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Oncology . Adenocarcinoma in situ(AIS) of the lung—previously included in the category of "bronchioloalveolar carcinoma" (BAC)—is a subtype of lung adenocarcinoma. It tends to arise in the distalbronchiolesor alveoliand is defined by a non-invasive growth pattern. This small solitary tumor exhibits pure alveolar distribution (lepidic growth ...
The concept of grading of the tumors of the central nervous system, agreeing for such the regulation of the "progressiveness" of these neoplasias (from benign and localized tumors to malignant and infiltrating tumors), dates back to 1926 and was introduced by P. Bailey and H. Cushing, in the elaboration of what turned out the first systematic classification of gliomas.
Adenocarcinoma of the lung. A gross pathological specimen of a pulmonary adenocarcinoma, removed in a lobectomy. Adenocarcinoma of the lung is the most common type of lung cancer, and like other forms of lung cancer, it is characterized by distinct cellular and molecular features. [ 1] It is classified as one of several non-small cell lung ...
Specialty. Oncology. Squamous-cell carcinoma ( SCC) of the lung is a histologic type of non-small-cell lung carcinoma (NSCLC). It is the second most prevalent type of lung cancer after lung adenocarcinoma and it originates in the bronchi. Its tumor cells are characterized by a squamous appearance, similar to the one observed in epidermal cells.
The main treatment arms of phase 3 clinical trials providing immunotherapy in the first line for patients with non-small cell lung cancer. [56] Non-small cell lung cancer (NSCLC) cells expressing programmed death-ligand 1 (PD-L1) could interact with programmed death receptor 1 (PD-1) expressed on the surface of T cells, and result in decreased ...
Lung cancer is a large and exceptionally heterogeneous family of malignancies. Over 50 different histological variants are explicitly recognized within the 2004 revision of the World Health Organization (WHO) typing system ("WHO-2004"), currently the most widely used lung cancer classification scheme.
The International Classification of Diseases, Clinical Modification (ICD-9-CM) was an adaptation created by the US National Center for Health Statistics (NCHS) and used in assigning diagnostic and procedure codes associated with inpatient, outpatient, and physician office utilization in the United States. The ICD-9-CM is based on the ICD-9 but ...
Oncology. Histopathologic image from ductal cell carcinoma in situ (DCIS) of breast (hematoxylin and eosin stain) Ductal carcinoma in situ ( DCIS ), also known as intraductal carcinoma, is a pre-cancerous or non-invasive cancerous lesion of the breast. [ 1][ 2] DCIS is classified as Stage 0. [ 3] It rarely produces symptoms or a breast lump ...