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
Herpes Simplex Virus ... DennisOMalleyMD) #Herpes #Simplex ... HSV #Pathology #Microscopy ... #Clinical #LymphNode
Hobnail variant of PTC: micropapillary architecture, dense eosinophilic cytoplasm, hobnail cells with apical nuclei, and marked
Hobnail variant of PTC ... pleomorphism beyond usual PTC ... #Papillary #Thyroid ... Carcinoma #Pathology #Clinical ... #Microscopy
Diffuse Sclerosis Variant—PTC 
 - Rare variant of PTC 
 - Approximately 3% ofall PTC
Sclerosis Variant—PTC ... Rare variant of PTC ... #Papillary #Thyroid ... Cancer #Pathology #Clinical ... #Gross #Microscopy
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 ... AIT #Pathology #Clinical ... #Microscopy
Signet ring cell histiocytes in lymph node sinuses! This can mimic metastatic adenocarcinoma. Histiocytes have ingested
#Histiocytes #LymphNode ... #Pathology #Clinical ... #Microscopy
Pity this Giant Pronormoblast from an elderly pt w pure red cell aplasia. In the proper
from an elderly pt ... Pathology #Smear #Microscopy ... #Hematology #Clinical
This macrofollicular thyroid tumor is so very bland... but so perfectly invasive! You can really never
macrofollicular thyroid ... macrofollicular #thyroid ... Invasive #Pathology #Microscopy ... #Clinical
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 ... #Clinical