Pathnologic @pathnologic
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Herpes Simplex Virus 
Lymphadenitis 
 • Expanded paracortex 
 • HSV-infected cells are 
present in areas
Herpes Simplex Virus ... paracortex • HSV-infected ... Lymphadenitis #HSV ... #Pathology #Microscopy ... #Clinical #LymphNode
Here is a lymph node that is lymphoid-depleted, fibrotic, and burned-out, typical of late phase HIV
of late phase HIV ... "Pattern C" in HIV ... pattern C #HIV ... Lymphadenitis #PatternC #Pathology ... #Microscopy #LymphNode
Squamous-Cell Carcinoma of the Tongue - Intraoral examination revealed a well-circumscribed superficial ulcer, with a homogeneous
Squamous-Cell Carcinoma ... red and white patch ... B) #Clinical #Pathology ... #SCC #Tongue #Squamous ... #Microscopy #NEJM
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
hyperplasia typical of HIV ... in early phase HIV ... "Pattern A" in HIV ... Lymphadenitis #PatternA #Pathology ... #Microscopy #LymphNode
Focal epithelial hyperplasia/Heck disease. Acanthotic squamous epithelium with widened, confluent rete ridges, mild koilocytic change, and
Acanthotic squamous ... Usually caused by HPV ... Heck #disease #Pathology ... #Microscopy #Clinical
Diffuse Sclerosis Variant—PTC 
 - Rare variant of PTC 
 - Approximately 3% ofall PTC
Diffuse Sclerosis ... tumor cells • Squamoid ... aakasharmand #Diffuse ... Thyroid #Cancer #Pathology ... Clinical #Gross #Microscopy