Concurrent Sweet’s syndrome and myopericarditis following mesalamine therapy

• Published in: BMJ case reports Vol. 2018; p. bcr-2017-223851
• Main Authors: Shabtaie, Samuel A, Tan, Nicholas Y, Parikh, Riddhi S, Papadakis, Konstantinos A
• Format: Journal Article
• Language: English
• Published: England BMJ Publishing Group LTD 23.03.2018; BMJ Publishing Group
• Series: Case Report
• Subjects: Abdomen; Adult; Anti-Inflammatory Agents - therapeutic use; Antibiotics; Biopsy; Case reports; Crohn Disease - drug therapy; Crohns disease; Data collection; Edema; Electrocardiography; Female; Fever; Humans; Inflammatory bowel disease; Magnetic Resonance Imaging; Mesalamine - adverse effects; Myocarditis - chemically induced; Myocarditis - drug therapy; Neutrophils; NMR; Nuclear magnetic resonance; Pain; Pericarditis; Pericarditis - chemically induced; Pericarditis - drug therapy; Sinuses; Skin; Skin diseases; Sweet Syndrome - chemically induced; Sweet Syndrome - drug therapy; Treatment Outcome; Unexpected Outcome (Positive or Negative) Including Adverse Drug Reactions; pericardial disease; crohn’s disease; drugs: gastrointestinal system; inflammatory bowel disease; unwanted effects / adverse reactions
• DOI: 10.1136/bcr-2017-223851
• ISSN: 1757-790X

Mesalamine, or 5-aminosalicylic acid, is a frequently used medication for the treatment of inflammatory bowel disease (IBD). We report the case of a 40-year-old woman recently diagnosed with IBD and started on mesalamine, who presented with new onset tender skin lesions 3 days following medication administration. One day following the onset of skin lesions, the patient developed acute chest pain, shortness of breath, ECG changes, troponemia, C-reactive protein elevation and pericardial enhancement on cardiac MRI consistent with myopericarditis. Subsequent skin biopsy confirmed the diagnosis of Sweet’s syndrome. On cessation of the drug, both the skin lesions and the cardiac symptoms resolved in combination with anti-inflammatory therapy. While mesalamine has been previously associated with myocarditis and pericarditis, to our knowledge this is the first case of coexisting Sweet’s syndrome with myopericarditis in the context of mesalamine therapy.