Bronchioloalveolar carcinoma (BAC) is a peculiar form of lung carcinoma with variable clinical, radiographic, and histological presentation and occurs most frequently among non–smokers, women and Asians. It is a subtype of adenocarcinoma of lung, but has significantly variable presentation, treatment and prognosis. BAC has now reclassified and the term adenocarcinoma in situ is used for BAC tumors. Bronchioloalveolar carcinoma represents 2–6 % of lung malignancies. We were reported a case of 70yr old non–smoker male hospitalized in P.D.U. civil hospital, Rajkot and diagnosed as Bronchioloalveolar carcinoma on basis of CT guided FNAC and biopsy.