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Dysplasia is not considered a true adaptation; rather, it is thought to be related to hyperplasia and is sometimes called "atypical hyperplasia". Tissues prone to dysplasia include cervical and respiratory epithelium, where it is strongly associated with the development of cancer; it may also be involved in the development of breast cancer .
The process that occurs to form or produce a neoplasm is called neoplasia. The growth of a neoplasm is uncoordinated with that of the normal surrounding tissue, and persists in growing abnormally, even if the original trigger is removed. [3] [4] [5] This abnormal growth usually forms a mass, which may be called a tumour or tumor. [6]
The likelihood of the development to cancer is related to the degree of dysplasia. [11] Dysplasia is the earliest form of precancerous lesion which pathologists can recognize in a pap smear or in a biopsy. Dysplasia can be low grade or high grade. The risk of low-grade dysplasia transforming into high-grade dysplasia, and eventually cancer, is low.
Neoplasia is the medical term used for both benign and malignant tumors, or any abnormal, excessive, uncoordinated, and autonomous cellular or tissue growth. Desmoplastic reaction to breast cancer Desmoplasia refers to growth of dense connective tissue or stroma . [ 2 ]
The most common symptoms include: [5] [6] [7] Chronic cough; Shortness of breath or dyspnea when exercising or exerting one's self; Wheezing (less frequent) Hemoptysis (Infrequent) Symptoms may be present for many years prior to diagnosis and are often ascribed to other lung conditions.
Dysplasia is the earliest form of precancerous lesion recognizable in a biopsy. Dysplasia can be low-grade or high-grade. High-grade dysplasia may also be referred to as carcinoma in situ. Invasive carcinoma, usually simply called cancer, has the potential to invade and spread to surrounding tissues and structures, and may eventually be lethal.
English: Pie chart of the incidence of lung cancer types, sorted by histological subtypes, in turn sorted into how many are non-smokers versus smokers - defined as current or former smoker of more than 1 year of duration according to: Table 2 in: Kenfield SA, Wei EK, Stampfer MJ, Rosner BA, Colditz GA (2008).
Pie chart showing incidences of nonsmall-cell lung cancers as compared to small-cell carcinoma shown at right, with fractions of smokers versus nonsmokers shown for each type [4] The most common types of NSCLC are squamous-cell carcinoma, large-cell carcinoma, and adenocarcinoma, but several other types occur less frequently.