Pathnologic @pathnologic
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Herpes Simplex Virus 
Lymphadenitis 
 • Expanded paracortex 
 • HSV-infected cells are 
present in areas
Herpes Simplex Virus ... DennisOMalleyMD) #Herpes #Simplex ... Lymphadenitis #HSV #Pathology ... #Microscopy #Clinical ... #LymphNode
Disseminated Blastomycosis - Computed tomography (CT) of his chest showed an infiltrate in the right upper
Computed tomography (CT ... InfectiousDisease #Pathology ... Blastomycosis #CT ... #KOH #BroadBasedBud ... #Microscopy #NEJM
Here is a lymph node that is lymphoid-depleted, fibrotic, and burned-out, typical of late phase HIV
Lymphadenitis #PatternC #Pathology ... #Microscopy #LymphNode
Paracoccidioides brasiliensis Lymphadenitis: 

Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
Lymphadenitis #Pathology ... #LymphNode #Clinical ... #Microscopy
Urinary Tract Tuberculosis - Contrast-enhanced computed tomography (CT) of the abdomen showed mild dilatation of the
computed tomography (CT ... excretory phase on CT ... Clinical #Radiology #Pathology ... #CT #Urogenital ... AcidFastBacilli #Microscopy
Signet ring cell histiocytes in lymph node sinuses! This can mimic metastatic adenocarcinoma. Histiocytes have ingested
#Histiocytes #LymphNode ... #Pathology #Clinical ... #Microscopy
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
Lymphadenitis #PatternA #Pathology ... #Microscopy #LymphNode
Glucagonoma-Associated Rash - The rash involved the arms, genitals, and buttocks and had progressed to the
Clinical #HONC #Derm #Pathology ... Glucagonoma #Rash #Microscopy ... #CT #NEJM