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reactive
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Images
Published: 01 March 2023
REACTIVE DUCTAL EPITHELIUM Figure 7-37 REACTIVE DUCTAL EPITHELIUM Reactive ductal epithelium from a patient with chronic pancreatitis (Papanicolaou stain). More about this image found in REACTIVE DUCTAL EPITHELIUM Reactive ductal epithelium from a patient with ...
Images
Published: 01 March 2023
CHRONIC PANCREATITIS Figure 7-48 CHRONIC PANCREATITIS Reactive duct with non-neoplastic epithelium. The epithelium is uniform without atypia. More about this image found in CHRONIC PANCREATITIS Reactive duct with non-neoplastic epithelium. The epi...
Images
Published: 01 March 2023
AUTOIMMUNE PANCREATITIS-ASSOCIATED REACTIVE FIBROINFLAMMATORY PSEUDOTUMOR Figure 15-18 AUTOIMMUNE PANCREATITIS-ASSOCIATED REACTIVE FIBROINFLAMMATORY PSEUDOTUMOR The extensive storiform fibrosis in this case formed a mass. Note the lymphocytic venulitis (top left, arrow). More about this image found in AUTOIMMUNE PANCREATITIS-ASSOCIATED REACTIVE FIBROINFLAMMATORY PSEUDOTUMOR ...
Images
Published: 01 March 2023
AUTOIMMUNE PANCREATITIS Figure 15-31 AUTOIMMUNE PANCREATITIS Reactive ductal cells are cohesive, with limited nuclear size variation (Diff Quik stain). More about this image found in AUTOIMMUNE PANCREATITIS Reactive ductal cells are cohesive, with limited n...
Images
Published: 01 March 2023
CHRONIC PANCREATITIS Figure 15-30 CHRONIC PANCREATITIS Cytologically, there is fibrotic acinar tissue (left) and reactive ductal epithelium (right) (left, right: Papanicolaou stain). More about this image found in CHRONIC PANCREATITIS Cytologically, there is fibrotic acinar tissue (left)...
Images
Published: 01 March 2023
GASTRIC EPITHELIUM Figure 7-36 GASTRIC EPITHELIUM Apical mucinous cytoplasm (A), even distribution of cells (B), and reactive atypia in the setting of inflammation (C). (A, H&E; B, Papanicolaou; C, H&E.) More about this image found in GASTRIC EPITHELIUM Apical mucinous cytoplasm (A), even distribution of cel...
Images
Published: 01 March 2023
MICROCYSTIC SEROUS CYSTADENOMA Figure 4-14 MICROCYSTIC SEROUS CYSTADENOMA A: The epithelium shows oncocytic changes, with granular eosinophilic cytoplasm. B: When the cytoplasm is abundant, a hepatoid appearance results. C: The nuclei are uniform, round, and hyperchromatic. D: A dense network ... More about this image found in MICROCYSTIC SEROUS CYSTADENOMA A: The epithelium shows oncocytic changes, ...
Images
Published: 01 February 2023
MICROGLANDULAR HYPERPLASIA Figure 3-84 MICROGLANDULAR HYPERPLASIA A: This reactive proliferation is seen in the superficial mucosa, and often involves endocervical polyps, as in this example. B: It features a crowded and confluent population of glands lined by bland endocervical mucinous epithel... More about this image found in MICROGLANDULAR HYPERPLASIA A: This reactive proliferation is seen in the s...
Images
Published: 01 February 2023
MICROGLANDULAR HYPERPLASIA Figure 3-84 MICROGLANDULAR HYPERPLASIA A: This reactive proliferation is seen in the superficial mucosa, and often involves endocervical polyps, as in this example. B: It features a crowded and confluent population of glands lined by bland endocervical mucinous epithel... More about this image found in MICROGLANDULAR HYPERPLASIA A: This reactive proliferation is seen in the s...
Book Chapter
Book: Tumors of the Pancreas
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 15
Published: 01 March 2023
DOI:
10.55418/9781933477275-15
ISBN-10: 1-933477-27-X
ISBN: 978-1-933477-27-5
...) Autoimmune pancreatitis (including reactive fibroinflammatory pseudotumor) Solid Ductal adenocarcinoma (C,G); sarcoma (M) Heterotopic pancreas Solid Extrapancreatic neoplasm (C,G,M) Heterotopic spleen Solid Pancreatic neuroendocrine neoplasm (C,G) Hamartoma Solid and cystic Ductal...
Images
Published: 01 February 2023
TUBO-ENDOMETRIOID METAPLASIA Figure 3-86 TUBO-ENDOMETRIOID METAPLASIA Left: Simple, round to tubular glands are seen in the endocervical mucosa; the stroma can appear reactive and simulate desmoplastic reaction (upper right aspect). Right: The glands are lined by columnar epithelium with endomet... More about this image found in TUBO-ENDOMETRIOID METAPLASIA Left: Simple, round to tubular glands are see...
