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Image Number 2638 (Psoriasis)

 
Morphology:
Plaque

Diagnosis: Psoriasis

Site: Leg

Sex: M

Age: 48

Type:

Description: Indurated, scaly plaques

Submitted by: Ted Rosen

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Differential Diagnosis

History:

48 year-old who gradually developed an itchy rash on both legs, both arms and, to a lesser extent, on the back. The thick and scaly plaques suggested both psoriasis and lichen planus as possible diagnoses, and a biopsy was performed to verify the correct diagnosis. The patient did not respond well to conservative treatment (topical + phototherapy), but ultimately cleared nearly completely with etanercept.



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