Pathnologic @pathnologic
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Herpes Simplex Virus 
Lymphadenitis 
 • Expanded paracortex 
 • HSV-infected cells are 
present in areas
are present in ... 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
Amiodarone induced thyroid changes

Histopath: Remarkably enlarged follicles, distended with colloid, without 
scalloping, and lined by flattened
Amiodarone induced thyroid ... lipofuscin) AIT ... develops in 3% ... #Amiodarone #thyroid ... Pathology #Clinical #Microscopy
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
Sarcoid in the Thyroid - Pathology

Not all thyroid granulomas are subacute thyroiditis- this is sarcoidosis! Can
Sarcoid in the Thyroid ... Pathology Not all thyroid ... granulomas have an ... Sarcoid #Granuloma #Thyroid ... #Pathology #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
Diffuse Sclerosis Variant—PTC 
 - Rare variant of PTC 
 - Approximately 3% ofall PTC
PTC - Common in ... cells arranged in ... is reported in ... PTC #Papillary #Thyroid ... Clinical #Gross #Microscopy