Breast lumps classification

Breast lumps Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:

Overview

There is no established system for the classification of [disease name].

OR

[Disease name] may be classified according to [classification method] into [number] subtypes/groups: [group1], [group2], [group3], and [group4].

OR

[Disease name] may be classified into [large number > 6] subtypes based on [classification method 1], [classification method 2], and [classification method 3]. [Disease name] may be classified into several subtypes based on [classification method 1], [classification method 2], and [classification method 3].

OR

Based on the duration of symptoms, [disease name] may be classified as either acute or chronic.

OR

If the staging system involves specific and characteristic findings and features: According to the [staging system + reference], there are [number] stages of [malignancy name] based on the [finding1], [finding2], and [finding3]. Each stage is assigned a [letter/number1] and a [letter/number2] that designate the [feature1] and [feature2].

OR

The staging of [malignancy name] is based on the [staging system].

OR

There is no established system for the staging of [malignancy name].

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:[2]

   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
       Ductal ectasia
       Intraductal papilloma
   Lesion of different origin
       Fatty tissue lesion
           Lipoma
           Liponecrosis
       Fibrous tissue lesions
           Focal fibrosis
           Diabetic mastopathy
           Pseudoangiomatous stromal hyperplasia (PASH)
           Myofibroblastoma
       Vascular origin
           Hemangioma
       Inflammatory origin
           Mastitis/abscess
           Tuberclosis and sarcoidosis
           Foreign body granuloma and siliconoma
       Lymph node origin
           Inflammatory lymoh nodes