Pathnologic @pathnologic
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Path Geek - All things #pathology
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Here is a lymph node that is lymphoid-depleted, fibrotic, and burned-out, typical of late phase HIV
KyleBradleyMD "Pattern ... infection) - "Pattern ... phase between pattern ... Pathology #Microscopy #LymphNode ... #Clinical
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
lymphadenitis (so-called "pattern ... KyleBradleyMD "Pattern ... Lymphadenitis #PatternA ... Pathology #Microscopy #LymphNode ... #Clinical
Schistocytes can assume a shape resembling natural or man-made objects such as arrowheads, fish, collar buttons,
the left photo are ... a teardrop cell ... , 2 blister cells ... the right photo are ... #Clinical #Path
Herpes Simplex Virus 
Lymphadenitis 
 • Expanded paracortex 
 • HSV-infected cells are 
present in areas
• HSV-infected cells ... are present in ... Pathology #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
Sickle cells
These photos show sickle cells on peripheral blood smears. In the left photo target cells
Sickle cells These ... are also seen, ... clinically and ... sickle unless they are ... #Clinical #Path
Tinea Versicolor - Physical examination revealed large, coalescing, hypopigmented patches and macules on her torso and
torso and upper arms ... and meatball” pattern ... #Clinical #Derm
Nucleated red blood cells, aka normoblasts or erythroblasts, were released prematurely from the bone marrow in
Nucleated red blood cells ... other nucleated cells ... are orthochromic ... causes of hypoxia are ... #Clinical #Path
Paracoccidioides brasiliensis Lymphadenitis: 

Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
Nodes, and lungs are ... fibrosis (A) and well-formed ... seen within giant cells ... Lymphadenitis #Pathology #LymphNode ... #Clinical #Microscopy
Schistocytes - The arrows point to schistocytes which are fragmented red blood cells. Also called schizocytes,
schizocytes, these cells ... shapes of red cells ... a more generic term ... Clinical conditions ... #Clinical #Path