Pathnologic @pathnologic
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microscopy pathology clinical lymphadenitis hiv brasiliensis carcinoma cell cilnical disease earlyphase epithelial extramedullaryhematopoiesis heck herpes histiocytes honc hyperplasia medullary mri
Herpes Simplex Virus Lymphadenitis • Expanded paracortex • HSV-infected cells are present in areas
paracortex • HSV-infected ... Lymphadenitis #HSV ... Microscopy #Clinical #LymphNode
Here is a lymph node that is lymphoid-depleted, fibrotic, and burned-out, typical of late phase HIV
of late phase HIV ... "Pattern C" in HIV ... with late phase HIV ... pattern C #HIV ... Pathology #Microscopy #LymphNode
Paracoccidioides brasiliensis Lymphadenitis: Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
Lymphadenitis #Pathology #LymphNode
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
hyperplasia typical of HIV ... in early phase HIV ... "Pattern A" in HIV ... Monocytoid B cells #HIV ... Pathology #Microscopy #LymphNode
Focal epithelial hyperplasia/Heck disease. Acanthotic squamous epithelium with widened, confluent rete ridges, mild koilocytic change, and
Focal epithelial ... Usually caused by HPV ... LisaRooperMD #Focal
Signet ring cell histiocytes in lymph node sinuses! This can mimic metastatic adenocarcinoma. Histiocytes have ingested
#Histiocytes #LymphNode
Oncocytic Variant of Medullary Carcinoma Don't assume every oncocytic thyroid tumor is a Hurthle cell neoplasm! Nested
chromatin, and focal
Perirenal Extramedullary Hematopoiesis - Magnetic resonance imaging of the abdomen, performed without the administration of contrast
yellow arrow), with focal
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