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Figure 1-4
Published: 01 June 2025
ANTROCHOANAL POLYP Figure 1-4 ANTROCHOANAL POLYP A finger-like, elongated mass (A) protrudes into the nasal cavity from the ostium (B). The surface may be eroded and the polyps are frequently soft due to edema. More about this image found in ANTROCHOANAL POLYP A finger-like, elongated mass (A) protrudes into the na...
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Figure 1-10
Published: 01 June 2025
ANTROCHOANAL POLYP Figure 1-10 ANTROCHOANAL POLYP A: The prominent fibrosis and finger-like appearance are apparent at low power. B: In addition to prominent stromal fibrosis, antrochoanal polyps have fewer eosinophils than a typical inflammatory polyp, and they lack a thickened basement More about this image found in ANTROCHOANAL POLYP A: The prominent fibrosis and finger-like appearance ar...
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Figure 1-51
Published: 01 June 2025
RENAL CELL CARCINOMA-LIKE LOW-GRADE NONINTESTINAL SINONASAL ADENOCARCINOMA Figure 1-51 RENAL CELL CARCINOMA-LIKE LOW-GRADE NONINTESTINAL SINONASAL ADENOCARCINOMA A: The tumor grows as follicles lined by polygonal cells with well-defined cell borders and optically clear cytoplasm, resembling More about this image found in RENAL CELL CARCINOMA-LIKE LOW-GRADE NONINTESTINAL SINONASAL ADENOCARCINOMA ...
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Figure 1-112
Published: 01 June 2025
INFLAMMATORY MYOFIBROBLASTIC TUMOR Figure 1-112 INFLAMMATORY MYOFIBROBLASTIC TUMOR A: Numerous ganglion-like cells (black arrow) are seen in an inflammatory background. B: This tumor shows a bland spindled cell proliferation without significant inflammation. C: A hypocellular, slightly More about this image found in INFLAMMATORY MYOFIBROBLASTIC TUMOR A: Numerous ganglion-like cells (black ...
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Figure 1-156
Published: 01 June 2025
ADAMANTINOMA-LIKE EWING SARCOMA Figure 1-156 ADAMANTINOMA-LIKE EWING SARCOMA A: The tumor grows as solid nests and cords of primitive-appearing cells. B: Scattered foci of abrupt squamous differentiation are sometimes seen. C, D: In contrast to conventional Ewing sarcoma, the adamantinoma-like More about this image found in ADAMANTINOMA-LIKE EWING SARCOMA A: The tumor grows as solid nests and cord...
Images
Figure 4-20
Published: 01 June 2025
ORAL DYSPLASIA Figure 4-20 ORAL DYSPLASIA A: The band-like inflammatory infiltrate at the epithelial-stromal interface imparts a “lichenoid” appearance. B: Severe dysplasia arises abruptly from histologically normal epithelium. More about this image found in ORAL DYSPLASIA A: The band-like inflammatory infiltrate at the epithelial-...
Images
Figure 5-66
Published: 01 June 2025
ADENOMATOID ODONTOGENIC TUMOR Figure 5-66 ADENOMATOID ODONTOGENIC TUMOR The nuclei of the duct-like areas are often polarized away from the lumen. More about this image found in ADENOMATOID ODONTOGENIC TUMOR The nuclei of the duct-like areas are often ...
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Figure 5-70
Published: 01 June 2025
AMELOBLASTIC FIBROMA Figure 5-70 AMELOBLASTIC FIBROMA Low-power view of characteristic lamina-like strands of odontogenic epithelium in a highly cellular embryonal ectomesenchymal stroma. More about this image found in AMELOBLASTIC FIBROMA Low-power view of characteristic lamina-like strands ...
Images
Figure 5-81
Published: 01 June 2025
COMPOUND ODONTOMA Figure 5-81 COMPOUND ODONTOMA Numerous small tooth-like calcified masses are within the dental follicle in which they develop. More about this image found in COMPOUND ODONTOMA Numerous small tooth-like calcified masses are within th...
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Figure 5-90
Published: 01 June 2025
DENTINOGENIC GHOST CELL TUMOR Figure 5-90 DENTINOGENIC GHOST CELL TUMOR Ameloblastoma-like proliferation with dentinoid. More about this image found in DENTINOGENIC GHOST CELL TUMOR Ameloblastoma-like proliferation with dentin...
