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Images
Published: 01 September 2024
CYSTOISOSPORA SPP ORGANISMS Figure 26-37 CYSTOISOSPORA SPP ORGANISMS Involvement of the stomach by Cystoisospora parasites (arrow), as part of disseminated disease in patients with acquired immunodeficiency syndrome (AIDS). More about this image found in CYSTOISOSPORA SPP ORGANISMS Involvement of the stomach by...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 21
Published: 01 December 2024
10.55418/9781933477473-12
ISBN-10: 1-933477-47-4
ISBN: 978-1-933477-47-3
... ). The leading sources of adrenal metastases were breast (53.9 percent), lung (35.6 percent), kidney (24 percent), stomach (21 percent), pancreas (19 percent), ovary (17 percent), and colon (14.4 percent). Endometrial carcinomas rarely give rise to adrenal metastases ( 94 ). In a more recent study of 464...
Images
Published: 01 September 2024
H. PYLORI INFECTION Figure 13-33 H. PYLORI INFECTION Coccoid forms of H. pylori may sometimes be identified in stomach biopsy material (A, arrow; methylene blue stain) and are positive with H. pylori immunohistochemistry (B). More about this image found in H. PYLORI INFECTION Coccoid forms of H. pylori...
Images
Published: 01 September 2024
G. DUODENALIS ORGANISMS Figure 26-20 G. DUODENALIS ORGANISMS G. duodenalis organisms may occasionally be identified in the stomach (arrow), usually in the setting of achlorhydria, and may be mistaken for mucin droplets by the unwary (A: H&E, B: methylene blue stain. Courtesy of Dr. H. Venbrux, Camp Hill, PA) More about this image found in G. DUODENALIS ORGANISMS G. duodenalis or...
Images
Published: 01 September 2024
DISSEMINATED EMERGOMYCES AFRICANUS INFECTION Figure 19-8 DISSEMINATED EMERGOMYCES AFRICANUS INFECTION A: The antral mucosa in the stomach of an AIDS patient shows a pronounced histiocytic infiltrate with focal poor granuloma formation. B: Large numbers of intracellular fungal yeasts reveal focal narrow-neck to tubular budding (arrow), visible on an H&E stain. C: PAS-D highlights the focally budding, small ovoid to round yeasts (arrow). More about this image found in DISSEMINATED EMERGOMYCES AFRICANUS INFECTION A: The antra...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 20
Published: 01 September 2024
10.55418/9781933477435-13
ISBN-10: 1-933477-43-1
ISBN: 978-1-933477-43-5
... In the GIT, typhoid fever primarily involves the lymphoid-rich ileum, appendix, cecum, and right colon, although the stomach, rectum, or any other part of the GIT may be affected. Macroscopically, the bowel wall is usually thickened and the terminal ileum shows prominent raised Peyer patches. The associated...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 20
Published: 01 September 2024
10.55418/9781933477435-19
ISBN-10: 1-933477-43-1
ISBN: 978-1-933477-43-5
...) that are phagocytosed by macrophages and morphologically resemble Histoplasma spp ( fig. 19-8 ) ( 6 ). DISSEMINATED EMERGOMYCES AFRICANUS INFECTION Figure 19-8 DISSEMINATED EMERGOMYCES AFRICANUS INFECTION A: The antral mucosa in the stomach of an AIDS patient shows a pronounced histiocytic...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 20
Published: 01 September 2024
10.55418/9781933477435-26
ISBN-10: 1-933477-43-1
ISBN: 978-1-933477-43-5
... and Alcian blue/PAS-d, are not routinely required for diagnosis, but assist in excluding the differential diagnosis of luminal mucin. G. duodenalis occasionally spreads to the stomach ( fig. 26-20 ). This typically occurs in patients with chronic atrophic gastritis or previous gastric bypass surgery...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 20
Published: 01 September 2024
10.55418/9781933477435-11
ISBN-10: 1-933477-43-1
ISBN: 978-1-933477-43-5
... some of the pathogenetic mechanisms and virulence factors of L. monocytogenes. Listeriosis begins with ingestion of bacteria, which are unaffected by passage through the extremely low pH environment of the stomach. In the small intestine, the organisms invade the epithelium and translocate...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 20
Published: 01 September 2024
10.55418/9781933477435-22
ISBN-10: 1-933477-43-1
ISBN: 978-1-933477-43-5
... shows multiple diffusely distributed, adherent, focally confluent, superficial white pseudomembranes or plaques. (Courtesy of Dr. C. Ziady, Pretoria, South Africa) Other parts of the tubular digestive tract, including the stomach, small bowel, and colorectum are less commonly involved but show similar...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 20
Published: 01 September 2024
10.55418/9781933477435-18
ISBN-10: 1-933477-43-1
ISBN: 978-1-933477-43-5
... cutaneous or mucosal lesion at the inoculation site, which progresses to an ulcer (chancre) and is accompanied by lymphadenopathy Appears on average 3 weeks after exposure and disappears in 4 to 6 weeks Secondary syphilis Dissemination to multiple organ systems, such as the skin, liver, kidney, stomach...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 20
Published: 01 September 2024
10.55418/9781933477435-21
ISBN-10: 1-933477-43-1
ISBN: 978-1-933477-43-5
.... Extrapulmonary involvement is most frequently seen in lymph nodes, liver, and spleen, although the organisms can disseminate to unusual sites, including the gastrointestinal tract (especially esophagus, stomach, and colon) and middle ear ( fig. 21-23 ). Histology characteristically reveals the same extracellular...
