Inclusion Criteria:  Aged 18-80 5 year or more survivor of HL Any of: a) treated with radiotherapy for HL with radiation dose to the lung b) an alkylating agent containing chemotherapy regimen known to increase lung cancer risk Living within approximately 40 miles of The Christie Hospital  Exclusion Criteria:  Previous diagnoses of malignant neoplasm of trachea, bronchus, lung, thymus or pleura A current diagnosis of metastatic cancer Residents in nursing homes or housebound Had a CT scan of the thorax within the last 12 months Pregnant women Unable to provide consent