Pathnologic @pathnologic
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Hobnail variant of PTC: micropapillary architecture, dense eosinophilic cytoplasm, hobnail cells with apical nuclei, and marked
Hobnail variant ... of PTC: micropapillary ... #Papillary #Thyroid ... Carcinoma #Pathology #Clinical ... #Microscopy
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
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
lymphadenitis ( ... Lymphadenitis ... Warthin-Finkeldey type giant ... PatternA #Pathology #Microscopy ... #LymphNode #Clinical
Diffuse Sclerosis Variant—PTC 
 - Rare variant of PTC 
 - Approximately 3% ofall PTC
Diffuse Sclerosis Variant—PTC ... - Rare variant ... #Thyroid #Cancer ... #Pathology #Clinical ... #Gross #Microscopy
Paracoccidioides brasiliensis Lymphadenitis: 

Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
Paracoccidioides brasiliensis Lymphadenitis ... be seen within giant ... #brasiliensis #Lymphadenitis ... Pathology #LymphNode #Clinical ... #Microscopy
Pity this Giant Pronormoblast from an elderly pt w pure red cell aplasia. In the proper
Pity this Giant ... from an elderly pt ... dannyjlubinpath #Giant ... Pathology #Smear #Microscopy ... #Hematology #Clinical
Oncocytic Variant of Medullary Carcinoma
Don't assume every oncocytic thyroid tumor is a Hurthle cell neoplasm! Nested
Oncocytic Variant ... every oncocytic thyroid ... for oncocytic variant ... Carcinoma #Pathology #Microscopy ... #Clinical