A 16-year-old boy from a remote region in Australia is presented to the hospital with a painless lesion in the left side of the neck, the lesion first appeared about 2 months ago was small but turned into a bigger yellowish-white papule as the days passed. The boy did not have any underlying disease condition and did not have any clinical symptoms during the examination. A tissue sample was taken and sent to the laboratory, gram staining and acid-fast staining showed gram positive rods, after 4 weeks of incubation transparent colonies appeared on the culture media. Name the possible pathogen?

A 16-year-old boy from a remote region in Australia is presented to th

1.	A 16-year-old boy from a remote region in Australia is presented to the hospital with a painless lesion in the left side of the neck, the lesion first appeared about 2 months ago was small but turned into a bigger yellowish-white papule as the days passed. The boy did not have any underlying disease condition and did not have any clinical symptoms during the examination. A tissue sample was taken and sent to the laboratory, gram staining and acid-fast staining showed gram positive rods, after 4 weeks of incubation transparent colonies appeared on the culture media. Name the possible pathogen?
A.	M. ulcerans
B.	M. bovis
C.	M. avium
D.	M. leprae
Answer» B. M. bovis