrophils skin disease: acute febrile neutrophilic skin disease (Sweet syndrome), pyoderma gangrenous syndrome and intestinal bypass (associated with the intestine dermatitis–arthritis syndrome)
• Erythema knotty
• Stoma skin problems
• Anal Cancer.

IBD can lead to malabsorption complications caused by the intestine. inflammation or surgery, resulting in deficiencies in vitamins and minerals.

• Malnutrition
• Lack of iron

• Pellagra (vitamin B3, niacin deficiency)

• Scurvy (vitamin C deficiency)

• Acquired acrodermatitis enteropathica (zinc deficiency)

• vitamin A deficiency
• Vitamin B12 deficiency (Crohn's disease absorbed from the small intestine)
• Folic acid deficiency
• Vitamin K deficiency – bleeding

Skin reactions can also arise to medications prescribed for IBD.