A 4 cm peripheral lesion seen on chest Xray was resected. The tumor consists of large irregularly shaped glands composed of neoplastic cells. Tumor necrosis occurs when the tumor grows rapidly and its blood supply is insufficient for its metyabolic needs. This tumor is best classified as bronchogenic carcinoma, a term that refers to the origin of the malignant cells in the bronchial or brohchiolar epithelium.
Bronchogenic carcinoma is divided into small cell and non-small cell types.
Adenocarcinoma is the most common type of lung cancer found in women and non-smokers. The lesions are most often peripherally located, tend to be smaller, and may be associated with scarring.