Introduction: Lung carcinoma stands among one of the most common malignancies causing higher mortality. Like other parts of the world, there is an increase in the incidence of lung carcinoma in India as well. Lung malignancy has been categorized into non-small cell (NSCLC) and small cell (SCLC) lung carcinoma. Lung malignancy has been categorized into non-small cell (NSCLC) and small cell (SCLC) lung carcinoma. These histological types of lung malignancies have an importance lying on the clinical presentation, prognosis, and response to treatment. Material and Methods: This descriptive retrospective study was performed using the records of 110 patients with lung cancer proved by histo-pathological examination. The demographic information was obtained from their requisition form for cytology and histopathalogy examination of specimens. Results: The results of this study were based on the analysis of 110 case-records of patients who had proven to have lung cancer. The age of the patients ranged between 22-95 years. Smoking habit was found in the majority of the male patients, 81 patient out of total 91 male were smoker which constitute about 89% were smoker. Our revealed that the adenocarcinoma is the most common type in our center, it was found in 63 patients (57.3%) common in both male and female, followed by squamous cell carcinoma in 31 patients (28.2%). Large cell carcinoma was the least commonly found only in a single case in our study. Discussion: The mean age of lung cancer patients has remained nearly constant over the years. The present study showed a smoker: non-smoker ratio of 2.8:1 in patients of lung cancer. The present study has observed that adenocarcinoma accounted for 57.3% of lung carcinoma, squamous cell carcinoma for 28.2%, small cell carcinoma for 3.6%, undifferentiated carcinoma for 10.9% and large cell ca 0.9%. In our study, we found adenocarcinoma to be the commonest histological subtype, accounting for 57.3% of all lung carcinoma cases . Over the last few years there has been a shift of histological profile towards adenocarcinoma worldwide. Conclusions: Lung carcinoma is a very serious public health problem and a preventable disease. With an increasing incidence and cigarette smoking is responsible for at least 90% of lung carcinoma.

Keywords: Lung Malignancy; Adenocarcinoma; Squamous Cell Carcinoma; NSCLC; SCLC.