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==Classification==
==Classification==
'''Classification of [[breast lumps]] based on [[epithelial hyperplasia]]<ref name="pmid16034008">{{cite journal| author=Hartmann LC, Sellers TA, Frost MH, Lingle WL, Degnim AC, Ghosh K et al.| title=Benign breast disease and the risk of breast cancer. | journal=N Engl J Med | year= 2005 | volume= 353 | issue= 3 | pages= 229-37 | pmid=16034008 | doi=10.1056/NEJMoa044383 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=16034008  }} </ref>'''
'''Classification of [[breast lumps]] based on [[epithelial hyperplasia]]<ref name="pmid16034008">{{cite journal| author=Hartmann LC, Sellers TA, Frost MH, Lingle WL, Degnim AC, Ghosh K et al.| title=Benign breast disease and the risk of breast cancer. | journal=N Engl J Med | year= 2005 | volume= 353 | issue= 3 | pages= 229-37 | pmid=16034008 | doi=10.1056/NEJMoa044383 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=16034008  }} </ref>'''
*Approximately 65% of all BBD considered as [[nonproliferative]](NP)with relative cancer risk of 1.2, 1.4 times:
*Approximately 65% of all benign breast disease considered as [[nonproliferative]](NP)with relative cancer risk of 1.2, 1.4 times:
**Simple cyst
**Simple cyst
**Fibrosis
**Fibrosis
Line 29: Line 29:
** Apocrine atypia
** Apocrine atypia
** Secretory atypia
** Secretory atypia
'''Classification of [[benign breast lesion]] regarding to [[histological region]]''':
*Terminal and lobular ducts
**Acinar distention
***Cyst
**Intralobular connective tissue proliferation
***Sclerosing adenosis
***Fibroadenoma
***Phyllodes tumor
***Hamartoma
**Epithelial changes in terminal duct lobaular units (TDLU)
***Apocrine metaplasia
***Ductal and lobular hyperplasia, usual and typical
***Papillomatosis
***Intracystic papilloma
*Ductal system


==References==
==References==
{{Reflist|2}}
{{Reflist|2}}

Revision as of 16:48, 6 December 2018


Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Shadan Mehraban, M.D.[2]

Overview

Classification

Classification of breast lumps based on epithelial hyperplasia[1]

  • Approximately 65% of all benign breast disease considered as nonproliferative(NP)with relative cancer risk of 1.2, 1.4 times:
    • Simple cyst
    • Fibrosis
    • Fibroadenoma (simple)
    • Columnar alteration (Simple)
    • Apocrine metaplasia (simple)
    • Mild ductal hyperplasia
  • Approximately 30% of total are classifed as proliferative disease(PD) with relative cancer risk of 1.7, 2.1 times
    • Usual ductal hyperplasia
    • Sclerosing adenosis
    • Columnar hyperplasia
    • papilloma
    • Radical scar
  • Approximately 5% to 8% of the rest regarded to PD with atypia with relative cancer risk more than 4 times
    • Atypical lobar hyperplasia
    • Lobular carcinoma in situ
    • Atypical ductal hyperplasia
  • Unclear risk
    • Mucocele like tumor
    • Apocrine atypia
    • Secretory atypia

Classification of benign breast lesion regarding to histological region:

  • Terminal and lobular ducts
    • Acinar distention
      • Cyst
    • Intralobular connective tissue proliferation
      • Sclerosing adenosis
      • Fibroadenoma
      • Phyllodes tumor
      • Hamartoma
    • Epithelial changes in terminal duct lobaular units (TDLU)
      • Apocrine metaplasia
      • Ductal and lobular hyperplasia, usual and typical
      • Papillomatosis
      • Intracystic papilloma
  • Ductal system

References

  1. Hartmann LC, Sellers TA, Frost MH, Lingle WL, Degnim AC, Ghosh K; et al. (2005). "Benign breast disease and the risk of breast cancer". N Engl J Med. 353 (3): 229–37. doi:10.1056/NEJMoa044383. PMID 16034008.