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...

"hypomelanotic blue nevus") is a cutaneous condition characterized by mild atypia and pleomorphism.: 701  A malignant blue nevus is a cutaneous condition...

acanthoma) Dull or lackluster surface.: 769  Seborrheic keratosis with squamous atypia Dull or lackluster surface, and with round, loosely packed nests of cells...

is a benign (noncancerous) cellular hyperplasia in which cells show some atypia. In this condition, cells look abnormal under a microscope and are increased...

vacuolization, and pseudonuclear inclusions. Five subtypes are recognized: Minimal atypia. Early secretory pattern. Secretory or hypersecretory pattern. Regenerative...

Hyperkeratosis Micrograph showing prominent hyperkeratosis in skin without atypia. H&E stain. Pronunciation /ˌhaɪpərkɛrəˈtoʊsɪs/ (hyper- + kerato- + -osis)...

and may in fact have a more unusual appearance than invasive cSCC. The atypia spans the full thickness of the epidermis, with the keratinocytes demonstrating...

carcinoma showing its typical features – prominent nucleoli, marked nuclear atypia, necrosis, and nuclear overlap. H&E stain. Specialty Urology, gynecology...

Histopathology of leiomyosarcoma shows variable atypia, often with cytoplasmic vacuoles at both ends of nuclei, and frequent mitoses....

epithelium, microscopic papillary projections, cellular pleomorphism, nuclear atypia, and mitotic activity. In addition, there can be no stromal invasion, which...

persisted for at least 25 years after biopsy. The relative risk associated with atypia was 4.24 (95 percent confidence interval, 3.26 to 5.41), as compared with...

Usual ductal hyperplasia with small cells that lack atypia....

Micrograph showing prominent hyperkeratosis in skin without atypia. H&E stain....

Low-grade appendiceal mucinous neoplasm: Minimal cytological atypia of the epithelial cells....

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...

(shrinking) and varying amounts of submucosal chronic inflammation. Epithelial atypia or dysplasia may be present. It may also present as a post-cricoid malignancy...

induce epidermal hyperplasia, and decrease keratinocyte and melanocyte atypia. Topical tretinoin is the most extensively investigated retinoid therapy...

mimic that of adenocarcinoma, but there is nuclear basophilia rather than atypia, and occasional basal cells can still be seen. About 20,000 protein coding...

II Benign (colloid and follicular cells) 0 - 3% Clinical follow-up III Atypia of undetermined significance/follicular lesion of undetermined significance...

proliferation is admixed with a second population of proliferative cells without atypia. The proliferation completely involves the terminal ductal lobular unit(s)...

malignant cells. Cell growth § Yeast cell size regulation Cytopathology Nuclear atypia Nuclear pleomorphism Turgeon, Mary Louise (2005). Clinical hematology: theory...

Tinea incognita Other names Tinea atypia Tinea incognita in the forearm of a child being treated for contact dermatitis Specialty Dermatology...

trichilemmal cyst. The tumor is clinically benign, although it may display nuclear atypia, dyskeratotic cells, and mitotic figures. These features can be misleading...

WHO grading scheme is based on the appearance of certain characteristics: atypia, mitosis, endothelial proliferation, and necrosis. These features reflect...

Hierarchical branching, exfoliated cell clusters, calcifications, up to moderate atypia, and pseudostratified, crowded epithelium with hobnailing. H&E stain. In...

varying degrees: there may be widening of the intracellular spaces, cytologic atypia such as abnormally large nuclei, and a mild chronic inflammatory infiltrate...

another section might show features concerning for severe cellular atypia. When cellular atypia is noted, a pathologist might indicate that the entire lesion...