Pathnologic @pathnologic
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Path Geek - All things #pathology
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Here are very large, immature myeloblasts with many nucleoli. A distincitve feature of these blasts is
a linear red "Auer ... #Clinical #Path ... Smear #Microscopy #Auer
A 37-year-old woman initially presented with pancytopenia and found to have leukopenia (2.1 × 103/μL) with
with occasional Auer ... consistent with Auer ... addition to APL, Auer ... #Clinical #Path ... Smear #Microscopy #Auer
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Red Blood Cell Morphology Atlas

Size variation, Hemoglobin distribution,  
Hypochromia,  
Shape variation,  
Inclusions, 
Red
Red Blood Cell Morphology ... Inclusions, Red cell ... #Diagnosis #Path
Schistocytes can assume a shape resembling natural or man-made objects such as arrowheads, fish, collar buttons,
point to helmet cells ... are a teardrop cell ... , 2 blister cells ... ), and 2 burr cells ... #Clinical #Path
Red cell autoagglutination is the process whereby red cells clump together forming aggregates. This is seen
Red cell autoagglutination ... process whereby red cells ... individual’s red blood cells ... #Clinical #Path
Red cell autoagglutination is the process whereby red cells clump together forming aggregates. This is seen
Red cell autoagglutination ... process whereby red cells ... individual’s red blood cells ... #Clinical #Path
Sickle cells
These photos show sickle cells on peripheral blood smears. In the left photo target cells
Sickle cells These ... photos show sickle cells ... airmen with sickle cell ... developing sickle cell ... #Clinical #Path
Herpes Simplex Virus 
Lymphadenitis 
 • Expanded paracortex 
 • HSV-infected cells are 
present in areas
• HSV-infected cells ... 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
Paracoccidioides brasiliensis Lymphadenitis: 

Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
fibrosis (A) and well-formed ... seen within giant cells ... Lymphadenitis #Pathology #LymphNode