Histologic type of lung cancer in relation to smoking habits, year of diagnosis and sites of metastases.

摘要: A study was made of histologic type lung cancer in relation to smoking habit, year diagnosis, age and sites metastasis. It comprised 662 autopsies men during the period from 1955 1972. As classified by WHO system, 35.2 percent were epidermoid carcinoma, 24.6 small cell 25.2 adenocarcinoma 14.2 large undifferentiated carcinoma. The six non-smokers series all found be class 3, adenocarcinoma. No clearcut consistent relationships observed. Although there a steady decrease incidence carcinoma this time period, observation did not prove statistically significant. Small carcinomas increased with amount but for groups. Adenocarcinomas decreased advancing Metastases 96.3 cases most frequently involved regional lymph nodes, liver, brain, distant adrenals bone. showed greatest percentage involvement those major same sites, lowest percentage.