QuestionSBA
QuestionChoice
Guttate psoriasis is the second most common presentation of psoriasis in children (after chronic plaque psoriasis). It classically occurs 2-4 weeks after a streptococcal infection and manifests as multiple small papules which are pink, scaly, and teardrop shape in appearance. Guttate psoriasis is often the first presentation of psoriasis.
10000411
a
Guttate psoriasis
QuestionChoice
Tinea corporis (also known as ringworm) is an unlikely diagnosis here. Tinea corporis is a fungal skin infection caused by *Trichophyton* species and presents with a well-defined ring-shaped lesion which may have pustules or papules. Guttate psoriasis on the other hand presents with multiple, small, tear-drop-shaped scales and characteristically is preceded by streptococcal infection.
10000415
e
Tinea corporis
QuestionChoice
An important differential, pityriasis rosea is a common skin condition characterised by oval-shaped scaly patches that commonly occur after an upper respiratory tract infection. One of the most important differentiating factors between pityriasis rosea and guttate psoriasis is the presence of a herald patch in pityriasis rosea. A herald patch is a single patch that appears in pityriasis rosea a few days before the onset of more widespread skin involvement.
10000412
b
Pityriasis rosea
QuestionChoice
Generalized pustular psoriasis (GPP) is a life-threatening dermatological condition. It is a rare form of psoriasis characterized by acute-onset, widespread erythema and the subsequent appearance of non-follicular pustules. GPP also often presents with systemic features such as fever, fatigue, nausea, and tachycardia. Guttate psoriasis, on the other hand, is typically a self-resolving condition that often disappears after several weeks without intervention. Furthermore, GPP does not present with tear-drop lesions, but rather a widespread erythema. It is therefore not the most likely diagnosis.
10000414
d
Generalized pustular psoriasis
QuestionChoice
Although chronic plaque psoriasis is the most common presentation of psoriasis, it is not the diagnosis here. Chronic plaque psoriasis classically presents with well-demarcated, scaly, erythematous plaques that most commonly manifest over extensor surfaces, the trunk, the scalp, and the buttocks. The tear-drop morphology of the lesions and the history of streptococcal infection suggest guttate psoriasis over chronic plaque psoriasis in this case.
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c
Chronic plaque psoriasis
Concept
Chapter
2693
3759
Guttate psoriasis
Topic
144
Dermatology
12629
Picture
1501
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ajgODYI4d3iAdoiDd2h3d2qdkPQY
Topic
144
Dermatology
A 13-year-old boy presents to General Practise with his mother, who reports a 2-day history of spots across the back and chest. She also reports that he suffered from a sore throat 2 weeks ago which was treated with antibiotics. On examination, you note multiple small lesions across the boy's torso. They are teardrop-shaped, pink, and scaly in appearance.

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Which of the following is the most likely diagnosis?
a