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Pityriasis rosea

The following articles have the tag Pityriasis rosea

Pityriasis variant

Pityriasis variant

A YOUNG man presents with a red scaly rash in his groin. The large lesion came first and the others shortly afterwards. This is often diagnosed as tinea of the groin but he may have the same rash in his other groin and in his axillae. This is the inverse variant of pityriasis rosea . Usually, pityriasis rosea occurs on the trunk with the herald patch being followed shortly afterwards by the oval-shaped red scaly lesions in the lines of the ribs. In this variant, the condition is confined to the flexures and may take longer (8-12 ...

A scaly and pink rash

A teenager is embarrassed by an itchy rash. CASE PRESENTATION A 15-YEAR-OLD male presented with a moderately itchy rash on the trunk of three weeks’ duration. He experienced transient malaise, fever and headache several days before the rash appeared. On further questioning, an initial solitary scaly patch on the shoulder had appeared several days before the current rash. What is the likely diagnosis? Figure 1. An itchy rash on the trunk and proximal limbs (secondary eruption of PR). Figure 2. Individual patches and plaques with ...

Sun, surf and spots

A 21-year-old man presents with an asymptomatic pale ‘spotty’ rash on his trunk that has spread over summer. He is concerned about the unsightly appearance, especially when he is bare-chested at the surf club. He is also concerned that it may be infectious. What is your diagnosis and management? Figures A and B: Pityriasis versicolor presents as finely scaling discoloured patches on the trunk. DIAGNOSIS Pityriasis versicolor (PV), or tinea versicolor, is a common condition affecting adolescents and young adults. PV presents as finely scaling discoloured ...

Guttate psoriasis

A young woman with a history of psoriasis presents with itchy papules on her limbs and back. CASE HISTORY A 24-YEAR-OLD Caucasian female presented to hospital with right-sided tonsillitis and quinsy, on a background history of longstanding psoriasis. Following admission, the quinsy was subsequently drained and she was improving. However, while in hospital, she had noticed small papules appearing bilaterally on her upper and lower limbs, and also her back. These were associated with a slight itch. On examination, she had multiple teardrop-sized red papules covered with scale on ...

Pruritic purplish papules

Dr Adrian Lim offers diagnostic tips for an itchy rash. A 54-year-old woman presents with a six-week history of an extremely itchy rash, which started on the wrist/forearms, ankles and gradually involved the lower torso. She has no oral mucosal, scalp, genital or nail changes. A 54-year-old woman presents with an itchy rash on the wrist that spread to the torso. PROVISIONAL DIAGNOSIS Classical lichen planus: This consists of raised, shiny, flat-topped violaceous (purplish) papules that are occasionally polygonal in shape. Whitish ...

Patches herald pityriasis rosea

Important differentials must be considered in the diagnosis of a young man’s rash. PATIENT PRESENTATION A 33-year-old male flight attendant presented with a rash on his chest and back that had started three days before. About two weeks before this, he’d had “the flu” and had noticed a pink patch on his chest, but ignored it. He was otherwise well with no significant past history, no regular medications and no allergies. He had been taking aspirin and paracetamol off and on for his flu-like symptoms. He was single, homosexual and ...

Patches herald pityriasis rosea

Important differentials must be considered in the diagnosis of a young man’s rash. PATIENT PRESENTATION A 33-year-old male flight attendant presented with a rash on his chest and back that had started three days before. About two weeks before this, he’d had “the flu” and had noticed a pink patch on his chest, but ignored it. He was otherwise well with no significant past history, no regular medications and no allergies. He had been taking aspirin and paracetamol off and on for his flu-like symptoms. He was single, homosexual and ...