This type of psoriasis is commonly seen in children and may follow a streptococcal sore throat –
**Question:** This type of psoriasis is commonly seen in children and may follow a streptococcal sore throat -
A. Psoriasis vulgaris
B. Psoriasis guttata
C. Psoriasis infancy
D. Psoriasis juvenilis
**Correct Answer:** D. Psoriasis juvenilis
**Core Concept:**
Psoriasis is a chronic inflammatory skin disorder characterized by excessive proliferation of keratinocytes and impaired differentiation. There are various types of psoriasis, but the one being tested here is Psoriasis juvenilis, also known as Psoriasis infantum or Psoriasis Vulgaris of childhood. This type of psoriasis is commonly seen in children and may follow a streptococcal sore throat.
**Why the Correct Answer is Right:**
Psoriasis juvenilis is a type of psoriasis that primarily affects children and adolescents. This condition is characterized by the rapid proliferation of keratinocytes, which leads to the formation of scaly, red plaques on the skin. The term "juvenilis" refers to the age group commonly affected by this condition.
**Why Each Wrong Option is Incorrect:**
A. Psoriasis vulgaris is the most common type of psoriasis, affecting adults mainly, not children.
B. Psoriasis guttata is characterized by small, red, and shiny plaques covered with silver-white scales, which is different from the scaly, red plaques seen in psoriasis juvenilis.
C. Psoriasis infancy is another term for psoriasis juvenilis, but it refers to the condition in infants, which is less common than in children.
**Clinical Pearl:**
Psoriasis juvenilis is often triggered by infections, particularly streptococcal infections, such as streptococcal pharyngitis (strep throat). This correlation between psoriasis and streptococcal infections highlights the importance of proper diagnosis and prompt treatment of these infections to prevent the onset or exacerbation of psoriasis in children.
In conclusion, Psoriasis juvenilis is the correct answer as it is the type of psoriasis commonly seen in children and can be triggered by infections, particularly streptococcal infections like streptococcal pharyngitis.