Pathnologic @pathnologic
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Paracoccidioides brasiliensis Lymphadenitis: 

Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
Paracoccidioides ... brasiliensis Lymphadenitis ... seen within giant cells ... #brasiliensis #Lymphadenitis ... #Pathology #LymphNode
Schistocytes can assume a shape resembling natural or man-made objects such as arrowheads, fish, collar buttons,
arrows point to helmet ... cells. ... , 2 blister cells ... Clinical #Path #BloodSmear ... #Blood #Smear #Helmet
Herpes Simplex Virus 
Lymphadenitis 
 • Expanded paracortex 
 • HSV-infected cells are 
present in areas
Simplex Virus Lymphadenitis ... • HSV-infected cells ... Simplex #Virus #Lymphadenitis ... Microscopy #Clinical #LymphNode
The arrows point to blister cells. These cells are thought to be precursors of helmet cells.
point to blister cells ... These cells are ... precursors of helmet ... cells. ... Clinical #Path #BloodSmear
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
typical of HIV lymphadenitis ... Pattern A" in HIV Lymphadenitis ... Warthin-Finkeldey type giant cells ... Monocytoid B cells ... Pathology #Microscopy #LymphNode