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In this section we have Logan's cases since June 2010, now over 4000! You can review the archived cases and read the suggested diagnoses by users and the final comment by the contributors.

Histoplasmosis

Operations Pathhub

By Operations Pathhub

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Case 45   Aug 2010 (P. McKee) 

Note intracytoplasmic organisms within the giant cells.  Many thought Leishmaniasis.  Histoplasma organisms are larger and surrounded by a pseudocapsule, highlighted by silver stain (GMS). 

DD: see 710  6.3.13 for discussion 

 

Case 4443 31.1.24 (M. Batrani) M 51 multiple papules and nodules head and upper trunk 

Lymphohistiocytic heavy, upper and mid-dermal infiltrate. Intracytoplasmic basophilic organisms visible in histiocytes.  No GMS shown. 

DD: Leishmaniasis; cryptococcosis; leprosy; syphilis. 

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