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{{Lipoma}}
{{Lipoma}}
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{{CMG}} {{AE}} {{Sahar}}


==Overview==
==Overview==
Lipoma may be classified into 12 subtypes: adenolipomas, angiolipoleiomyomas, [[angiolipoma]], cerebellar pontine angle and internal auditory canal lipomas, chondroid lipomas, [[corpus callosum]], hibernomas, intradermal spindle cell lipomas, neural fibrolipomas, pleomorphic lipomas, spindle-cell lipomas, and superficial subcutaneous lipomas.
Lipoma may be [[Classification|classified]] into different subtypes depending on the [[classification]] system. They may be classified according to the [[anatomical]] location, the related [[tissues]] or other characteristics.
==Classification==
Lipomas can be [[Classification|classified]] according to their [[anatomical]] locations into:<ref name="Al-QattanAl-Lazzam2012">{{cite journal|last1=Al-Qattan|first1=M. M.|last2=Al-Lazzam|first2=A. M.|last3=Al Thunayan|first3=A.|last4=Al Namlah|first4=A.|last5=Mahmoud|first5=S.|last6=Hashem|first6=F.|last7=Tulbah|first7=A.|title=CLASSIFICATION OF BENIGN FATTY TUMOURS OF THE UPPER LIMB|journal=Hand Surgery|volume=10|issue=01|year=2012|pages=43–59|issn=0218-8104|doi=10.1142/S0218810405002541}}</ref>
*[[Dermal]]
*[[Subcutaneous]]
*[[Sub-fascial]]


==Classification==
Lipomas can be classified according to their [[anatomical]] locations into:<ref name="Al-QattanAl-Lazzam2012">{{cite journal|last1=Al-Qattan|first1=M. M.|last2=Al-Lazzam|first2=A. M.|last3=Al Thunayan|first3=A.|last4=Al Namlah|first4=A.|last5=Mahmoud|first5=S.|last6=Hashem|first6=F.|last7=Tulbah|first7=A.|title=CLASSIFICATION OF BENIGN FATTY TUMOURS OF THE UPPER LIMB|journal=Hand Surgery|volume=10|issue=01|year=2012|pages=43–59|issn=0218-8104|doi=10.1142/S0218810405002541}}</ref>
*Dermal
*Subcutaneous
*Subfascial
Another suggested [[classification]] is according to the related structure:
Another suggested [[classification]] is according to the related structure:
*Muscles-related lipoma
*[[Muscles]]-related lipoma
*Nerve-related lipoma
*[[Nerve]]-related lipoma
*Bone-related lipoma
*[[Bone]]-related lipoma
*Synovium-related lipoma
*[[Synovial]]-related lipoma
World health organization (WHO) classification system classified lipomatous tumors into the following subtypes:<ref name="BancroftKransdorf2006">{{cite journal|last1=Bancroft|first1=Laura W.|last2=Kransdorf|first2=Mark J.|last3=Peterson|first3=Jeffrey J.|last4=O’Connor|first4=Mary I.|title=Benign fatty tumors: classification, clinical course, imaging appearance, and treatment|journal=Skeletal Radiology|volume=35|issue=10|year=2006|pages=719–733|issn=0364-2348|doi=10.1007/s00256-006-0189-y}}</ref>
'''World health organization (WHO)''' [[classification]] system [[Classification|classified]] lipomatous [[tumors]] into the following sub types:<ref name="BancroftKransdorf2006">{{cite journal|last1=Bancroft|first1=Laura W.|last2=Kransdorf|first2=Mark J.|last3=Peterson|first3=Jeffrey J.|last4=O’Connor|first4=Mary I.|title=Benign fatty tumors: classification, clinical course, imaging appearance, and treatment|journal=Skeletal Radiology|volume=35|issue=10|year=2006|pages=719–733|issn=0364-2348|doi=10.1007/s00256-006-0189-y}}</ref>
*Lipoma
*Lipoma
*Lipomatosis
*[[Lipomatosis]]
*Lipomatosis of nerve
*Lipomatosis of [[nerve]]
*Lipoblastoma/lipoblastomatosis
*Lipoblastoma/lipoblastomatosis
*Angiolipoma
*[[Angiolipoma]]
*Myolipoma of soft tissue
*Myolipoma of [[soft tissue]]
*Chondroid lipoma
*Chondroid lipoma
*Spindle-cell lipoma/pleomorphic lipoma
*Spindle-cell lipoma/pleomorphic lipoma
*Hibernoma
*Hibernoma
Weiss and Goldblum classified Lipomatous [[tumors]] into the following subtypes. This classification system has shown more clinical utility.<ref>{{cite book | last = Goldblum | first = John | title = Enzinger and Weiss's soft tissue tumors | publisher = Saunders/Elsevier | location = Philadelphia, PA | year = 2014 | isbn = 9781455737635 }}</ref>
'''Weiss and Goldblum''' classified Lipomatous [[tumors]] into the following subtypes. This [[classification]] system has shown more clinical utility.<ref>{{cite book | last = Goldblum | first = John | title = Enzinger and Weiss's soft tissue tumors | publisher = Saunders/Elsevier | location = Philadelphia, PA | year = 2014 | isbn = 9781455737635 }}</ref>
* Lipoma which may be classified as superficial or deep, single or multiple
* Lipoma which may be classified as superficial or deep, single or multiple
*Variants of lipoma including:
*Variants of lipoma including:
**Angiolipoma
**[[Angiolipoma]]
**Myolipoma
**Myolipoma
**Chondroid lipoma
**Chondroid lipoma
Line 35: Line 35:
**Lpindle-cell/pleomorphic lipoma
**Lpindle-cell/pleomorphic lipoma
*Lipomatous tumors including:
*Lipomatous tumors including:
**Intramuscular lipoma
**[[Intramuscular]] lipoma
**Intermuscular lipoma
**Intermuscular lipoma
**Lipomatosis of nerve
**Lipomatosis of [[nerve]]
**Lipoma of the tendon sheath and joint
**Lipoma of the [[tendon sheath]] and [[joint]]
*Infiltrating lipomas including  
*Infiltrating lipomas including  
**Diffuse lipomatosis
**Diffuse lipomatosis

