Twenty years after KBP-2000-CPHG study and ten years after KBP-2010-CPHG study, the CPHG proposes to conduct a new epidemiological study on primary PLC in order to evaluate and analyze the changes that have occurred over the last decade.

Primary endpoint:

Estimate 1-year- and 5-year-mortality rates in patients with PLC.

Secondary endpoints:

• Describe PLC patient population managed by pulmonologists at French General Hospitals in 2020
• Describe PLC diagnostic and therapeutic management by pulmonologists at French General Hospitals in 2020 and compare them to KBP-2000-CPHG and KBP-2010-CPHG studies
• Estimate prognostic factors
• Compare patient and tumor characteristics to those observed for KBP-2010-CPHG and KBP-2000-CPHG studies
• Compare observed survival rates to those reported for KBP-2000-CPHG and KBP-2010-CPHG studies

Inclusion Criteria:

• Age ≥ 18 years
• Primary Lung Cancer histologically (or cytologically or presence of a mutation on liquid biopsy with compatible imaging) proven between January 1st and December 31st, 2020*
• Follow-up by a lung specialist at a General Hospital
• Oral informed consent * date of collected sample

Exclusion Criteria:

• Age < 18 years
• Secondary lung cancer
• Recurrence of same histological type PLC- left to the investigator discretion according to the clinic and the imagery
• Previous enrolment in the study
• Freedom deprived patient following a legal or administrative decision
• Patient unable to give his(her) consent

Primary Lung Cancer histologically proven between January 1st and December 31st, 2020