Pathnologic @pathnologic
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Herpes Simplex Virus 
Lymphadenitis 
 • Expanded paracortex 
 • HSV-infected cells are 
present in areas
Herpes Simplex Virus ... are present in ... DennisOMalleyMD) #Herpes #Simplex ... HSV #Pathology #Microscopy ... #Clinical #LymphNode
Urinary Casts in the setting of renal disease
#Clinical #Nephro #Urine #Microscopy #Casts #Comparison #Chart #ATN #AIN
Urinary Casts in ... Nephro #Urine #Microscopy ... #Casts #Comparison ... #Chart #ATN #AIN
Comparison of basophils and mast cells (in bone marrow).

#Basophils #MastCells #Pathology #Marrow #Smear #Microscopy #Comparison #Table
Comparison of basophils ... and mast cells (in ... Marrow #Smear #Microscopy ... #Comparison #Table
Here is a lymph node that is lymphoid-depleted, fibrotic, and burned-out, typical of late phase HIV
"Pattern C" in ... proliferation (seen in ... PatternC #Pathology #Microscopy ... #LymphNode #Clinical
Paracoccidioides brasiliensis Lymphadenitis: 

Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
infection rare in ... US, but endemic in ... Lymphadenitis #Pathology #LymphNode ... #Clinical #Microscopy
Muddy Brown Casts in ATN
#Clinical #Path #Nephro #Urine #Microscopy #MuddyBrownCasts #ATN
Muddy Brown Casts ... in ATN #Clinical ... Nephro #Urine #Microscopy ... MuddyBrownCasts #ATN
Signet ring cell histiocytes in lymph node sinuses! This can mimic metastatic adenocarcinoma. Histiocytes have ingested
cell histiocytes in ... Sometimes seen in ... #Histiocytes #LymphNode ... Pathology #Clinical #Microscopy
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
pattern A", seen in ... "Pattern A" in ... PatternA #Pathology #Microscopy ... #LymphNode #Clinical
Hepatosplenic T-cell lymphoma involving hepatic sinusoids.

HSTL also involves BM sinusoids and splenic red pulp cords and
cords and sinuses in ... essentially all cases ... 7q is present in ... most cases. ... HSTCL #Pathology #Microscopy