Pathnologic @pathnologic
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Path Geek - All things #pathology
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Here is a lymph node that is lymphoid-depleted, fibrotic, and burned-out, typical of late phase HIV
KyleBradleyMD "Pattern ... infection) - "Pattern ... phase between pattern ... Pathology #Microscopy #LymphNode ... #Clinical
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
lymphadenitis (so-called "pattern ... KyleBradleyMD "Pattern ... Lymphadenitis #PatternA ... Pathology #Microscopy #LymphNode ... #Clinical
Tinea Versicolor - Physical examination revealed large, coalescing, hypopigmented patches and macules on her torso and
torso and upper arms ... and meatball” pattern ... #Clinical #Derm
Herpes Simplex Virus 
Lymphadenitis 
 • Expanded paracortex 
 • HSV-infected cells are 
present in areas
HSV-infected cells are ... Pathology #Microscopy #Clinical ... #LymphNode
Paracoccidioides brasiliensis Lymphadenitis: 

Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
Nodes, and lungs are ... Lymphadenitis #Pathology #LymphNode ... #Clinical #Microscopy
Excoriated papules with honey-colored crusting were present on the abdomen, back (Panel A), arms, and legs.
back (Panel A), arms ... #Clinical #Derm
Schistocytes - The arrows point to schistocytes which are fragmented red blood cells. Also called schizocytes,
schistocytes which are ... Schistocytes are ... a more generic term ... Clinical conditions ... #Clinical #Path
Salivary acinic cell carcinoma is usually an H&E diagnosis for me- but this zymogen-granule poor variant
characteristic staining pattern ... Pathology #Microscopy #Clinical
Grouped Pustules on an Erythematous Base - On physical examination, grouped, coalescing pustules that had scalloped
seen on the left arm ... #Clinical #Derm ... Pathology #Herpes #Arm
Glucagonoma-Associated Rash - The rash involved the arms, genitals, and buttocks and had progressed to the
rash involved the arms ... resolve (Panel D) #Clinical ... #HONC #Derm #Pathology