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==Pathophysiology==
==Pathophysiology==
[[Lymph vessels]] are thin walled, valved structures that carry lymph in a passive fashion, assisted by aforementioned valves.<ref name="pmid17440362">{{cite journal| author=Suami H, Taylor GI, Pan WR| title=The lymphatic territories of the upper limb: anatomical study and clinical implications. | journal=Plast Reconstr Surg | year= 2007 | volume= 119 | issue= 6 | pages= 1813-22 | pmid=17440362 | doi=10.1097/01.prs.0000246516.64780.61 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=17440362  }} </ref> Generally lymph vessels act as a reservoir for plasma and other substances including cells that leaked from the vascular system and lymph flows away from the tissues to lymph nodes and eventually to either the right lymphatic duct or the largest lymph vessel in the body, the [[thoracic duct]]. These vessels in turn drain into the right and left subclavian veins respectively.
*Lymphatic Vessels are thin walled, valved structures situated in deep dermis and sub-dermis tissues.<ref name="pmid17440362">{{cite journal| author=Suami H, Taylor GI, Pan WR| title=The lymphatic territories of the upper limb: anatomical study and clinical implications. | journal=Plast Reconstr Surg | year= 2007 | volume= 119 | issue= 6 | pages= 1813-22 | pmid=17440362 | doi=10.1097/01.prs.0000246516.64780.61 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=17440362  }} </ref>
 
*In general lymph follows the following pattern of drainage.
Lymphangitis most commonly occurs following invasion of microorganisms either from a traumatized skin or from a distal site of infection into the lymphatic vessels that leads to inflammation of the vessel.  The inflammation or infection then spreads proximally towards the regional lymph node.  Lymphangitis can occur in a normal, damaged or anatomically deformed lymphatic channels. Tissue protein and fluid accumulation can occur following lymphangitis, leading to non-pitting [[lymphedema]] and further predisposing to invasion of microorganisms.    
    Lymph--->Afferent lymphatics--->Regional lymph nodes---->Efferent lymphatics---->Cisterna chyli/Thoracic duct--->Venous Circulation.
Settings involved in pathogenesis of disease are
*Normal Lymphatic vessels:- Invasion of microorganisms either from a traumatized skin or from a distal site of infection into the lymphatic vessels that leads to inflammation of the vessel
*Anatomical abnormalities resulting in obstruction of lymphatic channels or damage to the lymphatic vessels as seen in setting of surgery, malignancy or trauma.<ref name="pmid1364813">{{cite journal| author=Simon MS, Cody RL| title=Cellulitis after axillary lymph node dissection for carcinoma of the breast. | journal=Am J Med | year= 1992 | volume= 93 | issue= 5 | pages= 543-8 | pmid=1364813 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=1364813  }} </ref>


==References==
==References==

Revision as of 15:05, 10 October 2016

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

Overview

Lymphangitis is inflammation of the lymphatic system, a system that is comprised of small vessels of the immune system that carry lymphatic fluid. The fluid is filtered in the lymph nodes and spleen, drained into the subclavian veins and finally returned back to the circulatory system.

Pathophysiology

  • Lymphatic Vessels are thin walled, valved structures situated in deep dermis and sub-dermis tissues.[1]
  • In general lymph follows the following pattern of drainage.
   Lymph--->Afferent lymphatics--->Regional lymph nodes---->Efferent lymphatics---->Cisterna chyli/Thoracic duct--->Venous Circulation.

Settings involved in pathogenesis of disease are

  • Normal Lymphatic vessels:- Invasion of microorganisms either from a traumatized skin or from a distal site of infection into the lymphatic vessels that leads to inflammation of the vessel
  • Anatomical abnormalities resulting in obstruction of lymphatic channels or damage to the lymphatic vessels as seen in setting of surgery, malignancy or trauma.[2]

References

  1. Suami H, Taylor GI, Pan WR (2007). "The lymphatic territories of the upper limb: anatomical study and clinical implications". Plast Reconstr Surg. 119 (6): 1813–22. doi:10.1097/01.prs.0000246516.64780.61. PMID 17440362.
  2. Simon MS, Cody RL (1992). "Cellulitis after axillary lymph node dissection for carcinoma of the breast". Am J Med. 93 (5): 543–8. PMID 1364813.

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