Pathnologic @pathnologic
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clinical carcinoma hiv papillary ptc variant acinic ait amiodarone brasiliensis cancer diffuse earlyphase gross herpes histiocytes hobnail medullary oncocytic paracoccidioides
Here is a lymph node that is lymphoid-depleted, fibrotic, and burned-out, typical of late phase HIV
lymphadenitis ( ... C" in HIV Lymphadenitis ... C #HIV #Lymphadenitis ... #PatternC #Pathology ... #Microscopy #LymphNode
Herpes Simplex Virus Lymphadenitis • Expanded paracortex • HSV-infected cells are present in areas
Simplex Virus Lymphadenitis ... cells are present ... #HSV #Pathology ... #Microscopy #Clinical ... #LymphNode
Here is a lymph node with florid follicular hyperplasia typical of HIV lymphadenitis (so-called "pattern A",
A" in HIV Lymphadenitis ... Warthin-Finkeldey type giant cells ... Monocytoid B cells ... #PatternA #Pathology ... #Microscopy #LymphNode
Paracoccidioides brasiliensis Lymphadenitis: Paracoccidioidomycosis is a systemic fungal infection rare in the US, but endemic in
Paracoccidioides brasiliensis Lymphadenitis ... seen within giant cells ... #brasiliensis #Lymphadenitis ... #Pathology #LymphNode ... #Clinical #Microscopy
Signet ring cell histiocytes in lymph node sinuses! This can mimic metastatic adenocarcinoma. Histiocytes have ingested
Signet ring cell ... #SignetRing #Cell ... #Histiocytes #LymphNode ... #Pathology #Clinical ... #Microscopy
Hobnail variant of PTC: micropapillary architecture, dense eosinophilic cytoplasm, hobnail cells with apical nuclei, and marked
cytoplasm, hobnail cells ... PTC #Papillary #Thyroid ... #Carcinoma #Pathology ... #Clinical #Microscopy
Amiodarone induced thyroid changes Histopath: Remarkably enlarged follicles, distended with colloid, without scalloping, and lined by flattened
Amiodarone induced thyroid ... flattened follicular cells ... change, Follicular cells ... thyrotoxicosis #AIT #Pathology ... #Clinical #Microscopy
Oncocytic Variant of Medullary Carcinoma Don't assume every oncocytic thyroid tumor is a Hurthle cell neoplasm! Nested
every oncocytic thyroid ... tumor is a Hurthle cell ... Medullary #Carcinoma #Pathology ... #Microscopy #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 ... #Microscopy #Clinical
Diffuse Sclerosis Variant—PTC - Rare variant of PTC - Approximately 3% ofall PTC
• Carcinoma cells ... around the tumor cells ... PTC #Papillary #Thyroid ... #Cancer #Pathology ... Clinical #Gross #Microscopy
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