Pathnologic @pathnologic
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Herpes Simplex Virus 
Lymphadenitis 
 • Expanded paracortex 
 • HSV-infected cells are 
present in areas
HSV #Pathology #Microscopy ... #Clinical #LymphNode
Here is a lymph node that is lymphoid-depleted, fibrotic, and burned-out, typical of late phase HIV
PatternC #Pathology #Microscopy ... #LymphNode #Clinical
Paracoccidioides brasiliensis Lymphadenitis: 

Paracoccidioidomycosis is a systemic fungal infection rare in the 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 ... #Amiodarone #thyroid ... Pathology #Clinical #Microscopy
Oncocytic Variant of Medullary Carcinoma
Don't assume every oncocytic thyroid tumor is a Hurthle cell neoplasm! Nested
every oncocytic thyroid ... chromatin, and focal ... Carcinoma #Pathology #Microscopy
Hobnail variant of PTC: micropapillary architecture, dense eosinophilic cytoplasm, hobnail cells with apical nuclei, and marked
PTC #Papillary #Thyroid ... Pathology #Clinical #Microscopy
Signet ring cell histiocytes in lymph node sinuses! This can mimic metastatic adenocarcinoma. Histiocytes have ingested
#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 ... Sarcoid #Granuloma #Thyroid ... #Pathology #Microscopy
Focal epithelial hyperplasia/Heck disease. Acanthotic squamous epithelium with widened, confluent rete ridges, mild koilocytic change, and
Focal epithelial ... LisaRooperMD #Focal ... disease #Pathology #Microscopy
This macrofollicular thyroid tumor is so very bland... but so perfectly invasive! You can really never
macrofollicular thyroid ... macrofollicular #thyroid ... Invasive #Pathology #Microscopy