Abstract
Dasatinib is a second-generation tyrosine kinase inhibitor (TKI) used in chronic myelogenous
leukemia (CML). While pleural effusion due to Dasatinib is well described in the literature,
interstitial lung disease (ILD) caused by it is rare. A 60-year-old gentleman was
on treatment with 100 mg of tablet Dasatinib per day for chronic myeloid leukemia.
He presented to the outpatient department with history of progressive breathlessness
over 2 months. High-resolution computerized tomography (HRCT) thorax revealed mild
right-sided effusion and non-specific interstitial pneumonia (NSIP) pattern of ILD
in the left lower lobe. Thoracocentesis of the right-sided pleural effusion showed
exudative and lymphocytic rich pleural effusion. The effusion was negative for malignant
cells or infection. Biopsy of the left lower lobe was consistent with the diagnosis
of ILD. He was started on prednisolone which was gradually tapered and stopped. At
3 months, there was a complete resolution of the ILD and pleural effusion. Clinicians
need to be aware about the pleuroparenchymal toxicities of Dasatinib. Early diagnosis
and treatment with steroids can lead to complete resolution of the signs and symptoms.
Keywords
Dasatinib - interstitial lung disease - prednisolone - chronic myelogenous leukemia