Case Study: A 53-year-old male farmer presents for evaluation of a growth on his arm…

A 53-year-old male farmer presents for evaluation of a growth on his arm. About a week ago, he noticed some mildly itchy red bumps on his arm. They started to blister a day or two later and then ruptured. During this time he had a low-grade fever, but otherwise felt well. Further questioning reveals that he has had no ill contacts and never had anything like this before. He has cows, horses, goats, sheep, and chickens on his farm. On examination of his right upper arm, you find a 4.5-cm circular black eschar surrounded by several vesicles (blisters) and edema. He has tender axillary lymph node enlargement (adenopathy). A Gram stain of fluid drained from a vesicle and a biopsy from the eschar both show chains of gram-positive bacilli on microscopy.

What organism is the likely cause of this disease?

Sagar Aryal Admin Asked on October 25, 2015 in Case Study.

Bacillus anthrax

on October 25, 2015.

B. anthrax

on October 25, 2015.

Bacillus anthracis caused by animals

on October 25, 2015.
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1 Answer(s)

Bacillus anthracis

Gaurab Karki Level 2 Answered on October 26, 2015.
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