In the final paper, I will deal with the topic "Lung cancer in biopsy material at the General Hospital Dubrovnik in a five-year period." I chose it because, contrary to the trend in developed countries, the incidence of lung cancer in our country is constantly increasing. Namely, according to the data of the Croatian Institute of Public Health, lung cancer is the most common cancer in men in the Republic of Croatia and the third most common in women. The most important external factor is cigarette smoking, so lung cancer is significantly more common in smokers than in non-smokers, and smoking is reported in the history of most patients with lung cancer. In this research I will use data from the archive of pathohistological findings of the Pathology Department - General Hospital Dubrovnik from 01.01.2014. till 31.12.2018. Biopsies were performed at the Department of Internal Medicine or the Department of Surgery of the General Hospital Dubrovnik. Biopsy material was: (trans) bronchial biopsy, transthoracic needle biopsy, open biopsy, or lung resection. From pathohistological findings I will collect data on sex and age of subjects, date of biopsy, type of cancer and type of biopsy material, and from the Register of Oncology Patients data on the status of subjects at the end of follow-up 01.04.2019. The goals of the work are: 1. To show the distribution of lung tumors in the pathological material in the observed period 2. To examine whether there is a connection between the histological type of the tumor and age and sex 3. To show the analyzed predictive molecular markers in adenocarcinoma and squamous cell carcinoma 4. To show general survival by histological type of tumor