Causes of Impetigo
List of causes of Impetigo
Following is a list of causes or underlying conditions
(see also Misdiagnosis of underlying causes of Impetigo)
that could possibly cause Impetigo includes:
Causes of Impetigo (Diseases Database):
The follow list shows some of the possible medical causes of Impetigo
that are listed by the Diseases Database:
Source: Diseases Database
Impetigo Causes: Book Excerpts
Impetigo as a complication of other conditions:
Other conditions that might have
Impetigo as a complication may,
potentially, be an underlying cause of Impetigo.
Our database lists the following as having
Impetigo as a complication of that condition:
Impetigo as a symptom:
Conditions listing Impetigo
as a symptom may also be potential underlying causes of Impetigo.
Our database lists the following as having
Impetigo as a symptom of that condition:
What causes Impetigo?
Causes: Impetigo:
Bacterial skin infection by streptococcus or Staphylococcus aureus.
Related information on causes of Impetigo:
As with all medical conditions,
there may be many causal factors.
Further relevant information on causes of Impetigo may be found in:
Causes of Impetigo: Online Medical Books
16 MEDICAL BOOKS ONLINE!
Review excerpts from medical books online, free, without registration,
for more information about the causes of Impetigo.
Impetigo:
Causes and incidence
(Professional Guide to Diseases (Eighth Edition))
Coagulase-positive Staphylococcus aureus and, less commonly, group A beta-hemolytic streptococci usually produce nonbullous impetigo; S. aureus (especially phage type 71) generally causes bullous impetigo.
In the United States, impetigo occurs most often in southern states. It often causes deeper dermal inflammation in blacks than in whites and may result in postinflammatory hypopigmentation or hyperpigmentation.
» READ BOOK EXCERPT ONLINE »
Source: Professional Guide to Diseases (Eighth Edition), 2005
Impetigo:
Causes
(Handbook of Diseases)
Coagulase-positive Staphylococcus aureus and group A beta-hemolytic streptococci (or a combination of both) produce epidermal infections.
» READ BOOK EXCERPT ONLINE »
Source: Handbook of Diseases, 2003
School Underachievement and Academic Failure:
Principal Causes of School Underachievement and AcademicFailure
(The Diagnostic Approach to Symptoms and Signs in Pediatrics)
- Environmentaldisadvantage
- Impaired intellectual ability
- Impaired hearing, language, or vision
- Specific learning disabilities
- Medical illness in the absence of psychosis
- Psychologic disorders
- Anxiety
- Depression
- Attention deficit hyperactivity disorder
- School phobia
- Adjustment reaction of childhood andadolescence
- Disruptive behavior disorders
- Bipolar disorder
- Pervasive developmental disorders
- Autism
- Childhood disintegrative disorder
- Asperger disorder
- Rett syndrome
- Pervasive developmental disorder nototherwise specified
- Psychosis
- Substance use
» READ BOOK EXCERPT ONLINE »
Source: The Diagnostic Approach to Symptoms and Signs in Pediatrics, 2006
Impetigo:
Impetigo - pathophysiology
(The 5-Minute Pediatric Consult)
- Bacteria invade areas of the skin that are not intact.
- In early lesions, histology shows vesicopustular formation in the subcorneal region of the epidermis, and neutrophils can be found. The blister cavity is larger in bullous impetigo than in nonbullous impetigo.
- A serous crust and neutrophilic debris overlying a superficially eroded epidermis may be seen in later stages on histopathologic evaluation.
Impetigo - etiology
Nonbullous impetigo: Group A-hemolytic streptococci, Staphylococcus aureus, or both are the causative agents. Previously, group A streptococcus was the most common bacterium associated with nonbullous impetigo, but now S. aureus is the most common.
- Bullous impetigo: S. aureus is almost always the causative agent. The formation of bullae is mediated by production of exfoliative toxins. The exfoliative toxins excreted by associated strains of S. aureus produce a cleavage plane under the stratum corneum allowing the bacteria to proliferate and spread.
» READ BOOK EXCERPT ONLINE »
Source: The 5-Minute Pediatric Consult, 2008
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» Next page: Risk Factors for Impetigo
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