Pathnologic @pathnologic
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Herpes Simplex Virus 
Lymphadenitis 
 • Expanded paracortex 
 • HSV-infected cells are 
present in areas
Simplex Virus Lymphadenitis ... Simplex #Virus #Lymphadenitis ... HSV #Pathology #Microscopy
Here is a lymph node that is lymphoid-depleted, fibrotic, and burned-out, typical of late phase HIV
late phase HIV lymphadenitis ... Pattern C" in HIV Lymphadenitis ... pattern C #HIV #Lymphadenitis ... PatternC #Pathology #Microscopy
A normal peripheral blood smear indicates the appropriate appearance of red blood cells, with a zone
Clinical #Path #Microscopy ... PeripheralBloodSmear #BloodSmear
Here is another peripheral blood smear demonstrating changes with iron deficiency anemia. Note the increased zone
Clinical #Path #Microscopy ... PeripheralBloodSmear #BloodSmear
Here are very large, immature myeloblasts with many nucleoli. A distincitve feature of these blasts is
Clinical #Path #BloodSmear ... #Blood #Smear #Microscopy
Paracoccidioides brasiliensis Lymphadenitis: 

Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
Paracoccidioides brasiliensis Lymphadenitis ... #brasiliensis #Lymphadenitis ... LymphNode #Clinical #Microscopy
Post-splenectomy blood smear demonstrating Howell-Jolly bodies and target cells.

#Clinical #Pathology #BloodSmear #HowellJollyBodies #TargetCells #Splenectomy #Asplenic
Clinical #Pathology #BloodSmear
A – cabot ring, B – Howell-Jolly Body

What are Cabot’s rings?
- They are delicate threadlike inclusions
Clinical #Pathology #Microscopy ... #BloodSmear #CabotRings
Peripheral Blood shows a subset of atypical lymphocytes with hairy-like cytoplasmic projection.
#Clinical #Path #BloodSmear #Blood #Smear
Clinical #Path #BloodSmear
The arrows point to blister cells. These cells are thought to be precursors of helmet cells.
Clinical #Path #BloodSmear