Background: There are very few publications on synchronous presentation of dual
malignancies in the literature. Occurrence of second malignancy in a patient with a known malignant tumor is not uncommon, though
synchronous primary malignancies are unusual. Case Presentation: A 77-year-old man was diagnosed
elsewhere as squamous cell carcinoma of lung came to our oncology department
for further management. He underwent bone marrow evaluation with the suspicious
of metastasis in view of pancytopenia. On bone marrow evaluation, found to have
prominence of blasts more than 20%, which were CD34 positive and CD117 positive
and. Conclusion: Here we describe an unusual rare combination of synchronous
presentation of acute myeloid leukemia and squamous cell carcinoma of lung.
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