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Figure 5-133
Published: 01 June 2025
APICAL PERIODONTAL CYST Figure 5-133 APICAL PERIODONTAL CYST Squamous odontogenic tumor-like proliferation in the wall of an APC. This should not be confused with a true SOT. More about this image found in APICAL PERIODONTAL CYST Squamous odontogenic tumor-like proliferation in t...
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Figure 5-195
Published: 01 June 2025
MESENCHYMAL CHONDROSARCOMA Figure 5-195 MESENCHYMAL CHONDROSARCOMA A: The perivascular, hemangiopericytoma-like pattern of primitive round to spindled cells of mesenchymal chondrosarcoma may mimic Ewing sarcoma. B: Strong and diffuse membrane positivity of CD99 in the small cells. More about this image found in MESENCHYMAL CHONDROSARCOMA A: The perivascular, hemangiopericytoma-like pa...
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Figure 5-208
Published: 01 June 2025
JUVENILE TRABECULAR OSSIFYING FIBROMA Figure 5-208 JUVENILE TRABECULAR OSSIFYING FIBROMA There is a lattice-like proliferation of immature interconnecting trabeculae within a cellular fibrous stroma. More about this image found in JUVENILE TRABECULAR OSSIFYING FIBROMA There is a lattice-like proliferatio...
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Figure 6-29
Published: 01 June 2025
KERATOSIS Figure 6-29 KERATOSIS A plaque-like, white, nondysplastic lesion is seen on the right vocal cord. This was identified as an incidental finding at autopsy. More about this image found in KERATOSIS A plaque-like, white, nondysplastic lesion is seen on the right ...
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Figure 5-67
Published: 01 June 2025
ADENOID AMELOBLASTOMA Figure 5-67 ADENOID AMELOBLASTOMA A: Low-power view of an epithelial tumor with numerous duct-like spaces producing a cribriform pattern. B: Basaloid epithelial cells with numerous duct-like spaces lined by columnar epithelium. Cells at the periphery of the sheets More about this image found in ADENOID AMELOBLASTOMA A: Low-power view of an epithelial tumor with numero...
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Figure 5-219
Published: 01 June 2025
CHERUBISM Figure 5-219 CHERUBISM A: Vascular fibrous tissue with scattered multinucleated osteoclast-like giant cells and hemorrhage. B: Eosinophilic cuff-like perivascular deposits (arrow) within the monotonous edematous spindle cell stroma. More about this image found in CHERUBISM A: Vascular fibrous tissue with scattered multinucleated osteocl...
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Figure 8-100
Published: 01 June 2025
MIDDLE EAR NEUROENDOCRINE TUMOR Figure 8-100 MIDDLE EAR NEUROENDOCRINE TUMOR Several patterns of growth are seen in these tumors: a solid to cystic and glandular pattern (A); cord-like, solid, glandular, and single cell patterns (B); solid to single cell with myxoid stroma (C); and sheet-like More about this image found in MIDDLE EAR NEUROENDOCRINE TUMOR Several patterns of growth are seen in the...
Images
Figure 1-91
Published: 01 June 2025
SOLITARY FIBROUS TUMOR Figure 1-91 SOLITARY FIBROUS TUMOR A: An unencapsulated spindle cell tumor is below intact respiratory epithelium. B: A haphazard to storiform spindle cell proliferation with numerous patulous, staghorntype vessels. C: Haphazard architecture with slit-like vessels. D More about this image found in SOLITARY FIBROUS TUMOR A: An unencapsulated spindle cell tumor is below in...
Images
Figure 1-113
Published: 01 June 2025
INFLAMMATORY MYOFIBROBLASTIC TUMOR Figure 1-113 INFLAMMATORY MYOFIBROBLASTIC TUMOR A: A hypocellular proliferation of spindled cells have a vaguely tissue culture-like appearance, including mixed inflammatory cells. B: A prominent intranuclear cytoplasmic inclusion is seen (black arrow More about this image found in INFLAMMATORY MYOFIBROBLASTIC TUMOR A: A hypocellular proliferation of spin...
Images
Figure 3-5
Published: 01 June 2025
ECTOPIC PITUITARY ADENOMA (PitNET) INVOLVING NASOPHARYNX Figure 3-5 ECTOPIC PITUITARY ADENOMA (PitNET) INVOLVING NASOPHARYNX A: Low-magnification view shows the characteristic loose sheet-like arrangement of PitNET tumor cells. B,C: The cells (B) have small amounts of granular oncocytic More about this image found in ECTOPIC PITUITARY ADENOMA (PitNET) INVOLVING NASOPHARYNX A: Low-magnificat...