Korean J Intern Med.  2006 Sep;21(3):183-186. 10.3904/kjim.2006.21.3.183.

Two Cases of Interstitial Pneumonitis Caused by Rituximab Therapy

Affiliations
  • 1Department of Internal Medicine, Gachon Medical School, Gil Medical Center, Incheon, Korea. smbang@hanmail.net
  • 2Department of Radiology, Gachon Medical School, Gil Medical Center, Incheon, Korea.

Abstract

Rituximab, a chimeric monoclonal antibody directed against CD20, has become a part of the standard therapy for patients with non-Hodgkin's lymphoma either in combination with other drugs or as a single agent. The CD20 antigen is expressed on 95% of B-cell lymphoma cells and normal B-cells but, is not found on precursor B-cells or stem cells. Rituximab is now approved for patients with diffuse large B-cell lymphoma when combined with standard CHOP chemotherapy (cyclophosphamide, doxorubicin, vincristine and prednisone) or patients with follicular lymphoma who have failed first line chemotherapy. The monoclonal antibody is generally well tolerated. Most of the adverse events are infusion-associated, mild to moderate non-hematological toxicities. Severe respiratory adverse events have been infrequent. Here, we report two patients with non-Hodgkin's lymphoma in whom interstitial pneumonitis developed with rituximab therapy.

Keyword

Rituximab; Non-Hodgkin's lymphoma; Diffuse large B-cell lymphoma; Follicular lymphoma; Interstitial pneumonitis

MeSH Terms

Prednisolone/therapeutic use
Methylprednisolone/therapeutic use
Male
Lung Diseases, Interstitial/*chemically induced/diagnosis/drug therapy
Humans
Antineoplastic Agents/*adverse effects
Antibodies, Monoclonal/*adverse effects
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