Adenocarcinoma:
Chapter: 12
One of the most common primary lung carcinomas, which appears to be increasing in incidence, and now may be more common than squamous cell carcinoma. This tumor is usually peripheral in location and often is associated with scarring, leading to pleural puckering. This neoplasm may vary in histologic appearance with some tumors having well formed glands, others having a papillary architecture, and yet others being less differentiated and having a solid appearance. Most pulmonary adenocarcinomas are mucin positive, a feature which may be helpful in correctly classifying poorly differentiated (solid) adenocarcinomas.
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