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==Classification Based on ==
==Classification Based on ==
===Malignant Tumors==
==Malignant Tumors==
Adenocarcinomas account for 99% of breast cancer.
 
*Ductal:
{| style="border: 0px; font-size: 90%; margin: 3px; width: 800px"
:*'''ductal carcinoma in situ (DCIS):''' ~10%
|valign=top|
::*comedo type: ~60% of DCIS
|+
::*non comedo type: ~40% of DCIS
! style="background: #4479BA; width: 150px;" | {{fontcolor|#FFF|Type}}
:::*papillary
! style="background: #4479BA; width: 300px;" | {{fontcolor|#FFF|Subtype}}
:::*micropapillary
|-
:::*cribriform
| style="padding: 5px 5px; background: #DCDCDC; font-weight: bold" |
:::*solid
'''Adenocarcinoma'''<ref name = class> Breast Neoplasm. Radiopedia. (2015) http://radiopaedia.org/articles/breast-neoplasms Accessed on January 16, 2016</ref>
::*intracystic papillary carcinoma in situ
|-
:*'''invasive ductal carcinoma'''
| style="padding: 5px 5px; background: #DCDCDC; font-weight: bold" |
::*invasive ductal carcinoma not otherwise specified (NOS): ~65%
'''Ductal'''
::*tubular carcinoma of breast: ~7-8%
| style="padding: 5px 5px; background: #F5F5F5;" |
:::*tubulolobular carcinoma of breast
*Ductal carcinoma in situ (DCIS)
::*medullary carcinoma of breast (MCB): ~2%
:*comedo type: ~60% of DCIS
::*mucinous (colloid) carcinoma: ~2%
:*non comedo type: ~40% of DCIS
::*malignant papillary lesions of the breast
::*papillary
:::*papillary carcinoma of breast: 1-2% 1
::*micropapillary
::*Paget's disease of breast
::*cribriform
::*solid
:*intracystic papillary carcinoma in situ
*'''invasive ductal carcinoma'''
:*invasive ductal carcinoma not otherwise specified (NOS): ~65%
:*tubular carcinoma of breast: ~7-8%
::*tubulolobular carcinoma of breast
:*medullary carcinoma of breast (MCB): ~2%
:*mucinous (colloid) carcinoma: ~2%
:*malignant papillary lesions of the breast
::*papillary carcinoma of breast: 1-2% 1
|-
| style="padding: 5px 5px; background: #DCDCDC; font-weight: bold" |
'''Lobular'''
| style="padding: 5px 5px; background: #F5F5F5;" |
*lobular carcinoma in situ (LCIS)
*invasive lobular carcinoma: ~10%
|-
| style="padding: 5px 5px; background: #DCDCDC; font-weight: bold" |
'''Other malignant breast tumors'''
| style="padding: 5px 5px; background: #F5F5F5;" |
*inflammatory carcinoma of breast: 1-4%
*Paget disease of the nipple
*triple negative and basal-like breast cancers
*metaplastic carcinoma of the breast
*adenoid cystic carcinoma of the breast: <0.4%
*apocrine carcinoma of the breast
|-
| style="padding: 5px 5px; background: #DCDCDC; font-weight: bold" |
'''Sarcoma'''
| style="padding: 5px 5px; background: #F5F5F5;" |
*angiosarcoma of the breast
*fibrosarcoma of breast
*extra-skeletal osteosarcoma of breast
*malignant phyllodes tumor
*angiosarcoma
*rhabdomyosarcoma
|-
| style="padding: 5px 5px; background: #DCDCDC; font-weight: bold" |
'''Lymphoma'''
| style="padding: 5px 5px; background: #F5F5F5;" |
*Non-hodgkin lymphoma
|-
| style="padding: 5px 5px; background: #DCDCDC; font-weight: bold" |
'''Metastases to the breast'''
| style="padding: 5px 5px; background: #F5F5F5;" |
The most common extra-mammary cancers that metastasise to breast are:
*[[lymphoma]]/[[leukaemia]]: most common extra mammary source
*[[melanoma]]
*[[sarcomas]]
*[[prostate cancer]]: considered on the most frequent primary sites in men 4
*[[lung cancer]]
*[[gastric cancer]]
*[[ovarian cancer]]
*[[renal cell cancer]]
|-
|}

Revision as of 23:40, 16 January 2016

Classification Based on

Malignant Tumors
Type Subtype

Adenocarcinoma[1]

Ductal

  • Ductal carcinoma in situ (DCIS)
  • comedo type: ~60% of DCIS
  • non comedo type: ~40% of DCIS
  • papillary
  • micropapillary
  • cribriform
  • solid
  • intracystic papillary carcinoma in situ
  • invasive ductal carcinoma
  • invasive ductal carcinoma not otherwise specified (NOS): ~65%
  • tubular carcinoma of breast: ~7-8%
  • tubulolobular carcinoma of breast
  • medullary carcinoma of breast (MCB): ~2%
  • mucinous (colloid) carcinoma: ~2%
  • malignant papillary lesions of the breast
  • papillary carcinoma of breast: 1-2% 1

Lobular

  • lobular carcinoma in situ (LCIS)
  • invasive lobular carcinoma: ~10%

Other malignant breast tumors

  • inflammatory carcinoma of breast: 1-4%
  • Paget disease of the nipple
  • triple negative and basal-like breast cancers
  • metaplastic carcinoma of the breast
  • adenoid cystic carcinoma of the breast: <0.4%
  • apocrine carcinoma of the breast

Sarcoma

  • angiosarcoma of the breast
  • fibrosarcoma of breast
  • extra-skeletal osteosarcoma of breast
  • malignant phyllodes tumor
  • angiosarcoma
  • rhabdomyosarcoma

Lymphoma

  • Non-hodgkin lymphoma

Metastases to the breast

The most common extra-mammary cancers that metastasise to breast are:

  1. ↑ Breast Neoplasm. Radiopedia. (2015) http://radiopaedia.org/articles/breast-neoplasms Accessed on January 16, 2016
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