Marked atypia of type 2 pneumocytes is a characteristic finding in association with treatment with busulfan and other chemotherapeutic agents.
Atypia (from Greek, a + typos, without type; a condition of being irregular or nonstandard)[1] is a histopathologic term for a structural abnormality in a cell, i.e. it is used to describe atypical cells.
Atypia can be caused by an infection or irritation. if , for example it were diagnosed in a Pap smear, In the uterus it is more likely to be precancerous.
The related concept of dysplasia refers to an abnormality of development,[2] and includes abnormalities on larger, histopathologic scales.
^Mosby's Medical Dictionary (8th edition). Elsevier.
Atypia (from Greek, a + typos, without type; a condition of being irregular or nonstandard) is a histopathologic term for a structural abnormality in a...
Nuclear atypia refers to abnormal appearance of cell nuclei. It is a term used in cytopathology and histopathology. Atypical nuclei are often pleomorphic...
previously had four categories: simple hyperplasia without atypia, complex hyperplasia without atypia, simple atypical hyperplasia and complex atypical hyperplasia...
as having architectural atypia and having (mild, moderate, or severe) cytologic (melanocytic) atypia. Usually, cytologic atypia is of more important clinical...
acanthoma) Dull or lackluster surface.: 769 Seborrheic keratosis with squamous atypia Dull or lackluster surface, and with round, loosely packed nests of cells...
"hypomelanotic blue nevus") is a cutaneous condition characterized by mild atypia and pleomorphism.: 701 A malignant blue nevus is a cutaneous condition...
is a benign (noncancerous) cellular hyperplasia in which cells show some atypia. In this condition, cells look abnormal under a microscope and are increased...
epithelium, microscopic papillary projections, cellular pleomorphism, nuclear atypia, and mitotic activity. In addition, there can be no stromal invasion, which...
II Benign (colloid and follicular cells) 0 - 3% Clinical follow-up III Atypia of undetermined significance/follicular lesion of undetermined significance...
formation. However, PAM may occur without atypia, which has no risk of malignant transformation, or with atypia. It is very important to determine at which...
induce epidermal hyperplasia, and decrease keratinocyte and melanocyte atypia. Topical tretinoin is the most extensively investigated retinoid therapy...
proliferation is admixed with a second population of proliferative cells without atypia. The proliferation completely involves the terminal ductal lobular unit(s)...
varying degrees: there may be widening of the intracellular spaces, cytologic atypia such as abnormally large nuclei, and a mild chronic inflammatory infiltrate...
various HPV-associated lesions. Koilocytosis or koilocytic atypia or koilocytotic atypia are terms used in histology and cytology to describe the presence...
radiologically mimic malignancy, i.e. cancer. Radial scar is associated with atypia and/or malignancy and may be an independent risk factor for the development...
WHO grading scheme is based on the appearance of certain characteristics: atypia, mitosis, endothelial proliferation, and necrosis. These features reflect...
absent. Bell's criteria do not apply to extrauterine tumors No or mild atypia, no tumor cell necrosis ⇒ leiomyoma. If 5 or more mitotic figures are present...
trichilemmal cyst. The tumor is clinically benign, although it may display nuclear atypia, dyskeratotic cells, and mitotic figures. These features can be misleading...
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