Pathnologic @pathnologic
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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
Herpes Simplex Virus 
Lymphadenitis 
 • Expanded paracortex 
 • HSV-infected cells are 
present in areas
• HSV-infected cells ... are present in ... Lymphadenitis #HSV #Pathology ... Microscopy #Clinical #LymphNode
Tinea Versicolor - Physical examination revealed large, coalescing, hypopigmented patches and macules on her torso and
torso and upper arms ... and meatball” pattern ... #Clinical #Derm ... #Pathology #Tinea
Paracoccidioides brasiliensis Lymphadenitis: 

Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
Nodes, and lungs are ... fibrosis (A) and well-formed ... seen within giant cells ... Lymphadenitis #Pathology ... #LymphNode #Clinical
Salivary acinic cell carcinoma is usually an H&E diagnosis for me- but this zymogen-granule poor variant
Salivary acinic cell ... characteristic staining pattern ... Salivary #Acinic #Cell ... #Carcinoma #Pathology
Grouped Pustules on an Erythematous Base - On physical examination, grouped, coalescing pustules that had scalloped
seen on the left arm ... multinucleated giant cells ... #Clinical #Derm ... #Pathology #Herpes ... #Arm #Pustules
Glucagonoma-Associated Rash - The rash involved the arms, genitals, and buttocks and had progressed to the
rash involved the arms ... tissue revealed a well-circumscribed ... Clinical #HONC #Derm ... #Pathology #Radiology