Dermatology study group Exam Questions & Answers 100% Correct!!

A 36-year-old woman presents to her primary care physician due to intense pruritic lesions affecting her ankles and wrists. She reports that this has never happened before. Medical history is significant for prior hospitalization for sepsis secondary to methicillin-resistant staphylococcus aureus (MRSA) in the setting of intravenous drug use. Her only medication is methadone and she does not have any allergies. On physical examination, there are polygonal violaceous papules affecting the ankles and volar surfaces of the wrists. Upon closer inspection of the lesions there are Wickham's striae. What is the most likely diagnosis? and what can be done to diagnosis? - ANSWERLichen planus Skin biopsy may be needed to confirm clinical findings A 49-year-old woman with chronic hepatitis C infection develops a very itchy rash on her forearms, calves, and buccal mucosa. On exam, multiple polygonal, purple papules are found on the skin. The buccal mucosa shows a lacy, reticulated pattern. She has taken antihistamines with some relief of pruritis. What is the most likely diagnosis? and what can be done to diagnosis? - ANSWERLichen planus Skin biopsy may be needed to confirm clinical findings A 42-year-old man presents with itchy and rough rash along his elbows, knees, and scalp. While he was previously treated for this disease in childhood, he has been off treatment for years. Physical exam reveals 2-7 cm pink plaques with overlying silvery scales. When the scale is scratched off, there is pinpoint bleeding. He is started on an intensive topical therapy regimen with corticosteroids and vitamin D analog What is the most likely diagnosis? and what can be done to diagnosis? - ANSWERpsoriasis; there is no confirmatory test for psoriasis the diagnosis is made clinically A 44-year-old man presents to his family physician with complaints of dry and scaly lesions on his bilateral elbows. He reports that these lesions developed in his 20's and have been growing in size since that time. He also reports similar lesions on the anterior portion of his knees. The lesions itch and they bleed when he scratches them. He denies any additional past medical history. Additional findings include pitting of the fingernails. Which of the following medications may worsen or exacerbate this patient's condition? A. Losartan B. Oxycodone C