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<span class="search-highlight">ACUTE</span> EPIDIDYMO-ORCHITIS  Extensive liquefactive necrosis involves both the...
Published: 01 August 2022
ACUTE EPIDIDYMO-ORCHITIS Figure 11-109 ACUTE EPIDIDYMO-ORCHITIS Extensive liquefactive necrosis involves both the testis and epididymis. More
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 12
Publisher: American Registry of Pathology
Published: 01 August 2022
DOI: 10.55418/9781933477220-09
ISBN-10: 1-933477-22-9
ISBN: 978-1-933477-22-0
... AND MYELOID SARCOMA General and Clinical Features. Autopsy examination of patients with acute and chronic leukemia shows testicular involvement in 64 percent and 22 percent, respectively ( 64 ). The testis is enlarged in 5 to 10 percent of these cases. Testicular swelling is evident during...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 12
Publisher: American Registry of Pathology
Published: 01 August 2022
DOI: 10.55418/9781933477220-11
ISBN-10: 1-933477-22-9
ISBN: 978-1-933477-22-0
..., and necrotic tumors do not show the numerous outlines of necrotic seminiferous tubules that are characteristic of acute and subacute infarcts. Furthermore, many necrotic germ cell tumors have residual seminiferous tubules containing GCNIS, although care must be taken not to mistake the reactive spermatogonia...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 12
Publisher: American Registry of Pathology
Published: 01 August 2022
DOI: 10.55418/9781933477220-01
ISBN-10: 1-933477-22-9
ISBN: 978-1-933477-22-0
... that invaded the adjacent appendix and caused acute appendicitis ( 20 ), cutaneous metastases of choriocarcinoma ( 21 ) and seminoma ( 22 ), and proptosis due to metastases of seminoma and mixed germ cell tumor ( 23 – 25 ). Occasionally, patients present because of paraneoplastic manifestations of their tumor...
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<span class="search-highlight">ACUTE</span> AND CHRONIC EFFUSION  Both neutrophils and lymphocytes are present wi...
Published: 01 June 2022
ACUTE AND CHRONIC EFFUSION Figure 8-2 ACUTE AND CHRONIC EFFUSION Both neutrophils and lymphocytes are present within proteinaceous debris. A cluster of mesothelial cells shows mild reactive atypia. More
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 12
Publisher: American Registry of Pathology
Published: 01 August 2022
DOI: 10.55418/9781933477220-05
ISBN-10: 1-933477-22-9
ISBN: 978-1-933477-22-0
... that examined polymorphisms of genes associated with risk for germ cell tumors in postpubertal patients failed to identify significant linkage in the prepubertal group ( 23 ). Clinical Features. Most patients present with a mass or swelling/enlargement, and less commonly because of pain. Acute presentation...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 12
Publisher: American Registry of Pathology
Published: 01 August 2022
DOI: 10.55418/9781933477220-04
ISBN-10: 1-933477-22-9
ISBN: 978-1-933477-22-0
... sensation in the scrotum, inguinal area, or lower abdomen. Acute pain occurs in approximately 10 percent and may result in delayed diagnosis due to a clinical impression of epididymoorchitis ( 167 ). About 2.5 percent of patients have initial symptoms secondary to metastatic disease ( 152 , 168 ), most...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 12
Publisher: American Registry of Pathology
Published: 01 August 2022
DOI: 10.55418/9781933477220-08
ISBN-10: 1-933477-22-9
ISBN: 978-1-933477-22-0
... to 79 years of age ( 473 – 478 ). All except one (the 16-year-old) occurred in adults, and most were in middle-aged to older men. The patients usually present with slowly growing, painless masses; however, acute pain or tenderness also occur. Ultrasonographic examination shows, in most cases...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 11
Publisher: American Registry of Pathology
Published: 01 June 2022
DOI: 10.55418/9781933477190-8
ISBN-10: 1-933477-19-9
ISBN: 978-1-933477-19-0
... there is no underlying tumor (see Reactive Fibrous Pleuritis below). The incidence of empyema appears to be increasing in both children and young adults ( 1 , 2 ). EMPYEMA Figure 8-1 EMPYEMA The pleural space is filled with hemorrhagic and fibrinopurulent debris. An enclosing pleural cortex is present. ACUTE...
Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 11
Publisher: American Registry of Pathology
Published: 01 June 2022
DOI: 10.55418/9781933477190-3
ISBN-10: 1-933477-19-9
ISBN: 978-1-933477-19-0
... Mesothelioma. The morphologic features of benign spindle cell proliferations include relatively parallel growth of spindle cells, absence of stromal invasion, only surface necrosis where it is often associated with acute inflammation, uniform thickness, hypercellularity at the surface with maturation...
