The 2004 WHO classification of lung cancer contained four major patterns of adenocarcinoma: bronchioloalveolar, acinar, papillary and solid pattern with the most common pattern consisting of a mixture ...

Histological subtyping of surgically resected lung adenocarcinoma has been shown to be of prognostic significance, and limited surgical resection has been proposed as a treatment of choice for ...

In the evaluation of tumors, pathologic assessment includes determination of tumor type, grade, and extent of tumor invasion, which is a primary consideration in determining tumor stage. The ...

(a) Tumor cells are uniform with round to oval nuclei and inconspicuous nucleoli, arranged in a nested/organoid pattern. Other growth patterns include pseudoglandular, trabecular, and follicular with ...