Orbital cellulitis causes: Difference between revisions

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Revision as of 18:07, 3 August 2015

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Orbital cellulitis occurs commonly from bacterial infection spread by the paranasal sinuses. Other ways in which orbital cellulitis may occur is from infection in the blood stream and from an eyelid skin infection. Upper respiratory infection, sinusitis, trauma to the eye, ocular or periocular infection and systemic infection all increase one’s risk of orbital cellulitis.Staphylococcus aureus, Streptococcus pneumoniae and beta-hemolytic streptococci are three bacteria that can be responsible for orbital cellulitis.

Causes

Life Threatening Causes

Common Causes

Causes by Organ System

Cardiovascular	No underlying causes
Chemical/Poisoning	No underlying causes
Dental	No underlying causes
Dermatologic	No underlying causes
Drug Side Effect	No underlying causes
Ear Nose Throat	No underlying causes
Endocrine	No underlying causes
Environmental	No underlying causes
Gastroenterologic	No underlying causes
Genetic	No underlying causes
Hematologic	No underlying causes
Iatrogenic	No underlying causes
Infectious Disease	No underlying causes
Musculoskeletal/Orthopedic	No underlying causes
Neurologic	No underlying causes
Nutritional/Metabolic	No underlying causes
Obstetric/Gynecologic	No underlying causes
Oncologic	No underlying causes
Ophthalmologic	No underlying causes
Overdose/Toxicity	No underlying causes
Psychiatric	No underlying causes
Pulmonary	No underlying causes
Renal/Electrolyte	No underlying causes
Rheumatology/Immunology/Allergy	No underlying causes
Sexual	No underlying causes
Trauma	No underlying causes
Urologic	No underlying causes
Miscellaneous	No underlying causes

Causes in Alphabetical Order

References

Template:WH Template:WS

@@ Line 7: / Line 7: @@
 ==Causes==
+===Life Threatening Causes===
-* [[Staphylococcus aureus]], is a gram-positive bacterium which is the most common of staph infections. Staphylococcus aureus infection can spread to the orbit from the skin. Staph organisms are able to produce toxins which promote their virulence which leads to the inflammatory response seen in orbital cellulitis. Staphylococcus infections are identified by a cluster arrangement on gram stain. Staphylococcus aureus forms large yellow colonies (which is distinct from other Staph infections such as Staphylococcus epidermis which forms white colonies).
+===Common Causes===
+===Causes by Organ System===
+{|style="width:80%; height:100px" border="1"
+|style="height:100px"; style="width:25%" border="1" bgcolor="LightSteelBlue" |'''Cardiovascular'''
+|style="height:100px"; style="width:75%" border="1" bgcolor="Beige" | No underlying causes
+|-
+|bgcolor="LightSteelBlue"| '''Chemical/Poisoning'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Dental'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Dermatologic'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Drug Side Effect'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Ear Nose Throat'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Endocrine'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Environmental'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Gastroenterologic'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Genetic'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Hematologic'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Iatrogenic'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Infectious Disease'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Musculoskeletal/Orthopedic'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Neurologic'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Nutritional/Metabolic'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Obstetric/Gynecologic'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Oncologic'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Ophthalmologic'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Overdose/Toxicity'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Psychiatric'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Pulmonary'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Renal/Electrolyte'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Rheumatology/Immunology/Allergy'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Sexual'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Trauma'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Urologic'''
+|bgcolor="Beige"| No underlying causes
+|-
+|-bgcolor="LightSteelBlue"
+| '''Miscellaneous'''
+|bgcolor="Beige"| No underlying causes
+|-
+|}
+===Causes in Alphabetical Order===
-* [[Streptococcus pneumoniae]], is also a gram-positive bacterium responsible for orbital cellulitis due to its ability to infect the sinuses ([[sinusitis]]).  Strep organisms are able to determine their own virulence and can invade surrounding tissues causing an inflammatory response seen in orbital cellulitis (similar to Staphyloccoccus aureus). Streptococcal infections are identified on culture by their formation of pairs or chains. Streptococcus pneumoniae produce green (alpha) hemolysis, or partial reduction of red blood cell hemoglobin.
 ==References==
 {{Reflist|2}}