Adult with 2 cm parotid mass sent for intraoperative consultation
📸: solitary, largely circumscribed, cut surface w internal heterogeneity
📸: touch prep - monotonous cells (myoeps) w/i basophilic matrix
📸: low mag nodule contour at frozen section
…next
#PathSky #ENTsky
📸 macro: portion of helix, formalin-fixed with multiple punctate lesions (arrow) and small plaques
📸 macro, cut-surface: firm, rust/white colored plaques confined to epidermis
#dermpath #Pathsky
#PathSky #Pathology #ENTPath #HeadNeckPath #EmoryPathology
#PathSky #Pathology #ENTPath #HeadNeckPath #EmoryPathology
PMID: 39177813
PMID: 39177813
📸 tyrosine-like crystalloids w/i anterior macula flava (is chondroid here)
📸 TLCs not commonly seen at frozens
PMID: 39177813
#Pathsky
📸 tyrosine-like crystalloids w/i anterior macula flava (is chondroid here)
📸 TLCs not commonly seen at frozens
PMID: 39177813
#Pathsky
Dx: oral hairy leukoplakia
Low: epithelial hyperplasia, shaggy corrugated parakeratotic surface, often pallor in spinous layer
High: perinuclear clearing, nuclear beading
EBV ISH (red): nuclear signal in affected cells
#PathSky
Dx: oral hairy leukoplakia
Low: epithelial hyperplasia, shaggy corrugated parakeratotic surface, often pallor in spinous layer
High: perinuclear clearing, nuclear beading
EBV ISH (red): nuclear signal in affected cells
#PathSky
Dx: lingual osseous choristoma
📸: oral mucosa with central focus of dense lamellar bone
📸: relation of bone to overlying oral squamous epithelium
📸: lamellar bone (slightly over-decal’d) with evidence of remodeling
#PathSky #ENTsky
Intraop: stapes fixed, remainder of ossicular chain mobile.
📸: stapes with remodeling, transected above footplate
📸: evolving pseudocyst w/i the articular surface (reactive)
#PathSky #ENTpath #PathTwitter #EmoryPathology
Intraop: stapes fixed, remainder of ossicular chain mobile.
📸: stapes with remodeling, transected above footplate
📸: evolving pseudocyst w/i the articular surface (reactive)
#PathSky #ENTpath #PathTwitter #EmoryPathology
📸 Same, just higher mag
📸 Generally surfaced by fibrocartilage (but may be mixed). Synovium present
📸 Synovial lining
#PathSky #ENTPath #PathTwitter
#EmoryPathology
📸 Same, just higher mag
📸 Generally surfaced by fibrocartilage (but may be mixed). Synovium present
📸 Synovial lining
#PathSky #ENTPath #PathTwitter
#EmoryPathology
#PathSky #ENTPath #HeadNeckPath #OralPath #PathTwitter
#PathSky #ENTPath #HeadNeckPath #OralPath #PathTwitter
Dx: Hyalinizing clear cell ca.
➡️Nests of eosinophilic and/or clear cells. Helpful: 2 ‘types’ of fibrosis (dense hyalinization and fibrolamellar stromal fibrosis).
#PathSky #ENTsky #HeadNeckSky
Dx: Hyalinizing clear cell ca.
➡️Nests of eosinophilic and/or clear cells. Helpful: 2 ‘types’ of fibrosis (dense hyalinization and fibrolamellar stromal fibrosis).
#PathSky #ENTsky #HeadNeckSky
Dx: Epithelial-myoepithelial carcinoma. Biphasic salivary gland carcinoma composed of tightly coupled eosinophilic ductal cells and abluminal myoepithelial cells. Diffuse RAS Q61R IHC expression supportive while working thru the ddx.
PMID: 33481388
#PathSky
Dx: Epithelial-myoepithelial carcinoma. Biphasic salivary gland carcinoma composed of tightly coupled eosinophilic ductal cells and abluminal myoepithelial cells. Diffuse RAS Q61R IHC expression supportive while working thru the ddx.
PMID: 33481388
#PathSky
Dx: Subchondral cyst (SC)
SC identified on sagittal CT & subsequently on microscopic examination. 📸➡️ TMJ SC is spherical subchondral lesion w/myxoid change surrounded by reactive bone. Articular cartilage with degenerative changes.
#PathSky #RadSky
🙌 🙏 to author KV in PMID:38637342 for teaching me!
#PathSky #Thyroid #Endosky
Myospherulosis represents altered RBCs in cyst-like spaces, surrounded by fibrosis. At high magnification, note the pigmented spherical bodies (‘bag of marbles’). Potentially a fungal mimic ➡️ PAS/GMS neg.
#PathSky #OralPath #PathTwitter
Myospherulosis represents altered RBCs in cyst-like spaces, surrounded by fibrosis. At high magnification, note the pigmented spherical bodies (‘bag of marbles’). Potentially a fungal mimic ➡️ PAS/GMS neg.
#PathSky #OralPath #PathTwitter
#PathSky #RadSky #OralPath #ENTPath #HeadNeckPath
#PathSky #RadSky #OralPath #ENTPath #HeadNeckPath
Other sites:
Middle ear/temporal bone: PMID: 32366754
Larynx PMID: 40299135
Lung PMID: 35773081
Other sites:
Middle ear/temporal bone: PMID: 32366754
Larynx PMID: 40299135
Lung PMID: 35773081
PMID: 23379326
PMID: 39235305 (fig 3)
PMID: 23379326
PMID: 39235305 (fig 3)
Uncommon. Generally located along anterior maxillary gingiva in young people. Asymptomatic plaque(s), usually bilateral and white in color. No known risk of transformation.
PMID: 28089460
#PathSky #OralPath #ENTPath #EmoryPathology
Uncommon. Generally located along anterior maxillary gingiva in young people. Asymptomatic plaque(s), usually bilateral and white in color. No known risk of transformation.
PMID: 28089460
#PathSky #OralPath #ENTPath #EmoryPathology
#PathSky #Pathology #ENTPath #HeadNeckPath #EmoryPathology
#PathSky #Pathology #ENTPath #HeadNeckPath #EmoryPathology