Pathnologic @pathnologic
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Path Geek - All things #pathology
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Herpes Simplex Virus 
Lymphadenitis 
 • Expanded paracortex 
 • HSV-infected cells are 
present in areas
paracortex • HSV-infected ... cells are present ... Lymphadenitis #HSV ... #Pathology #Microscopy ... #Clinical #LymphNode
Hobnail variant of PTC: micropapillary architecture, dense eosinophilic cytoplasm, hobnail cells with apical nuclei, and marked
Hobnail variant ... cytoplasm, hobnail cells ... PTC #Papillary #Thyroid ... Pathology #Clinical #Microscopy
Diffuse Sclerosis Variant—PTC 
 - Rare variant of PTC 
 - Approximately 3% ofall PTC
Diffuse Sclerosis ... • Carcinoma cells ... around the tumor cells ... PTC #Papillary #Thyroid ... Clinical #Gross #Microscopy
Oncocytic Variant of Medullary Carcinoma
Don't assume every oncocytic thyroid tumor is a Hurthle cell neoplasm! Nested
Oncocytic Variant ... every oncocytic thyroid ... tumor is a Hurthle cell ... for oncocytic variant ... Carcinoma #Pathology #Microscopy
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
in early phase HIV ... Warthin-Finkeldey type giant cells ... Monocytoid B cells ... PatternA #Pathology #Microscopy ... #LymphNode #Clinical