Flat ductal epithelial atypia
Flat ductal epithelial atypia
Definition
A breast lesion characterized by the presence of dilated terminal ductal lobular units in which the epithelial lining has been replaced by a single layer of mildly atypical cells, or there is atypical, monotonous epithelial hyperplasia of three to five layers. This lesion relates to columnar cell change with atypia and columnar cell hyperplasia with atypia.
Also known as clinging carcinoma, DIN 1A, ductal intraepithelial neoplasia, grade 1A, FEA, flat ductal epithelial atypia, flat ductal epithelial atypia of the breast, flat epithelial atypia, flat epithelial atypia of the breast — per MONDO
Also identified as
Affected Organs
| Organ | Involvement | Source |
|---|---|---|
| Breast | Disease Has Associated Anatomic Site | NCIT · CC BY 4.0 |
| Breast | Disease Has Primary Anatomic Site | NCIT · CC BY 4.0 |