Week 6: Rashes in Infectious Disease Flashcards
Learning Objectives
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/724/899/a_image_thumb.jpg?1573949729)
What is a macule?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/724/980/a_image_thumb.png?1573950029)
What is a papule?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/178/a_image_thumb.png?1573950053)
Macule vs Papule
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/190/a_image_thumb.jpg?1573950076)
What is a nodule?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/195/a_image_thumb.png?1573950093)
What is a Plaque?
Nodule vs plaque
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/286/a_image_thumb.jpg?1573950268)
What is a pustule?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/343/a_image_thumb.png?1573950334)
What is a vesicle/Bulla?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/374/a_image_thumb.png?1573950401)
Pustule vs vesicle/Bulla
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/423/a_image_thumb.jpg?1573950423)
What are hives?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/425/a_image_thumb.png?1573950444)
What is angioedema?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/449/a_image_thumb.png?1573950467)
Hives vs angioedema
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/462/a_image_thumb.jpg?1573950483)
What are scales?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/465/a_image_thumb.png?1573950499)
What is crust?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/544/a_image_thumb.png?1573950533)
Scales vs crust
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/601/a_image_thumb.jpg?1573950552)
What is an erosion?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/613/a_image_thumb.png?1573950567)
What is an ulcer?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/617/a_image_thumb.png?1573950598)
What is a fissure?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/708/a_image_thumb.png?1573950614)
Erosion vs ulcer vs fissure
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/713/a_image_thumb.jpg?1573950637)
What is a cyst?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/725/a_image_thumb.png?1573950653)
What is a burrow
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/752/a_image_thumb.png?1573950669)
Cyst vs burrow
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/758/a_image_thumb.jpg?1573950695)
What is petechiae?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/769/a_image_thumb.png?1573950716)
What is purpura?
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/791/a_image_thumb.png?1573950735)
Petechiae vs purpura
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/793/a_image_thumb.jpg?1573950750)
Question
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/796/q_image_thumb.jpg?1573950779)
Measles clinical presentation
- Fever
- The 3 C’s:
- Cough
- Coryza
- Conjunctivitis
- Koplik spots 1-2 days prior to rash
- The rash starts on the face and spreads down
- Rash is NOT pruritic
Complications of Measels
Rare complications are
- Secon dary bacterial infection
- Encephalitis
- Subacute sclerosing panencephalitis
Measels overview
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/725/972/a_image_thumb.jpg?1573950978)
Rubella AKA
German Measles
Rubella clinical manifestations
- Nonspecific
- Low grade fever
- 50% asymptomatic
- The rash starts on the face and moves down to the trunk
- It IS pink, NOT red like Measels
Rubella complications
- Congenital Rubella (highest risk first 4 months of pregnancy)
- hearing-loss
- mental retardation
- Cardiovascular defects
- ocular defects
Rubella overview
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/726/022/a_image_thumb.jpg?1573951150)
Reseola AKA
HHV-6 or HHV-7
Roseola Clinical Manifestations
- Upper respiratory symptoms
- High fever for 5-7 days
- 90% case in children <2 y/o
- The rash starts when fever breaks
- spreads from neck/trunk to face and extremities
Roseola complications
- Occasionally high fever will trigger febrile seizures
Roseola overview
![](https://s3.amazonaws.com/brainscape-prod/system/cm/293/726/464/a_image_thumb.jpg?1573951810)