Images
Published: 15 November 2023
HETEROTAXY SYNDROME: THORACOABDOMINAL VISCERA Figure 39-48 HETEROTAXY SYNDROME: THORACOABDOMINAL VISCERA A: An in situ photograph at autopsy shows a midline liver with bilateral right lobes, a left-sided gallbladder, and intestinal malrotation with the cecum and appendix (arrow) in the left upper... More about this image found in HETEROTAXY SYNDROME: THORACOABDOMINAL VISCERA A: An in situ photograph at ...
Images
Published: 15 November 2023
DISORDER OF LATERALITY, NONHETEROTAXY TYPE Figure 39-40 DISORDER OF LATERALITY, NONHETEROTAXY TYPE Total mirror-image sidedness is seen. Left: The cardiac apex is rightward, the right-sided lung has two lobes, the left-sided lung has three lobes, the liver is to the left, and the stomach is to t... More about this image found in DISORDER OF LATERALITY, NONHETEROTAXY TYPE Total mirror-image sidedness is...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 17
Published: 15 November 2023
10.55418/9781933477299-ch39
ISBN-10: 1-933477-29-6
ISBN: 978-1-933477-29-9
... tree Extrahepatic biliary atresia 0 5 Gastric sidedness Left-sided stomach 55 65 Right-sided stomach 40 35 Midline stomach 5 0 Pancreatic sidedness Left-sided 55 60 Right-sided 40 40 Midline 5 0 Intestinal arrangement Malrotation 75...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 17
Published: 15 November 2023
10.55418/9781933477299-ch27
ISBN-10: 1-933477-29-6
ISBN: 978-1-933477-29-9
... ). Metastases from carcinomas of the lung, breast, and stomach are common. Lymphoma may spread from the mediastinum or seed the pericardium causing constriction. Of the primary cardiac neoplasms, only angiosarcoma may cause bloody effusions. It commonly involves the right side of the heart and often invades...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 17
Published: 15 November 2023
10.55418/9781933477299-ch30
ISBN-10: 1-933477-29-6
ISBN: 978-1-933477-29-9
.... In a series of 15 gastrointestinal resections for infarction due to PAN, the most common location was the small bowel, followed by the gallbladder, colon, pancreas, appendix, stomach, and esophagus. One third of patients had positive ANA or rheumatoid factor (RF), and only one had documented hepatitis B...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 17
Published: 15 November 2023
10.55418/9781933477299-ch01
ISBN-10: 1-933477-29-6
ISBN: 978-1-933477-29-9
.... Importantly, all abdominal visceral veins drain through the portal circulation, liver, and hepatic veins before entering the inferior vena cava (see fig. 1-41 , right). Thus, all ingested substances that reach the stomach are processed by the liver before entering the systemic circulation. Changes...
Images
Published: 01 August 2023
CARCINOMA METASTATIC TO FALLOPIAN TUBE Figure 16-30 CARCINOMA METASTATIC TO FALLOPIAN TUBE A: Lobular carcinoma of breast. B: Colorectal adenocarcinoma with an intraepithelial and invasive profile. C: Signet ring cell carcinoma of stomach. D: Well-differentiated neuroendocrine carcinoma (carci... More about this image found in CARCINOMA METASTATIC TO FALLOPIAN TUBE A: Lobular carcinoma of breast. B:...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 16
Published: 01 August 2023
10.55418/9781933477282-11
ISBN-10: 1-933477-28-8
ISBN: 978-1-933477-28-2
.... Leiomyosarcomas show some focal to patchy keratin expression, and thus this marker is not useful. When a sarcoma involves the gastrointestinal tract, especially the stomach, a metastatic gastrointestinal stromal tumor (GIST) must be excluded. A useful marker for GIST is DOG1. Some GISTs are c-KIT (CD117...
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