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Atypia (from Gr****, a + typos,
without type; a
condition of
being irregular or nonstandard) is a
histopathologic term for a
structural abnormality in a...
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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...
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Nuclear atypia refers to
abnormal appearance of cell nuclei. It is a term used in
cytopathology and histopathology.
Atypical nuclei are
often pleomorphic...
- "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...
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Micrograph showing prominent hyperkeratosis in skin
without atypia. H&E stain....
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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...
