Department of Pathology, University of Oklahoma Health Sciences Center
A 55 year-old woman with granulomatous dermititis and cerebral masses
Clinical information: The patient was a 55-yo woman with a history of myasthenia gravis and was treated with steroids. She recently had a skin biopsy which showed a granulomatous dermatitis with acid fast organisms, cultured out as M. kansasii. She presented later with mild confusion and 2 separate enhancing cerebral masses. MRI revealed multiple lesions in the brain. A left thalamic biopsy was performed to rule out infection.
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Panel D is immunohistochemistry for CD20.
How would you work this case up? What is your diagnosis? DiscussionCases of the Month Evaluation Coordinator: KarMing-Fung@ouhsc.edu