Sweet's syndrome associated with Crohn's disease.

Area of Science:

• Dermatology
• Gastroenterology
• Internal Medicine

Background:

• Sweet's syndrome is an uncommon, benign skin disorder with unknown pathogenesis.
• The classic form presents as painful, erythematous to violaceous papular-nodular lesions, primarily on the face, neck, and upper limbs, often accompanied by fever and neutrophilic leukocytosis.

Observation:

• The association between Sweet's syndrome and Crohn's disease is infrequent, with limited documented cases globally.
• Notably, no cases of this association have been reported in Brazil prior to this report.

Findings:

• This report documents a rare case of a patient diagnosed with Crohn's disease who subsequently presented with the characteristic clinical features of Sweet's syndrome.
• The patient exhibited the classic painful, papular-nodular skin lesions and systemic symptoms consistent with Sweet's syndrome.

Implications:

• This case highlights a rare but significant association between an inflammatory bowel disease and a neutrophilic dermatosis.
• It underscores the importance of considering Sweet's syndrome in patients with Crohn's disease presenting with suggestive dermatological symptoms.
• Further research may elucidate shared pathogenetic mechanisms between these two conditions.