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Elderly Woman With Odd Knees

Elderly Woman With Odd Knees


An 81-year-old woman with Alzheimer disease presents with agitation and a great deal of groaning. When not agitated, she is able to walk surprisingly well although she requires contact guarding. Her medical problems include a seizure disorder perhaps of recent onset, well-controlled on phenytoin. She also has undexplained eosinophilia of 15%.

An image of her knees is at left. They look normal when she is seated but unusual when she stands.


What's your guess at her diagnosis?
A. Paget disease
B. Rickets
C. Bilateral pseudoseptic arthritis
D. Congenital syphilis



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