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
Here is a lymph node that is lymphoid-depleted, fibrotic, and burned-out, typical of late phase HIV
KyleBradleyMD "Pattern ... C" in HIV Lymphadenitis ... proliferation (seen in ... #Pathology #Microscopy ... #LymphNode #Clinical
Urinary Casts in the setting of renal disease
#Clinical #Nephro #Urine #Microscopy #Casts #Comparison #Chart #ATN #AIN
Urinary Casts in ... renal disease #Clinical ... Nephro #Urine #Microscopy ... #Casts #Comparison ... #Chart #ATN #AIN
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
A", seen in early ... KyleBradleyMD "Pattern ... A" in HIV Lymphadenitis ... #Pathology #Microscopy ... #LymphNode #Clinical
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 ... #Clinical #Diagnosis
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
Tinea Versicolor - Physical examination revealed large, coalescing, hypopigmented patches and macules on her torso and
presence of yeast in ... and meatball” pattern ... in the superficial ... #Clinical #Derm ... TineaVersicolor #Rash #Microscopy
Hepatosplenic T-cell lymphoma involving hepatic sinusoids.

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