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 ... • HSV-infected cells ... are present in ... HSV #Pathology #Microscopy ... #Clinical #LymphNode
Comparison of basophils and mast cells (in bone marrow).

#Basophils #MastCells #Pathology #Marrow #Smear #Microscopy #Comparison #Table
Comparison of basophils ... and mast cells ... (in bone marrow) ... Marrow #Smear #Microscopy ... #Comparison #Table
Paracoccidioides brasiliensis Lymphadenitis: 

Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
infection rare in ... US, but endemic in ... seen within giant cells ... Lymphadenitis #Pathology #LymphNode ... #Clinical #Microscopy
Signet ring cell histiocytes in lymph node sinuses! This can mimic metastatic adenocarcinoma. Histiocytes have ingested
Signet ring cell ... histiocytes in ... #SignetRing #Cell ... #Histiocytes #LymphNode ... Pathology #Clinical #Microscopy
Amiodarone induced thyroid changes

Histopath: Remarkably enlarged follicles, distended with colloid, without 
scalloping, and lined by flattened
Amiodarone induced thyroid ... flattened follicular cells ... change, Follicular cells ... #Amiodarone #thyroid ... Pathology #Clinical #Microscopy
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
"Pattern A" in ... Warthin-Finkeldey type giant cells ... Monocytoid B cells ... PatternA #Pathology #Microscopy ... #LymphNode #Clinical
Diffuse Sclerosis Variant—PTC 
 - Rare variant of PTC 
 - Approximately 3% ofall PTC
PTC - Common in ... • Carcinoma cells ... around the tumor cells ... PTC #Papillary #Thyroid ... Clinical #Gross #Microscopy