Miliaria: Difference between revisions

Latest revision as of 21:34, 17 August 2022

Background

Also known as heat rash, lichen tropicus, miliaria rubra, prickly heat

Pathophysiology

Acute inflammation of sweat ducts caused by blockage of pores by macerated skin
Ducts become dilated under pressure and ultimately rupture
Often seen in areas of friction
This produces superficial vesicles in malpighian layer of skin on a red base
May progress to miliaria profunda (white papules) if duct ruptures a second time

Clinical Features

Miliaria

Pruritic, maculopapular, erythematous rash over normally clothed areas of body

Differential Diagnosis

Environmental heat diagnoses

Maculopapular rashes

Infectious
- Adenovirus
- Arbovirus
- Chikungunya
- EBV
- Ehrlichiosis
- Enterovirus
- Fifths disease
- HSV 6
- Leptospirosis
- Lyme
- Measles
- Meningococcemia
- Mycoplasma
- Parvovirus (B19)
- Primary HIV
- Psittacosis
- Rickettsia
- Rubella
- Rubeola
- Scabies
- Secondary syphilis
- Streptobacillus moniliformis
- Typhoid fever/typhus

Noninfectious
- Acrodermatitis enteropathica
- Allergy
- Dermatomyositis
- Erythema marginatum
- Erythema multiforme
- Lupus
- Miliaria (Heat Rash))
- Serum sickness
- Sweet's syndrome

Evaluation

Clinical diagnosis

Management

Antihistamines
Dicloxacillin or erythromycin, if appears superinfected

Disposition

Outpatient

References

Authors:

@@ Line 1: / Line 1: @@
 ==Background==
-#Pruritic, maculopapular, erythematous rash over normally clothed areas of body
+*Also known as ''heat rash, lichen tropicus, miliaria rubra, prickly heat''
-[[Image:Miliaria.jpg|thumbnail|Miliaria]]
 ===Pathophysiology===
-#Acute inflammation of sweat ducts caused by blockage of pores by macerated skin
+*Acute inflammation of sweat ducts caused by blockage of pores by macerated skin
-##Ducts become dilated under pressure and ultimately rupture
+*Ducts become dilated under pressure and ultimately rupture
-###This produces superficial vesicles in malpighian layer of skin on a red base
+*Often seen in areas of friction
-####May progress to miliaria profunda (white papules) if duct ruptures a second time
+*This produces superficial vesicles in malpighian layer of skin on a red base
+*May progress to miliaria profunda (white papules) if duct ruptures a second time
+==Clinical Features==
+[[Image:Miliaria.jpg|thumbnail|Miliaria]]
+*[[pruritus|Pruritic]], maculopapular, erythematous [[rash]] over normally clothed areas of body
 ==Differential Diagnosis==
-{{Template:Heat Emergencies}}
+{{Heat Emergencies}}
+{{Maculopapular rash DDX}}
+==Evaluation==
+*Clinical diagnosis
-==Treatment==
+==Management==
-#Antihistamines
+#[[Antihistamines]]
-#Dicloxacillin or erythromycin if appears superinfected
+#[[Dicloxacillin]] or [[erythromycin]], if appears superinfected
+==Disposition==
+*Outpatient
 ==See Also==
 *[[Heat Emergencies]]
-==Source==
+==References==
-Tintinalli
+<references/>
+[[Category:Environmental]]
-[[Category:Environ]]