Pathnologic @pathnologic
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Path Geek - All things #pathology
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clinical nejm lymphadenitis herpes papillary ptc rash smear thyroid acanthocytes actinomycosis angiocentric arm brasiliensis cancer carcinoma center ct cutaneous dermatology
Herpes Simplex Virus Lymphadenitis • Expanded paracortex • HSV-infected cells are present in areas
• HSV-infected cells ... Lymphadenitis #HSV #Pathology ... #Microscopy #Clinical ... #LymphNode
Eyelid Melanoma - Despite conservative interventions, the stye had persisted and the skin had become noticeably
Eyelid Melanoma ... lentigo maligna melanoma ... C) #Clinical #Pathology ... #Derm #Eyelid # ... Melanoma #Microscopy
Eosinophilic angiocentric fibrosis: IgG4-related disease of the upper aerodigestive tract. Distinctive concentric (onion-skin) perivascular fibrosis and
Eosinophilic angiocentric ... : IgG4-related disease ... 50 IgG4+ plasma cells ... angiocentric #fibrosis #Pathology ... #Clinical #Microscopy
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 ... #Microscopy
Beautiful acanthocytes/spur cells in a patient with McLeod Syndrome. X-linked disorder characterized by reduced expression of
acanthocytes/spur cells ... expression of Kell ... granulomatous disease ... Syndrome #Smear #Pathology ... #Microscopy #Clinical
Acute Graft versus Host disease: vacuolar interface dermatitis w/ lymphoexocytosis, dyskeratotic keratinocytes, notable satellite cell necrosis.
Graft versus Host disease ... notable satellite cell ... #versus #Host #disease ... #Pathology #Microscopy
Hobnail variant of PTC: micropapillary architecture, dense eosinophilic cytoplasm, hobnail cells with apical nuclei, and marked
architecture, dense eosinophilic ... cytoplasm, hobnail cells ... Thyroid #Carcinoma #Pathology ... #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
Focus of Metastatic Melanoma Colonizing a Germinal Center I thought these big cells were funny immunoblasts- until
of Metastatic Melanoma ... thought these big cells ... of metastatic melanoma ... germinal #center #Pathology ... #Clinical #Microscopy
Langerhans cell histiocytosis presenting as a solitary jaw cyst. Classic reniform nuclei, prominent eosinophils, S100+, CD1A+,
Langerhans cell ... nuclei, prominent eosinophils ... #Langerhans #cell ... histiocytosis #Jaw #Pathology ... #Microscopy #Clinical
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