Latest revision as of 19:24, 8 November 2019

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Sahar Memar Montazerin, M.D.[2]

Overview

Lipoma may be classified into different subtypes depending on the classification system. They may be classified according to the anatomical location, the related tissues or other characteristics.

Classification

Lipomas can be classified according to their anatomical locations into:[1]

Another suggested classification is according to the related structure:

World health organization (WHO) classification system classified lipomatous tumors into the following sub types:[2]

Weiss and Goldblum classified Lipomatous tumors into the following subtypes. This classification system has shown more clinical utility.[3]

  • Lipoma which may be classified as superficial or deep, single or multiple
  • Variants of lipoma including:
    • Angiolipoma
    • Myolipoma
    • Chondroid lipoma
    • Lipoblastoma
    • Lpindle-cell/pleomorphic lipoma
  • Lipomatous tumors including:
  • Infiltrating lipomas including
    • Diffuse lipomatosis
    • Symmetric lipomatosis
    • Adiposis dolorosa
  • Hibernoma

References

  1. Al-Qattan, M. M.; Al-Lazzam, A. M.; Al Thunayan, A.; Al Namlah, A.; Mahmoud, S.; Hashem, F.; Tulbah, A. (2012). "CLASSIFICATION OF BENIGN FATTY TUMOURS OF THE UPPER LIMB". Hand Surgery. 10 (01): 43–59. doi:10.1142/S0218810405002541. ISSN 0218-8104.
  2. Bancroft, Laura W.; Kransdorf, Mark J.; Peterson, Jeffrey J.; O’Connor, Mary I. (2006). "Benign fatty tumors: classification, clinical course, imaging appearance, and treatment". Skeletal Radiology. 35 (10): 719–733. doi:10.1007/s00256-006-0189-y. ISSN 0364-2348.
  3. Goldblum, John (2014). Enzinger and Weiss's soft tissue tumors. Philadelphia, PA: Saunders/Elsevier. ISBN 9781455737635.


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