Search Results for epithelial

HYPERKERATOTIC EPITHELIAL PROLIFERATION Figure 4-27 HYPERKERATOTIC EPITHELIAL PROLIFERATION A: Bulky hyperkeratotic epithelial proliferation with some features of verrucous carcinoma, but lacking the church-spire keratoses and focal loss of an intact basement membrane (arrow). B: Blurring More about this image found in HYPERKERATOTIC EPITHELIAL PROLIFERATION A: Bulky hyperkeratotic epithelial...

RESPIRATORY EPITHELIAL ADENOMATOID HAMARTOMA Figure 1-28 RESPIRATORY EPITHELIAL ADENOMATOID HAMARTOMA The lesion is a polypod mass of sinonasal mucosa with numerous downward invaginations of thin, normalappearing surface epithelium. More about this image found in RESPIRATORY EPITHELIAL ADENOMATOID HAMARTOMA The lesion is a polypod mass ...

RESPIRATORY EPITHELIAL ADENOMATOID HAMARTOMA Figure 1-29 RESPIRATORY EPITHELIAL ADENOMATOID HAMARTOMA The lesional nests are made up of normal-appearing ciliated epithelium, surrounded by a hyalinized basement membrane. More about this image found in RESPIRATORY EPITHELIAL ADENOMATOID HAMARTOMA The lesional nests are made u...

ORAL DYSPLASIA Figure 4-19 ORAL DYSPLASIA A: Budding of rete. B: Loss of epithelial cohesion, dyskeratosis, and glassy eosinophilic cytoplasm. C,D: Abnormal epithelial maturation, increased mitotic figures, and loss of basal cell polarity. More about this image found in ORAL DYSPLASIA A: Budding of rete. B: Loss of epithelial cohesion, dysker...

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-...

VERRUCA VULGARIS Figure 4-33 VERRUCA VULGARIS Prominent orthokeratosis and cupping of the epithelial rete. More about this image found in VERRUCA VULGARIS Prominent orthokeratosis and cupping of the epithelial re...

MULTIFOCAL EPITHELIAL HYPERPLASIA Figure 4-35 MULTIFOCAL EPITHELIAL HYPERPLASIA A HIV-positive male with multifocal epithelial hyperplasia of the lips (black arrows) and a concomitant condyloma acuminatum (white arrow). More about this image found in MULTIFOCAL EPITHELIAL HYPERPLASIA A HIV-positive male with multifocal epit...

MULTIFOCAL EPITHELIAL HYPERPLASIA Figure 4-36 MULTIFOCAL EPITHELIAL HYPERPLASIA Characteristic histopathology of multifocal epithelial hyperplasia of the oral cavity with a subtle papillary architecture, marked epithelial acanthosis, and elongated rete. More about this image found in MULTIFOCAL EPITHELIAL HYPERPLASIA Characteristic histopathology of multifo...

MULTIFOCAL EPITHELIAL HYPERPLASIA Figure 4-37 MULTIFOCAL EPITHELIAL HYPERPLASIA Mitosoid bodies (arrows) are commonly seen. More about this image found in MULTIFOCAL EPITHELIAL HYPERPLASIA Mitosoid bodies (arrows) are commonly se...

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...

ODONTOGENIC CARCINOSARCOMA Figure 5-33 ODONTOGENIC CARCINOSARCOMA Malignant epithelial component with hypercellularity and significant cytologic atypia. More about this image found in ODONTOGENIC CARCINOSARCOMA Malignant epithelial component with hypercellul...

SQUAMOUS ODONTOGENIC TUMOR Figure 5-53 SQUAMOUS ODONTOGENIC TUMOR Jigsaw puzzle architecture of the epithelial islands. More about this image found in SQUAMOUS ODONTOGENIC TUMOR Jigsaw puzzle architecture of the epithelial is...

CALCIFYING EPITHELIAL ODONTOGENIC TUMOR Figure 5-56 CALCIFYING EPITHELIAL ODONTOGENIC TUMOR Radiograph shows significant cortical expansion with a mixed driven-snow appearance. More about this image found in CALCIFYING EPITHELIAL ODONTOGENIC TUMOR Radiograph shows significant corti...

CALCIFYING EPITHELIAL ODONTOGENIC TUMOR Figure 5-57 CALCIFYING EPITHELIAL ODONTOGENIC TUMOR Low-power view shows a mixture of epithelial cells, amyloid protein, and calcification. More about this image found in CALCIFYING EPITHELIAL ODONTOGENIC TUMOR Low-power view shows a mixture of ...

CALCIFYING EPITHELIAL ODONTOGENIC TUMOR Figure 5-58 CALCIFYING EPITHELIAL ODONTOGENIC TUMOR Polygonal neoplastic cells with significant pleomorphism. More about this image found in CALCIFYING EPITHELIAL ODONTOGENIC TUMOR Polygonal neoplastic cells with si...

CALCIFYING EPITHELIAL ODONTOGENIC TUMOR Figure 5-59 CALCIFYING EPITHELIAL ODONTOGENIC TUMOR Birefringence of the amyloid protein, ODAM (Congo red stain). More about this image found in CALCIFYING EPITHELIAL ODONTOGENIC TUMOR Birefringence of the amyloid prote...

CALCIFYING EPITHELIAL ODONTOGENIC TUMOR Figure 5-60 CALCIFYING EPITHELIAL ODONTOGENIC TUMOR Some CEOTs show significant, if not predominant, clear cells. More about this image found in CALCIFYING EPITHELIAL ODONTOGENIC TUMOR Some CEOTs show significant, if no...

ADENOMATOID ODONTOGENIC TUMOR Figure 5-64 ADENOMATOID ODONTOGENIC TUMOR Characteristic nodular swirls of epithelial cells are mixed with looser areas with more lamina-like epithelium. More about this image found in ADENOMATOID ODONTOGENIC TUMOR Characteristic nodular swirls of epithelial ...

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...

PRIMORDIAL ODONTOGENIC TUMOR Figure 5-78 PRIMORDIAL ODONTOGENIC TUMOR Cytologically bland epithelial invagination in loose fibromyxomatous ectomesenchymal stroma. More about this image found in PRIMORDIAL ODONTOGENIC TUMOR Cytologically bland epithelial invagination i...