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Pityriasis Rosea on Chest, Neck, and Back of a 35-Year-Old Man
Disturbed by a pruritic rash of 5 days' duration on his chest, neck, and back, a 35-year-old man sought medical advice. The patient had no other symptoms.
Disturbed by a pruritic rash of 5 days' duration on his chest, neck, and back, a 35-year-old man sought medical advice. The patient had no other symptoms.
Dr Sunita Puri of Decatur, Ala, diagnosed pityriasis rosea.
This mild, benign, self-limited disorder of unknown cause primarily affects young adults. The eruption occurs on the trunk.
Erythematous, oval lesions with slightly raised borders, or collarettes, vary in size from 0.5 to 2 cm. The long axis of the lesions follows skin cleavage lines, forming a “Christmas tree” pattern. Typically, a large, solitary mother, or herald, patch erupts on the trunk 5 to 10 days before the outbreak of crops of smaller lesions.
Generally, the rash resolves in 2 to 3 weeks. (In this patient, it resolved completely within 10 days.)
Antihistamines and prednisone may be used to treat the pruritus. Sunlight and ultraviolet light hasten involution of the lesions.
Lebrikizumab Demonstrates Efficacy, Safety in Patients With Skin of Color With AD
June 11th 2025RAD 2025. Lebrikizumab improved skin clearance, itch, and pigmentation in patients with skin of color and atopic dermatitis, with strong safety data through 24 weeks, according to late-breaking data.
