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HEAD AND NECK TERATOMA Figure 3-16 HEAD AND NECK TERATOMA Cut section of an oral/oropharyngeal teratoma. More about this image found in HEAD AND NECK TERATOMA Cut section of an oral/oropharyngeal teratoma.

SQUAMOUS CELL CARCINOMA OF THE EXTERNAL AUDITORY CANAL Figure 8-46 SQUAMOUS CELL CARCINOMA OF THE EXTERNAL AUDITORY CANAL A,B: Serial sections show tumor filling the canal as an exophytic gray tumor mass (black arrows) involving the anterior and superior walls of the ear canal. (Courtesy of Dr More about this image found in SQUAMOUS CELL CARCINOMA OF THE EXTERNAL AUDITORY CANAL A,B: Serial section...

CERUMINOUS ADENOCARCINOMA Figure 8-74 CERUMINOUS ADENOCARCINOMA Frozen section of ceruminous adenocarcinoma showing an infiltrative appearance (A), with atypical cells (B). More about this image found in CERUMINOUS ADENOCARCINOMA Frozen section of ceruminous adenocarcinoma show...

OTOSCLEROSIS Figure 8-80 OTOSCLEROSIS A whole mount-type section shows marked ossification with mature woven bone only. (Courtesy of Dr. A. Sandison, London, United Kingdom) More about this image found in OTOSCLEROSIS A whole mount-type section shows marked ossification with mat...

MIDDLE EAR NEUROENDOCRINE TUMOR Figure 8-98 MIDDLE EAR NEUROENDOCRINE TUMOR A: At frozen section, an “infiltrative” appearance is noted, with heavy stromal fibrosis, a finding that can mimic carcinoma. B: Involvement of the ossicular bone is frequent, with the bones encased and also infiltrated More about this image found in MIDDLE EAR NEUROENDOCRINE TUMOR A: At frozen section, an “infiltrative” ap...

SQUAMOUS CELL CARCINOMA Figure 8-45 SQUAMOUS CELL CARCINOMA An external auditory canal specimen serially sectioned (A), with the anatomic structures and specific landmarks outlined (B) to document the exact location of the tumor, and relationship to anatomic structures and margins. (Courtesy More about this image found in SQUAMOUS CELL CARCINOMA An external auditory canal specimen serially secti...

with severe (high grade) dysplasia or squamous cell carcinoma (SCC) in situ, particularly on frozen sections. More about this image found in IMMATURE SQUAMOUS METAPLASIA In immature squamous metaplasia with hyperpla...

-section of a nasopharyngeal angiofibroma shows a firm solid tumor with tan-white to light brown coloration. More about this image found in NASOPHARYNGEAL ANGIOFIBROMA A: Clinical endoscopic image of an exophytic m...

SQUAMOUS CELL CARCINOMA Figure 8-47 SQUAMOUS CELL CARCINOMA A: A gross temporal bone resection with the malleus and tympanic membrane. B: Serial sections show a tumor filling into the external auditory canal. C: The histology whole mount demonstrates a tumor expanding into the external More about this image found in SQUAMOUS CELL CARCINOMA A: A gross temporal bone resection with the malleu...

and individual cells are noted within the squamous epithelium. C: Mucosal melanoma with pigmentation seen in the intraepithelial nests. D: Even with tangential sectioning, surface involvement is easy to see in the intact areas of the tumor. More about this image found in MUCOSAL MELANOMA One of the helpful features in documenting primary diseas...

PRIMORDIA OF ADRENAL GLAND Figure 1-3 PRIMORDIA OF ADRENAL GLAND Schematic cross section of human embryo shows primordia of adrenal glands, which are located lateral to the base of the dorsal mesentery, separated from the gonadal primordium by the adrenal groove. (Fig. 1-3 from Lack EE More about this image found in PRIMORDIA OF ADRENAL GLAND Schematic cross section of human embryo shows p...

FETAL ADRENAL GLAND AND KIDNEY Figure 1-5 FETAL ADRENAL GLAND AND KIDNEY Coronal section of adrenal kidney and adjacent tissue from a fetus at approximately 11 weeks’ gestational age. The developing para-aortic sympathetic plexus has a close relationship with the medial and inferior aspects More about this image found in FETAL ADRENAL GLAND AND KIDNEY Coronal section of adrenal kidney and adjac...