Radiological Investigations & Presentations Involved in Bronchial Carcinoma
This is the commonest
cancer in males and second commonest cancer in females after breast cancer.
For practical purposes lung cancer can be divided into small cell lung cancer,
comprising about 20% and non-small cell lung cancer, comprising 80 percent.
small cell lung cancer the disease has almost always disseminated by the time
of diagnosis and surgery is thus inappropriate. As opposed to non-small cell lung
strength of the association between cigarette smoking and bronchial carcinoma
overshadows any other aetiological factors, but there is a higher incidence of
bronchial carcinoma in urban compared with rural areas.
This is the most valuable screening test for bronchial carcinoma. It is relatively insensitive test, however, since the tumour mass needs to be between 1 and 2 cm in size to be recognized reliably. CT scanning can identify small tumour masses, but is at present too time consuming and expensive to replace the chest X-ray.
70 per cent of all bronchial carcinomas arise centrally, the rest peripherally
(particularly adenocarcinomas). At the time of clinical presentation the chest
X-ray will demonstrate over 90 percent of carcinomas.
carcinoma can appear as round shadows on a chest X-ray. Characteristically the
edge of the tumour has a fluffy or spiked appearance, though sometimes it may
be entirely smooth with cavitations, particularly when the tumour is epidermoid
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