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Blastomycosis

Summary of Blastomycosis
Blastomycosis is a fungal infection caused by Blastomyces dermatitidis. It causes symptoms suggestive of bacterial pneumonia that may spread to involve skin and bone. It may also result in a granulomatous response. The disease occurs east of the Mississippi River in the United States and also in Central America. Its histological appearance is characterized by broad-based budding and thick walls that are doubly refractive.

Assessments
Blastomycosis

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High Yield Notes
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Blastomycosis

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USMLE® Step 1 style questions USMLE

1 questions

USMLE® Step 2 style questions USMLE

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Preview

A 36-year-old Caucasian woman comes to the office complaining of a productive cough, chest pain, and high-grade fever. Her medical history is noncontributory. The patient currently works as park keeper for White Mountain National Forest in New Hampshire. Upon medical interrogation, the patient claims that lately she feels diffuse joint pain in her shoulders and knees. She currently takes ibuprofen and reports no improvement of symptoms. Physical examination is notable for multiple granulomatous nodules in her chest. Her temperature is 38.5°C (101.3°F), pulse is 101/min, respirations are 17/min, blood pressure is 120/60 mmHg. A sputum culture is obtained and shows dividing yeast organisms and large broad-based budding from mother cells. Which of the following is the most likely causal organism for this patient's findings?