Pathnologic @pathnologic
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clinical pathology microscopy lymphadenitis carcinoma hiv acinic arm body bonemarrow brasiliensis cd138 derm dermatology disease earlyphase graft gvhd hallmarks hematology
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
Here is a lymph ... KyleBradleyMD "Pattern ... Warthin-Finkeldey type giant cells ... Monocytoid B cells ... Pathology #Microscopy #LymphNode
Herpes Simplex Virus Lymphadenitis • Expanded paracortex • HSV-infected cells are present in areas
Herpes Simplex Virus ... • HSV-infected cells ... DennisOMalleyMD) #Herpes ... Microscopy #Clinical #LymphNode
Here is a lymph node that is lymphoid-depleted, fibrotic, and burned-out, typical of late phase HIV
Here is a lymph ... KyleBradleyMD "Pattern ... infection) - "Pattern ... phase between pattern ... 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
Here are the morphological hallmarks of Rhabdomyosarcoma. - Broken arrow sign - tad-pole rhabdomyoblasts
Here are the morphological ... rhabdomyoblasts - Wraith cells
Signet ring cell histiocytes in lymph node sinuses! This can mimic metastatic adenocarcinoma. Histiocytes have ingested
Signet ring cell ... #SignetRing #Cell ... #Histiocytes #LymphNode
Acute Graft versus Host disease: vacuolar interface dermatitis w/ lymphoexocytosis, dyskeratotic keratinocytes, notable satellite cell necrosis.
notable satellite cell ... after BMT like here
Olfactory Neuroblastoma Pathology Morphology and other IHC clinched the diagnosis of olfactory neuroblastoma here. The tumor had
neuroblastoma here ... sustentacular cells
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
Myeloma: In this BM core, most plasma cells contain cytoplasmic immunoglobulin (Russell bodies). They're difficult to identify
core, most plasma cells ... identify as plasma cells ... CD138 helps (same
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