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July 16, 1932


JAMA. 1932;99(3):237-238. doi:10.1001/jama.1932.02740550051023

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A New Species of Blastomyces  Before the Sociedade de Medicina of Pernambuco, Dr. J. Lobo recently delivered an address on blastomycosis in which he reported on a patient of Recife, aged 48, who presented a dermatosis of nineteen years' duration. The lesions consisted of a large number of either isolated or confluent nodules, ranging in diameter from a pin's head to about 15 mm., at the sacral region. The nodules, which were resistant to pressure, hard on palpation and of a chestnut color, had a white point at the top. Neither ganglionic nor perinodular inflammatory reactions were observed. The nodules oozed a thick pus, which microscopically showed a large number of round micro-organisms, regular in size and covered by a double membrane. The organisms wandered among the leukocytes. They were smaller than Coccidioides immitis, had granulations inside their bodies, and showed brownian movement. A part of the lesion was removed

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