title: Gastroenterology case report of mesalazine-induced cardiopulmonary hypersensitivity.
abstract: Mesalazine is a 5-aminosalicylic acid derivative that has been widely used to treat patients with inflammatory bowel disease. Accumulating evidence indicates that mesalazine has a very low rate of adverse drug reactions and is well tolerated by patients. However, a few cases of pulmonary and cardiac disease related to mesalazine have been reported in the past, though infrequently, preventing clinicians from diagnosing the conditions early. We describe the case of a 32-year-old man with ulcerative colitis who was admitted with a two-month history of persistent fever following mesalazine treatment initiated 14 mo earlier. At the time of admission, mesalazine dose was increased from 1.5 to 3.0 g/d, and antibiotic therapy was started with no improvement. Three weeks after admission, the patient developed dyspnea, non-productive cough, and chest pain. Severe eosinophilia was detected in laboratory tests, and a computed tomography scan revealed interstitial infiltrates in both lungs, as well as a large pericardial effusion. The bronchoalveolar lavage reported a CD4/CD8 ratio of 0.5, and an increased eosinophil count. Transbronchial biopsy examination showed a severe eosinophilic infiltrate of the lung tissue. Mesalazine-induced cardiopulmonary hypersensitivity was suspected after excluding other possible etiologies. Consequently, mesalazine treatment was suspended, and corticosteroid therapy was initiated, resulting in resolution of symptoms and radiologic abnormalities. We conclude that mesalazine-induced pulmonary and cardiac hypersensitivity should always be considered in the differential diagnosis of unexplained cardiopulmonary symptoms and radiographic abnormalities in patients with inflammatory bowel disease.
authors: José Ferrusquía, Isabel Pérez-Martínez, Ruth de Francisco, Luis Rodrigo, Sabino Riestra, Department of Gastroenterology, Central University Hospital of Asturias, 33011 Oviedo, Asturias, Spain.
authors: José
authors: J
authors: Ferrusquía
authors: José Ferrusquía, Isabel Pérez-Martínez, Ruth de Francisco, Luis Rodrigo, Sabino Riestra, Department of Gastroenterology, Central University Hospital of Asturias, 33011 Oviedo, Asturias, Spain.
authors: Isabel
authors: I
authors: Pérez-Martínez
authors: José Ferrusquía, Isabel Pérez-Martínez, Ruth de Francisco, Luis Rodrigo, Sabino Riestra, Department of Gastroenterology, Central University Hospital of Asturias, 33011 Oviedo, Asturias, Spain.
authors: Ricardo
authors: R
authors: Gómez de la Torre
authors: José Ferrusquía, Isabel Pérez-Martínez, Ruth de Francisco, Luis Rodrigo, Sabino Riestra, Department of Gastroenterology, Central University Hospital of Asturias, 33011 Oviedo, Asturias, Spain.
authors: María Luisa
authors: ML
authors: Fernández-Almira
authors: José Ferrusquía, Isabel Pérez-Martínez, Ruth de Francisco, Luis Rodrigo, Sabino Riestra, Department of Gastroenterology, Central University Hospital of Asturias, 33011 Oviedo, Asturias, Spain.
authors: Ruth
authors: R
authors: de Francisco
authors: José Ferrusquía, Isabel Pérez-Martínez, Ruth de Francisco, Luis Rodrigo, Sabino Riestra, Department of Gastroenterology, Central University Hospital of Asturias, 33011 Oviedo, Asturias, Spain.
authors: Luis
authors: L
authors: Rodrigo
authors: José Ferrusquía, Isabel Pérez-Martínez, Ruth de Francisco, Luis Rodrigo, Sabino Riestra, Department of Gastroenterology, Central University Hospital of Asturias, 33011 Oviedo, Asturias, Spain.
authors: Sabino
authors: S
authors: Riestra
mesh_terms: D000305:Adrenal Cortex Hormones / Q000627:therapeutic use; D000328:Adult; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000009:adverse effects*; D001706:Biopsy; D003093:Colitis, Ulcerative / Q000175:diagnosis / Q000188:drug therapy*; D057915:Drug Substitution; D006801:Humans; D008297:Male; D019804:Mesalamine / Q000009:adverse effects*; D010490:Pericardial Effusion / Q000139:chemically induced* / Q000175:diagnosis; D011237:Predictive Value of Tests; D011657:Pulmonary Eosinophilia / Q000139:chemically induced* / Q000175:diagnosis; D012074:Remission Induction; D012130:Respiratory Hypersensitivity / Q000139:chemically induced* / Q000175:diagnosis; D012307:Risk Factors; D012720:Severity of Illness Index; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome
chemical_list: D000305:Adrenal Cortex Hormones; D000894:Anti-Inflammatory Agents, Non-Steroidal; D019804:Mesalamine
keywords: Eosinophilia; Lung hypersensitivity; Mesalazine; Pericardial effusion; Ulcerative colitis