Pathnologic @pathnologic
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Path Geek - All things #pathology
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clinical microscopy lymphadenitis carcinoma hiv papillary ptc variant acinic ait amiodarone brasiliensis cancer earlyphase gross herpes histiocytes hobnail hsv medullary
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
Herpes Simplex Virus Lymphadenitis • Expanded paracortex • HSV-infected cells are present in areas
• HSV-infected cells ... Lymphadenitis #HSV #Pathology ... 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 ... #Pathology #Microscopy ... #LymphNode #Clinical
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 #Clinical
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 ... #Amiodarone #thyroid ... thyrotoxicosis #AIT #Pathology
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
Hobnail variant of PTC: micropapillary architecture, dense eosinophilic cytoplasm, hobnail cells with apical nuclei, and marked
cytoplasm, hobnail cells ... PTC #Papillary #Thyroid ... #Carcinoma #Pathology
Diffuse Sclerosis Variant—PTC - Rare variant of PTC - Approximately 3% ofall PTC
Diffuse Sclerosis ... • Carcinoma cells ... around the tumor cells ... PTC #Papillary #Thyroid ... #Cancer #Pathology
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
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
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