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PAPILLARY SQUAMOUS CELL CARCINOMA More than 50 percent of tumor cells line...
Available to PurchasePublished: 01 June 2025
PAPILLARY SQUAMOUS CELL CARCINOMA Figure 2-14 PAPILLARY SQUAMOUS CELL CARCINOMA More than 50 percent of tumor cells line papillary, exophytic structures. This is common in oropharyngeal SCC as seen in this example of nonkeratinizing papillary SCC. More about this image found in PAPILLARY SQUAMOUS CELL CARCINOMA More than 50 percent of tumor cells line...
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NEUROENDOCRINE TUMOR, GRADE 1 Ki-67 immunohistochemistry shows little posi...
Available to PurchasePublished: 01 June 2025
NEUROENDOCRINE TUMOR, GRADE 1 Figure 6-75 NEUROENDOCRINE TUMOR, GRADE 1 Ki-67 immunohistochemistry shows little positive nuclear staining (less than 5 percent of cells). More about this image found in NEUROENDOCRINE TUMOR, GRADE 1 Ki-67 immunohistochemistry shows little posi...
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DESMOPLASTIC FIBROMA A: At the periphery of the lesion, a sharp interface ...
Available to PurchasePublished: 01 June 2025
although smooth muscle actin (SMA) is positive in 80 percent of cases. More about this image found in DESMOPLASTIC FIBROMA A: At the periphery of the lesion, a sharp interface ...
Book Chapter
Hypopharynx, Larynx, and Trachea
Available to PurchaseSeries: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 22
Published: 01 June 2025
10.55418/9781933477619-6
ISBN: 978-1-933477-61-9
..., which form approximately 70 percent of a circle, with the posterior membranous portion consisting of smooth muscle ( 5 , 7 , 8 ). The trachea includes the area from the lower border of the cricoid cartilage to the carina. Embryologically, it originates from the laryngotracheal groove, which appears...
Book Chapter
Jaw
Available to PurchaseSeries: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 22
Published: 01 June 2025
10.55418/9781933477619-5
ISBN: 978-1-933477-61-9
... epithelium is not expected to be present ( 6 ). In the Kenney review, about half of these structures were found lingual to the posterior mandible, about a fourth buccal to the posterior mandible, 11 percent adjacent to the maxillary tuberosity, and 11 percent along the posterior lateral tongue, often...
Images
MUCOEPIDERMOID CARCINOMA A: There are variably sized cysts with readily re...
Available to PurchasePublished: 01 June 2025
to less than 10 percent of tumor, but at times can be prominent. D: A tumor-associated lymphoid proliferation (TALP) composed of mature lymphocytes with occasional germinal centers (arrow) surrounds the tumor at the advancing edge. More about this image found in MUCOEPIDERMOID CARCINOMA A: There are variably sized cysts with readily re...
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PLASMABLASTIC LYMPHOMA OF THE ORAL CAVITY A: A 32-year-old HIV-positive ma...
Available to PurchasePublished: 01 June 2025
plasmablasts with pleomorphism and atypical mitoses. C: EBV encoding region (EBER) staining is positive in most HIV-associated cases. D: The Ki-67 index is usually more than 80 percent. More about this image found in PLASMABLASTIC LYMPHOMA OF THE ORAL CAVITY A: A 32-year-old HIV-positive ma...
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NK/T-CELL LYMPHOMA A,B: The neoplastic lymphoma cells show an NK-cell phen...
Available to PurchasePublished: 01 June 2025
: A cytotoxic T-cell lineage may be seen also, with granzyme B (D) and TIA1 (E) noted. F: CD30 is coexpressed in up to 50 percent of tumors. More about this image found in NK/T-CELL LYMPHOMA A,B: The neoplastic lymphoma cells show an NK-cell phen...
Book Chapter
Neck
Available to PurchaseSeries: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 22
Published: 01 June 2025
10.55418/9781933477619-7
ISBN: 978-1-933477-61-9
... percent) ( 15 – 17 ) and at the skull base along the vagus nerve (vagal body or nodose ganglion, 10 percent) ( 18 – 20 ). Since the biologic function of the carotid body is presumed to be chemoreception, carotid body tumors and other paragangliomas have been referred to by various other terms...
Book Chapter
Oropharynx
Available to PurchaseSeries: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 22
Published: 01 June 2025
10.55418/9781933477619-2
ISBN: 978-1-933477-61-9
... of head and neck SCC. All patients with oropharyngeal SCC are tested for high-risk HPV via surrogate marker p16 by immunohistochemistry (or by subsequent HPV-specific testing in selected contexts, as discussed below) per guidelines ( 7 , 8 ), using a cutoff of 70 percent nuclear and cytoplasmic staining...
Book Chapter
Oral Cavity
Available to PurchaseSeries: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 22
Published: 01 June 2025
10.55418/9781933477619-4
ISBN: 978-1-933477-61-9
...) is the most common cancer of the oral cavity, accounting for greater than 90 percent of all oral cancers ( 7 ). Although lip, oral cavity, and oropharynx SCC have different etiologies, most cancer statistics currently include both lip and oropharynx when calculating the estimated number of new oral cavity...
