Search Results for masse

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...

INFLAMMATORY SINONASAL POLYP Figure 1-6 INFLAMMATORY SINONASAL POLYP The typical appearance is a polypoid mass of sinonasal mucosa with stromal edema and a mild chronic inflammatory cell infiltrate. More about this image found in INFLAMMATORY SINONASAL POLYP The typical appearance is a polypoid mass of ...

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 ...

LEIOMYOMA Figure 1-60 LEIOMYOMA A: A polypoid mass shows a well-circumscribed periphery. B: Intact squamous epithelium overlies a richly vascularized smooth muscle tumor (angioleiomyoma). More about this image found in LEIOMYOMA A: A polypoid mass shows a well-circumscribed periphery. B: Int...

LOBULAR CAPILLARY HEMANGIOMA Figure 1-67 LOBULAR CAPILLARY HEMANGIOMA A: An ulcerated mass is just inside the nasal vestibule. B: An ulcerated polypoid mass is seen on endoscopy within the nasal cavity. (Courtesy of Dr. G. G. Calzada, San Diego, CA) More about this image found in LOBULAR CAPILLARY HEMANGIOMA A: An ulcerated mass is just inside the nasal...

LOBULAR CAPILLARY HEMANGIOMA Figure 1-68 LOBULAR CAPILLARY HEMANGIOMA CT shows a soft tissue density mass (white arrow) in the anterior nose, adjacent to Little area in sagittal (A) and axial (B) views. More about this image found in LOBULAR CAPILLARY HEMANGIOMA CT shows a soft tissue density mass (white ar...

LOBULAR CAPILLARY HEMANGIOMA Figure 1-69 LOBULAR CAPILLARY HEMANGIOMA Polypoid masses on low power. A: Surface ulceration with a collarette of metaplastic squamous epithelium. B: Lobules of capillaries within a fibrous stroma. C: Extensively hyalinized tumor with myxoid change and surface More about this image found in LOBULAR CAPILLARY HEMANGIOMA Polypoid masses on low power. A: Surface ulc...

SCHWANNOMA Figure 1-79 SCHWANNOMA A: Nasoendoscopy shows a polypoid mass protruding into the lumen of the nasal cavity. B: The globular mass is well defined, and easily removed during surgery. More about this image found in SCHWANNOMA A: Nasoendoscopy shows a polypoid mass protruding into the lume...

NEUROFIBROMA Figure 1-86 NEUROFIBROMA A: A coronal CT shows a mass filling the left nasal cavity, with slight bowing of the maxillary sinus wall (white arrow). B: The sagittal view shows a large lesion that expands into the paranasal sinuses and nasopharynx (white arrow). More about this image found in NEUROFIBROMA A: A coronal CT shows a mass filling the left nasal cavity, w...

NEUROGLIAL HETEROTOPIA Figure 1-129 NEUROGLIAL HETEROTOPIA A: There is a subcutaneous mass on the bridge of the nose of this young child. B: Sagittal CT shows a soft tissue mass just below the nasal bone (white arrow). More about this image found in NEUROGLIAL HETEROTOPIA A: There is a subcutaneous mass on the bridge of th...

OLFACTORY NEUROBLASTOMA Figure 1-133 OLFACTORY NEUROBLASTOMA A: Sagittal CT shows a mass at the cribriform plate (white arrow) of the ethmoid sinus, although without any intracranial extension. B: A coronal T2-weighted MRI shows a “dumbbell”-shaped mass, with intracranial and intranasal growth More about this image found in OLFACTORY NEUROBLASTOMA A: Sagittal CT shows a mass at the cribriform plat...

CRANIOPHARYNGIOMA Figure 1-142 CRANIOPHARYNGIOMA Coronal CT shows a low density mass (white arrow) anterior to the vertebral body and adjacent to the nasopharynx. More about this image found in CRANIOPHARYNGIOMA Coronal CT shows a low density mass (white arrow) anteri...

MUCOSAL MELANOMA Figure 1-145 MUCOSAL MELANOMA A: A polypoid mass has expanded the contour of the nose, resulting in a deformity. B: Endoscopic view of a large, polypoid nasal cavity melanoma. (Courtesy of Dr. G. G. Calzada, San Diego, CA) C: Axial T2-weighted MRI identifies a mass filling More about this image found in MUCOSAL MELANOMA A: A polypoid mass has expanded the contour of the nose, ...

MENINGIOMA Figure 1-158 MENINGIOMA A: Axial CT shows a sphenoid sinus mass (white arrow), but no CNS connection. B: Coronal CT of a left nasal cavity mass (white arrow) shows no intracranial extension. More about this image found in MENINGIOMA A: Axial CT shows a sphenoid sinus mass (white arrow), but no C...

NASAL CHONDROMESENCHYMAL HAMARTOMA Figure 1-172 NASAL CHONDROMESENCHYMAL HAMARTOMA A: Low-power shows a polypoid mass containing bands of hyaline cartilage. B: At higher power, there are nodules of mature cartilage in the background of a loose fibromyxoid stroma. More about this image found in NASAL CHONDROMESENCHYMAL HAMARTOMA A: Low-power shows a polypoid mass cont...

NK/T-CELL LYMPHOMA Figure 1-176 NK/T-CELL LYMPHOMA A: CT shows a destructive nasal cavity mass, expanding into the soft tissues (white arrow). (Courtesy of Dr. R. Carlos, Guatemala City, Guatemala) B: This axial CT demonstrates marked anterior nasal destruction with loss of soft tissue (white More about this image found in NK/T-CELL LYMPHOMA A: CT shows a destructive nasal cavity mass, expanding ...

COMBINED NEUROENDOCRINE CARCINOMA Figure 2-30 COMBINED NEUROENDOCRINE CARCINOMA A: Needle core biopsy of a neck mass shows a mixed oropharyngeal nonkeratinizing SCC (left) with tightly defined nests and larger cells with a little more cytoplasm and small cell carcinoma (center and right More about this image found in COMBINED NEUROENDOCRINE CARCINOMA A: Needle core biopsy of a neck mass sho...

COMPOUND ODONTOMA Figure 5-79 COMPOUND ODONTOMA Numerous calcified masses are morphologically similar to small teeth. A thin lucent dental follicle separates the odontoma from the surrounding bone. More about this image found in COMPOUND ODONTOMA Numerous calcified masses are morphologically similar to...

COMPLEX ODONTOMA Figure 5-80 COMPLEX ODONTOMA Radiopaque masses of disorganized dental hard tissues. Thin radiolucent dental follicle surrounds the odontoma. More about this image found in COMPLEX ODONTOMA Radiopaque masses of disorganized dental hard tissues. Th...

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...