Case 23. (6 Apr. 1998)
Diagnosis: Lung cancer associated with Asbestosis
Bronchogenic carcinoma is estimated to develop in 20% to 25%
of asbestos workers who are heavily exposed. The association between asbestos
exposure and bronchogenic carcinoma is now accepted as being causal in
nature. There is a typical latency period of approximately 20 years, and
the greater of exposure to asbestos, and higher the risk of lung cancer.
In asbestosis patients, lung cancer must be differentiated from benign
fibrotic masses and rounded atelectasis. Oblique radiograph and CT may
be helpful as in this case.
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