ArticleModern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc2019
Hyaline fibrous involution of breast lobules: a histologic finding associated with germline BRCA mutation.
Article in Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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1 citing paper in PubMed, 2 citations in OpenAlex.
- Molecular Trajectory ofFrontiers in oncology · 2020Review
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10 authors at 3 institutions in 1 country.
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Abstract
We describe the histology and the frequency of a histologic entity that we term "hyaline fibrous involution", which is characterized by symmetric and regular deposition of basal lamina-like periacinar hyaline material in association with atrophic epithelium, in breast samples from patients with either benign breast disease or germline BRCA mutation. Women with germline BRCA mutation (n = 93) who underwent prophylactic mastectomy (BRCA group) were compared to an age-matched sample of women who underwent biopsy for benign breast disease (n = 93). Median age was 45 years (range, 25-72 years). A single H&E section of each subject's benign breast tissue was reviewed. The total number of terminal duct lobular units and the number of terminal duct lobular units with hyaline fibrous involution were recorded for each case. The presence of any hyaline fibrous involution lobules and the within-sample proportion of hyaline fibrous involution lobules relative to total lobules were compared between groups. Presence of any hyaline fibrous involution was significantly more frequent in the BRCA group compared to the benign breast disease group, 47% vs. 15% (p < 0.0001, adjusted for total lobules). In women with any hyaline fibrous involution lobules, these unusual lobules were similarly rare in both groups, with median proportion of hyaline fibrous involution-positive lobules relative to all lobules of 0.03 in BRCA specimens (n = 44) and 0.03 in the benign breast disease group (n = 14). Within the BRCA group, frequency of any hyaline fibrous involution present was significantly higher in the perimenopausal age group (45-55 years: 63%) compared to other age groups (<45 years, 44%; >55 years, 15%; p = 0.05 and p = 0.02, respectively). Increased presence of hyaline fibrous involution in the setting of BRCA mutation suggests that it may represent a pathologic entity, possibly reflecting abnormal involution or an abnormal response to DNA damage.
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