Book Chapter
Nasopharynx
Available to PurchaseSeries: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 22
Published: 01 June 2025
10.55418/9781933477619-3
ISBN: 978-1-933477-61-9
.... Given that these lesions primarily appear in the newborn or in early childhood, even small tumors can have significant clinical effects. In the nasopharynx, where 60 percent of the tumors are located ( 13 ), the tumors arise in the lateral pharyngeal wall or posterior pharynx, and are more common...
Book Chapter
Sinonasal Cavity
Available to PurchaseSeries: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 22
Published: 01 June 2025
10.55418/9781933477619-1
ISBN: 978-1-933477-61-9
... of the inciting condition (e.g., allergies). Clinical Features. Inflammatory polyps are rare in childhood, with the exception of children with cystic fibrosis, where they are seen in up to 20 percent of patients ( 5 , 6 ). Uncommonly, inflammatory polyps are the presenting symptom. Accordingly, this condition...
Book Chapter
Ear and Temporal Bone
Available to PurchaseSeries: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 22
Published: 01 June 2025
10.55418/9781933477619-8
ISBN: 978-1-933477-61-9
... auditory canal. Type II lesions contain ectodermal components of the first branchial cleft and mesodermal components of the first and second branchial arches, and are more medially and inferiorly located. First branchial cleft anomalies comprise about 15 to 20 percent of all branchial cleft anomalies ( 22...
Images
PHEOCHROMOCYTOMA: KI-67 LABELING The Ki-67 labeling index is 12.7 percent ...
Available to Purchase
in Pheochromocytoma and Adrenal Medullary Hyperplasia
> Tumors of the Adrenal Glands and Extra-Adrenal Paraganglia
Published: 01 December 2024
PHEOCHROMOCYTOMA: KI-67 LABELING Figure 8-42 PHEOCHROMOCYTOMA: KI-67 LABELING The Ki-67 labeling index is 12.7 percent as determined by an automated image analysis algorithm. More about this image found in PHEOCHROMOCYTOMA: KI-67 LABELING The Ki-67 labeling index is 12.7 percent ...
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DISTRIBUTION OF NEUROBLASTOMA BY SEX AND STAGE OVER AGE Nearly 90 percent ...
Available to Purchase
in Neuroblastoma, Ganglioneuroblastoma, and Ganglioneuroma
> Tumors of the Adrenal Glands and Extra-Adrenal Paraganglia
Published: 01 December 2024
DISTRIBUTION OF NEUROBLASTOMA BY SEX AND STAGE OVER AGE Figure 11-1 DISTRIBUTION OF NEUROBLASTOMA BY SEX AND STAGE OVER AGE Nearly 90 percent of patients are below 5 years of age at diagnosis. The left side of each pair of columns represents male patients and the right side of each pair More about this image found in DISTRIBUTION OF NEUROBLASTOMA BY SEX AND STAGE OVER AGE Nearly 90 percent ...
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GANGLIONEUROBLASTOMA INTERMIXED This tumor had more than 50 percent of sch...
Available to Purchase
in Neuroblastoma, Ganglioneuroblastoma, and Ganglioneuroma
> Tumors of the Adrenal Glands and Extra-Adrenal Paraganglia
Published: 01 December 2024
GANGLIONEUROBLASTOMA INTERMIXED Figure 11-19 GANGLIONEUROBLASTOMA INTERMIXED This tumor had more than 50 percent of schwannian stroma and may be called stroma rich. A: There is a mixture of mature and immature elements with schwannian stroma to the lower left and upper right. B: Focus More about this image found in GANGLIONEUROBLASTOMA INTERMIXED This tumor had more than 50 percent of sch...
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DIFFERENTIATING NEUROBLASTOMA This tumor shows areas of ganglion cell diff...
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in Neuroblastoma, Ganglioneuroblastoma, and Ganglioneuroma
> Tumors of the Adrenal Glands and Extra-Adrenal Paraganglia
Published: 01 December 2024
there is more than 5 percent ganglion cell differentiation and less than 50 percent schwannian stroma, tumors are classified as differentiating NB. More about this image found in DIFFERENTIATING NEUROBLASTOMA This tumor shows areas of ganglion cell diff...
Book Chapter
Congenital Disorders of the Adrenal Gland
Available to PurchaseSeries: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 21
Published: 01 December 2024
10.55418/9781933477473-02
ISBN-10: 1-933477-47-4
ISBN: 978-1-933477-47-3
... percent of cases, and in half of these (16 percent), they consisted of both cortex and medulla ( 14 ). A medullary component is usually absent in sites distant from the adrenal gland ( 7 ) and usually only cortex is present ( fig. 2-4 ). HETEROTOPIC ADRENAL CORTICAL TISSUE Figure 2-4 HETEROTOPIC ADRENAL...
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PEDIATRIC ADRENAL CORTICAL TUMOR: BENIGN The tumor diffusely expressed SF1...
Available to PurchasePublished: 01 December 2024
PEDIATRIC ADRENAL CORTICAL TUMOR: BENIGN Figure 6-43 PEDIATRIC ADRENAL CORTICAL TUMOR: BENIGN The tumor diffusely expressed SF1 (A). Ki-67 index (B) was 5 percent, whereas p53 was expressed in rare nuclei (C). (Same case as figs. 6-40 and 6-41 .) More about this image found in PEDIATRIC ADRENAL CORTICAL TUMOR: BENIGN The tumor diffusely expressed SF1...
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