Search Results for peripheral

MALIGNANT PERIPHERAL NERVE SHEATH TUMOR Figure 1-124 MALIGNANT PERIPHERAL NERVE SHEATH TUMOR A: Alternating light and dark zones are notable at low power in this spindle cell tumor. B: Fascicles of elongated cells with hyperchromatic nuclei are seen, as is necrosis. C: S-100 protein More about this image found in MALIGNANT PERIPHERAL NERVE SHEATH TUMOR A: Alternating light and dark zone...

EPITHELIOID MALIGNANT PERIPHERAL NERVE SHEATH TUMOR Figure 1-125 EPITHELIOID MALIGNANT PERIPHERAL NERVE SHEATH TUMOR A: Solid nests of undifferentiated epithelioid cells are seen. B,C: In contrast to conventional malignant peripheral nerve sheath tumor, the epithelioid subtype is diffusely More about this image found in EPITHELIOID MALIGNANT PERIPHERAL NERVE SHEATH TUMOR A: Solid nests of undi...

PERIPHERAL OSSIFYING FIBROMA Figure 4-54 PERIPHERAL OSSIFYING FIBROMA A: Exophytic, firm, white to mucosal-colored nodule on the maxillary gingiva. B: Hyperplastic epithelium overlies markedly cellular stroma. C: The stroma is composed of ovoid fibroblasts admixed with woven bone. D: Various More about this image found in PERIPHERAL OSSIFYING FIBROMA A: Exophytic, firm, white to mucosal-colored ...

PERIPHERAL GIANT CELL GRANULOMA Figure 4-55 PERIPHERAL GIANT CELL GRANULOMA A: Exophytic, liver-colored mucosa on the mandibular gingiva. B: Unencapsulated cellular lesion with extravasated red blood cells. C: The vascularized stroma supports multinucleated giant cells. D: Multinucleated More about this image found in PERIPHERAL GIANT CELL GRANULOMA A: Exophytic, liver-colored mucosa on the ...

FOLLICULAR AMELOBLASTOMA Figure 5-41 FOLLICULAR AMELOBLASTOMA Palisaded and hyperchromatic peripheral cells are prominent. More about this image found in FOLLICULAR AMELOBLASTOMA Palisaded and hyperchromatic peripheral cells are...

FOLLICULAR AMELOBLASTOMA Figure 5-42 FOLLICULAR AMELOBLASTOMA The tumor islands show peripheral palisading with reverse nuclear polarity and subnuclear vacuolization. More about this image found in FOLLICULAR AMELOBLASTOMA The tumor islands show peripheral palisading with...

AMELOBLASTIC FIBROMA Figure 5-73 AMELOBLASTIC FIBROMA Some of the lamina open up with the peripheral cells showing palisading and reverse nuclear polarity. This should not be interpreted as ameloblastoma. More about this image found in AMELOBLASTIC FIBROMA Some of the lamina open up with the peripheral cells ...

DENTINOGENIC GHOST CELL TUMOR Figure 5-87 DENTINOGENIC GHOST CELL TUMOR Peripheral presentation. More about this image found in DENTINOGENIC GHOST CELL TUMOR Peripheral presentation.

CEMENTOBLASTOMA Figure 5-111 CEMENTOBLASTOMA The perpendicular orientation of the peripheral trabeculae to the capsule is characteristic. More about this image found in CEMENTOBLASTOMA The perpendicular orientation of the peripheral trabeculae...

, and a “waist” (white arrow) at the cribriform plate. Peripheral hyperintense areas correlate to cystic regions. C: Positron emission tomography (PET)-CT shows high activity in the region of the tumor (white arrow). D: An axial fat-suppressed T2 MRI highlights peripheral calcifications (white arrow) and cysts. More about this image found in OLFACTORY NEUROBLASTOMA A: Sagittal CT shows a mass at the cribriform plat...

DENTINOGENIC GHOST CELL TUMOR Figure 5-89 DENTINOGENIC GHOST CELL TUMOR A,B: Characteristic epithelial proliferation with peripheral palisading and numerous ghost cells. More about this image found in DENTINOGENIC GHOST CELL TUMOR A,B: Characteristic epithelial proliferation...

AMELOBLASTIC CARCINOMA Figure 5-14 AMELOBLASTIC CARCINOMA A: Cytologically atypical epithelial cells with dyskeratosis. B: Ameloblastic carcinoma with cytologic atypia and peripheral palisading with reverse nuclear polarity. More about this image found in AMELOBLASTIC CARCINOMA A: Cytologically atypical epithelial cells with dys...

GHOST CELL ODONTOGENIC CARCINOMA Figure 5-30 GHOST CELL ODONTOGENIC CARCINOMA Hypercellular basaloid tumor with some peripheral palisading containing prominent collections of ghost cells. More about this image found in GHOST CELL ODONTOGENIC CARCINOMA Hypercellular basaloid tumor with some pe...

ENDOLYMPHATIC SAC TUMOR Figure 8-126 ENDOLYMPHATIC SAC TUMOR A: Secretions fill the cystic spaces. B: Eosinophilic, colloid-like material with peripheral scalloping is noted in this tumor. More about this image found in ENDOLYMPHATIC SAC TUMOR A: Secretions fill the cystic spaces. B: Eosinoph...

CLEAR CELL ODONTOGENIC CARCINOMA Figure 5-28 CLEAR CELL ODONTOGENIC CARCINOMA The characteristic biphasic pattern of central clear cells with more basaloid eosinophilic cells peripherally is seen. More about this image found in CLEAR CELL ODONTOGENIC CARCINOMA The characteristic biphasic pattern of ce...

GHOST CELL ODONTOGENIC CARCINOMA Figure 5-32 GHOST CELL ODONTOGENIC CARCINOMA Hypercellular tumor displays cytologic atypia and high mitotic index. Peripheral palisading can be prominent. More about this image found in GHOST CELL ODONTOGENIC CARCINOMA Hypercellular tumor displays cytologic at...

DEVELOPING ODONTOMA Figure 5-86 DEVELOPING ODONTOMA The enamel organs can be prominent and characterized by peripheral cells that are palisaded with reverse nuclear polarity, but these are normal ameloblasts and should not be misdiagnosed as ameloblastoma. More about this image found in DEVELOPING ODONTOMA The enamel organs can be prominent and characterized b...

SQUAMOUS ODONTOGENIC TUMOR Figure 5-55 SQUAMOUS ODONTOGENIC TUMOR Cytologic features show bland terminally differentiated islands of squamous epithelium without cytologic atypia or peripheral palisading and reverse nuclear polarity. More about this image found in SQUAMOUS ODONTOGENIC TUMOR Cytologic features show bland terminally differ...

SCHWANNOMA Figure 1-81 SCHWANNOMA A–C: The Antoni B areas show myxoid change between the hypercellular areas (A), markedly hypocellular areas with delicate spindled cells (B), and edema and degeneration (C). D: A peripheral lymphoid infiltrate is frequently present in schwannoma. More about this image found in SCHWANNOMA A–C: The Antoni B areas show myxoid change between the hypercel...

SCHWANNOMA Figure 1-78 SCHWANNOMA A: An axial CT of a nasopalatine schwannoma shows a well-defined soft tissue density. B: A magnetic resonance image (MRI) T1-weighted fat-suppressed coronal view of a schwannoma shows peripheral high signal and central mottling. More about this image found in SCHWANNOMA A: An axial CT of a nasopalatine schwannoma shows a well-define...