American Society of Microbiology ABMM ABMM Question # 54 Topic 1 Discussion

American Society of Microbiology ABMM ABMM Question # 54 Topic 1 Discussion

ABMM Exam Topic 1 Question 54 Discussion:
Question #: 54
Topic #: 1

A patient presents with a chronic, non-healing skin ulcer in a tropical region. Microscopic examination of a biopsy reveals amastigotes within macrophages. Culture of the biopsy on Novy-MacNeal-Nicolle (NNN) medium yields flagellated promastigotes. The MOST likely diagnosis is cutaneous leishmaniasis caused by:


A.

Leishmania donovani


B.

Leishmania tropica or Leishmania major


C.

Trypanosoma cruzi


D.

Trypanosoma brucei gambiense


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