Images
Published: 01 February 2023
DIFFUSE LAMINAR ENDOCERVICAL HYPERPLASIA Figure 3-82 DIFFUSE LAMINAR ENDOCERVICAL HYPERPLASIA Left: The superficial cervical stroma contains a band-like proliferation of closely packed benign endocervical glands. Right: The glands are lined by banal endocervical-type epithelium. Inflammation and... More about this image found in DIFFUSE LAMINAR ENDOCERVICAL HYPERPLASIA Left: The superficial cervical st...
Images
Published: 01 February 2023
GRANULAR CELL TUMOR Figure 5-60 GRANULAR CELL TUMOR A: These tumors typically have nodular growth and a tan/yellow cut surface. B,C: Tumor cells are polygonal, with abundant granular pale (B) to eosinophilic (C) cytoplasm, variably sized round nuclei with open chromatin, and noticeable nucleoli ... More about this image found in GRANULAR CELL TUMOR A: These tumors typically have nodular growth and a ta...
Book Chapter
Book: Tumors of the Pancreas
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 15
Published: 01 March 2023
DOI:
10.55418/9781933477275-07
ISBN-10: 1-933477-27-X
ISBN: 978-1-933477-27-5
... appearance of well-differentiated adenocarcinoma (top) is juxtaposed with duoden al contaminants (bottom) (Papanicolaou stain). GASTRIC EPITHELIUM Figure 7-36 GASTRIC EPITHELIUM Apical mucinous cytoplasm (A), even distribution of cells (B), and reactive atypia in the setting of inflammation (C). (A, H...
Book Chapter
Book: Tumors of the Pancreas
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 15
Published: 01 March 2023
DOI:
10.55418/9781933477275-13
ISBN-10: 1-933477-27-X
ISBN: 978-1-933477-27-5
.... The differential diagnosis includes small round cell tumors. Inadvertent sampling of reactive ductal cells by EUS-FNA or duct brushing can lead to concern for adenocarcinoma. Acute myeloid leukemia usually occurs with myeloid sarcoma, but there may be a delay (median, 5 months) in its appearance ( 161 ). Systemic...
Book Chapter
Book: Tumors of the Pancreas
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 15
Published: 01 March 2023
DOI:
10.55418/9781933477275-02
ISBN-10: 1-933477-27-X
ISBN: 978-1-933477-27-5
... neoplasms (metastases to the pancreas) IV. Non-neoplastic tumor-like changes of the exocrine pancreas A. Chronic pancreatitis 1. Alcoholic chronic pancreatitis 2. Autoimmune pancreatitis and reactive fibroinflammatory pseudotumor 3. Obstructive types of chronic pancreatitis 4...
Book Chapter
Book: Tumors of the Pancreas
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 15
Published: 01 March 2023
DOI:
10.55418/9781933477275-06
ISBN-10: 1-933477-27-X
ISBN: 978-1-933477-27-5
... IPMN subtyping ( fig. 6-36 ) ( 114 ). Based on the reactivity of the antibodies MUC1 (recognizing the core MUC protein), MUC2, MUC5AC, and MUC6, three MUC profiles correlate with the different morphologic directions of differentiation discussed earlier ( Table 6-1 ) ( 115 ). Intestinal-type IPMNs...
Book Chapter
Book: Tumors of the Pancreas
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 15
Published: 01 March 2023
DOI:
10.55418/9781933477275-14
ISBN-10: 1-933477-27-X
ISBN: 978-1-933477-27-5
... ductal adenocarcinomas ( 49 ). PEComas are composed of bland, glycogen-rich, clear and epithelioid cells similar to renal cell carcinoma. Immunoreactivity of the neoplastic cells for HMB-45 and smooth muscle actin supports the diagnosis of a PEComa, whereas the absence of such reactivity as well...
Book Chapter
Book: Tumors of the Pancreas
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 15
Published: 01 March 2023
DOI:
10.55418/9781933477275-10
ISBN-10: 1-933477-27-X
ISBN: 978-1-933477-27-5
... to CEA ( fig. 10-9B ). They are the only components of pancreatoblastomas to express epithelial membrane antigen ( fig. 10-9C ) ( 19 , 61 ). Since the nuclei of the cells in the squamoid regions often contain biotin, these cells display nonspecific reactivity for all immunohistochemical stains ( fig. 10...
Book Chapter
Book: Tumors of the Pancreas
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 15
Published: 01 March 2023
DOI:
10.55418/9781933477275-04
ISBN-10: 1-933477-27-X
ISBN: 978-1-933477-27-5
... there is hemorrhage within the cysts and reactive changes in the surrounding stroma. SEROUS MICROCYSTIC CYSTADENOMA Figure 4-24 SEROUS MICROCYSTIC CYSTADENOMA The cells of the neoplasm appear larger on air-dried smears but maintain their polygonal shape, with central nuclei and nonmucinous cytoplasm (direct smear...
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