Abstract
Drug induced pulmonary toxicity is not uncommon with the use of various chemotherapeutic agents. Cyclophosphamide is a widely used chemotherapeutic drug in the treatment of breast cancer. Although rare, lung toxicity has been reported with cyclophosphamide use. Detection of bleomycin induced pulmonary toxicity and pattern of 18F-fluorodeoxyglucose (18F-FDG) uptake in lungs on fluorodeoxyglucose positron emission tomography-computed tomography (18F-FDG PET-CT) has been elicited in literature in relation to lymphoma. However, limited data is available regarding the role of 18F-FDG PET-CT in monitoring drug induced pulmonary toxicity in breast cancer. We here present two cases of cyclophosphamide induced drug toxicity. Interim 18F-FDG PET-CT demonstrated diffusely increased tracer uptake in bilateral lung fields in both these patients. Subsequently there was resolution of lung uptake on 18F-FDG PET-CT scan post completion of chemotherapy. These patients did not develop significant respiratory symptoms during chemotherapy treatment and in follow up.
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Authors Sameer Kamalakar Taywade, Chandrasekhar Bal and Rakesh Kumar declare that they have no conflict of interest.
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Manuscript contains a statement that the study was approved by an institutional review board or equivalent and has been performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments. All subjects in the study gave written informed consent or the institutional review board waived the need to obtain informed consent.
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Taywade, S.K., Kumar, R., Bhethanabhotla, S. et al. Role of 18F-FDG PET-CT in Monitoring the Cyclophosphamide Induced Pulmonary Toxicity in Patients with Breast Cancer — 2 Case Reports. Nucl Med Mol Imaging 50, 261–265 (2016). https://doi.org/10.1007/s13139-015-0388-3
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DOI: https://doi.org/10.1007/s13139-015-0388-3