For each of the tumours listed on the left select the most appropriate association from the list on the right

The answer is D, E, C. The bronchial adenoma is a slow growing malignant tumour which protrudes into the bronchial lumen and invades lung locally. Many contain neurosecretory granules.

This type of tumour may be associated with endocrine symptoms; it usually occurs at the hilum, and is thought to be derived from Feyrter cells.

Mesotheliomas often show a mixed pattern of papillary adenocarcinoma and spindle cell tumour; it is associated with previous exposure to asbestos, particularly crocidolite.

The benign adenochondroma is often a chance finding on X-ray (A): it is a hamartomatous lesion consisting of cartilage and lung tissue. Adenocarcinoma of the lung usually arise at the periphery (B) and are often associated with scar tissue.