Pathnologic @pathnologic
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Path Geek - All things #pathology
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Here is a lymph node that is lymphoid-depleted, fibrotic, and burned-out, typical of late phase HIV
lymphadenitis ( ... Lymphadenitis: ... #Lymphadenitis ... PatternC #Pathology #Microscopy ... #LymphNode #Clinical
Herpes Simplex Virus 
Lymphadenitis 
 • Expanded paracortex 
 • HSV-infected cells are 
present in areas
Simplex Virus Lymphadenitis ... paracortex • HSV-infected ... Simplex #Virus #Lymphadenitis ... #HSV #Pathology ... #Microscopy #Clinical
Hobnail variant of PTC: micropapillary architecture, dense eosinophilic cytoplasm, hobnail cells with apical nuclei, and marked
PTC #Papillary #Thyroid ... #Carcinoma #Pathology ... #Clinical #Microscopy
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
lymphadenitis ( ... Lymphadenitis ... #EarlyPhase #Lymphadenitis ... PatternA #Pathology #Microscopy ... #LymphNode #Clinical
Oncocytic Variant of Medullary Carcinoma
Don't assume every oncocytic thyroid tumor is a Hurthle cell neoplasm! Nested
Variant of Medullary Carcinoma ... every oncocytic thyroid ... here should raise concern ... #Pathology #Microscopy ... #Clinical
This macrofollicular thyroid tumor is so very bland... but so perfectly invasive! You can really never
macrofollicular thyroid ... for follicular carcinoma ... macrofollicular #thyroid ... Invasive #Pathology #Microscopy ... #Clinical
Diffuse Sclerosis Variant—PTC 
 - Rare variant of PTC 
 - Approximately 3% ofall PTC
Cytology: • Carcinoma ... PTC #Papillary #Thyroid ... #Cancer #Pathology ... #Clinical #Gross ... #Microscopy