Guttate Psoriasis

Question 1

Guttate Psoriasis Definition

Answer 1

• Small drop like salmon pink papule with a fine scale
• Usually occurs on trunk and proximal extremities
• Can be caused by GAS infection
• Can be unrelated

Question 2

Guttate Psoriasis Epidemiology

Answer 2

• In individuals younger than 30
• Genetic predisposition
• Mostly associated with a strep infection

Question 3

Guttate Psoriasis Presentation

Answer 3

• Multiple, discrete, drop-like, salmon-pink patches with fine scale
• Acute onset
• Antecedent streptococcal infection in most cases
• FHx of psoriasis
• Nail changes usually absent (more associated with chronic)
• Palms and soles rarely affected
• Mild itching
• Improves during summer worse during winter

Question 4

Guttate Psoriasis Differentials

Answer 4

• Nummular dermatitis
• Pityriasis rosea
• Lichen planus

Question 5

Guttate Psoriasis Investigations

Answer 5

• Diagnosis is clinical

- Dermoscopy may be useful

Question 6

Guttate Psoriasis Management

Answer 6

• Usually self-limiting within a few weeks without treatment, reassurance and emollients may be sufficient
• Phototherapy
• Topical treatment may be difficult due to extent of lesions

Question 7

Guttate Psoriasis Prognosis

Answer 7

• Can go on to develop chronic plaque

- Can be recurrent due to pharyngeal carriage of strep