Pathnologic @pathnologic
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clinical microscopy pathology lymphadenitis hiv acinic brasiliensis carcinoma earlyphase herpes hsv paracoccidioides patternc salivary signetring simplex virus
Signet ring cell histiocytes in lymph node sinuses! This can mimic metastatic adenocarcinoma. Histiocytes have ingested
Signet ring cell ... histiocytes in ... Histiocytes have ... #SignetRing #Cell ... #Histiocytes #LymphNode
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 ... Lymphadenitis #PatternC ... Pathology #Microscopy #LymphNode
Herpes Simplex Virus Lymphadenitis • Expanded paracortex • HSV-infected cells are present in areas
• HSV-infected cells ... Microscopy #Clinical #LymphNode
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
KyleBradleyMD "Pattern ... Warthin-Finkeldey type giant cells ... Monocytoid B cells ... Lymphadenitis #PatternA ... Pathology #Microscopy #LymphNode
Paracoccidioides brasiliensis Lymphadenitis: Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
fibrosis (A) and well-formed ... seen within giant cells ... Lymphadenitis #Pathology #LymphNode
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
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