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BILE DUCTULAR PROLIFERATION: <span class="search-highlight">ACUTE</span> VIRAL HEPATITIS  This case of <span class="search-highlight">acute</span> hepa...
Published: 01 January 2022
BILE DUCTULAR PROLIFERATION: ACUTE VIRAL HEPATITIS Figure 7-9 BILE DUCTULAR PROLIFERATION: ACUTE VIRAL HEPATITIS This case of acute hepatitis B virus (HBV) infection showed a ductular reaction that resembles the changes found in biliary obstruction. More
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<span class="search-highlight">ACUTE</span> CELLULAR REJECTION  Endotheliitis involving hepatic venule in <span class="search-highlight">acute</span> c...
Published: 01 January 2022
ACUTE CELLULAR REJECTION Figure 11-11 ACUTE CELLULAR REJECTION Endotheliitis involving hepatic venule in acute cellular rejection. Lymphocytes have burrowed under the endothelial cells, which are discontinuous and show a hobnail appearance. More
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LATE <span class="search-highlight">ACUTE</span> CELLULAR REJECTION  Late <span class="search-highlight">acute</span> cellular rejection is often chara...
Published: 01 January 2022
LATE ACUTE CELLULAR REJECTION Figure 11-14 LATE ACUTE CELLULAR REJECTION Late acute cellular rejection is often characterized by lobular hepatitis, in addition to the typical bile duct changes of early acute cellular rejection. Interface hepatitis is well developed in this example. More
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<span class="search-highlight">ACUTE</span> LIVER FAILURE: MARKED HEPATITIS  There is marked lobular hepatitis an...
Published: 01 January 2022
ACUTE LIVER FAILURE: MARKED HEPATITIS Figure 1-15 ACUTE LIVER FAILURE: MARKED HEPATITIS There is marked lobular hepatitis and extensive necrosis in this case of acute autoimmune hepatitis. More
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<span class="search-highlight">ACUTE</span> LIVER FAILURE: BLAND NECROSIS  There is extensive hemorrhagic necrosi...
Published: 01 January 2022
ACUTE LIVER FAILURE: BLAND NECROSIS Figure 1-16 ACUTE LIVER FAILURE: BLAND NECROSIS There is extensive hemorrhagic necrosis in this case of liver failure from a patient with acute herpes simplex virus (HSV) hepatitis. More
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SMALL DROPLETS OF FAT IN <span class="search-highlight">ACUTE</span> INJURY  The surviving hepatocytes have small...
Published: 01 January 2022
SMALL DROPLETS OF FAT IN ACUTE INJURY Figure 1-37 SMALL DROPLETS OF FAT IN ACUTE INJURY The surviving hepatocytes have small droplets of fat in this case of severe panacinar necrosis secondary to acetaminophen. Necrotic hepatocytes are seen on both edges of this image, with viable hepatocytes in ... More
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<span class="search-highlight">ACUTE</span> ON CHRONIC HEPATITIS  This patient with longstanding chronic hepatiti...
Published: 01 January 2022
ACUTE ON CHRONIC HEPATITIS Figure 1-51 ACUTE ON CHRONIC HEPATITIS This patient with longstanding chronic hepatitis C and cirrhosis had low levels of baseline liver enzyme elevations. An acute flare of liver enzymes led to this biopsy and was eventually diagnosed as acute hepatitis B, superimposed... More
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LOBULAR HEPATITIS: SEVERE  The lobules in this case of clinically <span class="search-highlight">acute</span> hep...
Published: 01 January 2022
LOBULAR HEPATITIS: SEVERE Figure 1-53 LOBULAR HEPATITIS: SEVERE The lobules in this case of clinically acute hepatitis show marked diffuse inflammation. More
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SEVERE PORTAL CHRONIC INFLAMMATION  The patient had <span class="search-highlight">acute</span> hepatitis, most l...
Published: 01 January 2022
SEVERE PORTAL CHRONIC INFLAMMATION Figure 1-60 SEVERE PORTAL CHRONIC INFLAMMATION The patient had acute hepatitis, most likely drug-induced liver injury. In general, severe portal inflammation is most likely to be seen in medium- and larger-sized portal tracts. More
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<span class="search-highlight">ACUTE</span> ON CHRONIC INJURY  This patient had a known history of longstanding c...
Published: 01 January 2022
ACUTE ON CHRONIC INJURY Figure 1-87 ACUTE ON CHRONIC INJURY This patient had a known history of longstanding chronic hepatitis C and presented with abrupt onset of liver enzymes, above baseline. There is too much lobular hepatitis for hepatitis C alone, indicating a new acute injury onset. More