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Figure 7-2

ENTEROVIRUS MYOCARDITIS A scant lymphocyte infiltrate and myocyte injury (...

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in Heart > Pathology of Non-Helminth Infectious Diseases
Published: 01 September 2024
ENTEROVIRUS MYOCARDITIS Figure 7-2 ENTEROVIRUS MYOCARDITIS A scant lymphocyte infiltrate and myocyte injury (A) are seen. Lymphocytic infiltration can be patchy (C), making detection on endomyocardial biopsy difficult. Confirmatory enterovirus immunohistochemistry (B) demonstrates red More about this image found in ENTEROVIRUS MYOCARDITIS A scant lymphocyte infiltrate and myocyte injury (...
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Figure 7-3

INFLUENZA B VIRUS MYOCARDITIS At low (A) and high power (B), a discrete pe...

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in Heart > Pathology of Non-Helminth Infectious Diseases
Published: 01 September 2024
INFLUENZA B VIRUS MYOCARDITIS Figure 7-3 INFLUENZA B VIRUS MYOCARDITIS At low (A) and high power (B), a discrete perivascular lymphocyte infiltrate and associated myocyte injury are seen. Immunohistochemical staining did not demonstrate influenza B virus in the myocardium, although More about this image found in INFLUENZA B VIRUS MYOCARDITIS At low (A) and high power (B), a discrete pe...
Book Chapter

Heart

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Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 20
Published: 01 September 2024
10.55418/9781933477435-07
ISBN-10: 1-933477-43-1
ISBN: 978-1-933477-43-5
..., or replacement Pathologic Criteria for: First biopsy Active/acute >14 lymphocytes/mm2 (predominance of T lymphocytes) with myocyte damage/necrosis Borderline Milder inflammation with no evidence of myocyte damage (repeat biopsy may be indicated) Negative for myocarditis...
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Book Chapter

Heart

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Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 20
Published: 01 September 2024
10.55418/9781933477435-29
ISBN-10: 1-933477-43-1
ISBN: 978-1-933477-43-5
..., myocyte necrosis, an abundant and predominantly mononuclear inflammatory infiltrate, and scattered clusters of amastigotes ( 8 ). Pericardial effusion is frequent. Trypanosoma amastigotes are differentiated histologically from other parasitic organisms and fungal yeasts by the presence...
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Book Chapter

Systemic Infections

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Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 20
Published: 01 September 2024
10.55418/9781933477435-14
ISBN-10: 1-933477-43-1
ISBN: 978-1-933477-43-5
... lymphocytic infiltrates without associated myocyte necrosis. The central nervous system demonstrates a meningoencephalitis with glial nodules scattered in the parenchyma, perivascular cuffing by lymphocytes and macrophages; associated small hemorrhages and microinfarcts occur in the central nervous system...
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Book Chapter

Respiratory Tract

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Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 20
Published: 01 September 2024
10.55418/9781933477435-04
ISBN-10: 1-933477-43-1
ISBN: 978-1-933477-43-5
... myocyte necrosis) and encephalitis (perivascular inflammation with scattered glial nodules) are rare. Importantly, the virus cannot be detected in nonrespiratory locations using immunohistochemistry. Other potential emerging influenza pandemic threats include animal strains from several avian and porcine...
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Book Chapter

Sexually Transmitted and Urogenital Infections

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Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 20
Published: 01 September 2024
10.55418/9781933477435-09
ISBN-10: 1-933477-43-1
ISBN: 978-1-933477-43-5
..., such as prostate cancer and myeloma, although lung adenocarcinoma remains etiologically linked to HIV. Skeletal myositis and myocarditis (with myocyte destruction) are also no longer thought to be directly induced by HIV. There is debate over the pathogenesis of the evident high incidence of cardiovascular disease...
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Gastrointestinal Tract

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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
..., liver, and bone marrow. In advanced cases, there may also be brain ring hemorrhages and microthrombi, as well as degeneration of cardiac and skeletal muscle myocytes. In the GIT, the histologic differential diagnosis of typhoid fever includes Whipple disease, mycobacterial (especially Mycobacterium...
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Figure 20-3

HYPERTENSIVE HEART DISEASE: MYOCYTE HYPERTROPHY Myocyte hypertrophy in hyp...

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in Hypertensive Heart Disease > Disorders of the Heart and Blood Vessels
Published: 15 November 2023
HYPERTENSIVE HEART DISEASE: MYOCYTE HYPERTROPHY Figure 20-3 HYPERTENSIVE HEART DISEASE: MYOCYTE HYPERTROPHY Myocyte hypertrophy in hypertensive heart disease. More about this image found in HYPERTENSIVE HEART DISEASE: MYOCYTE HYPERTROPHY Myocyte hypertrophy in hyp...
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Figure 3-4

MYOCYTE ORIENTATION A: In the gross specimen, clusters of mid-mural myocyt...

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in Cardiovascular Histology > Disorders of the Heart and Blood Vessels
Published: 15 November 2023
MYOCYTE ORIENTATION Figure 3-4 MYOCYTE ORIENTATION A: In the gross specimen, clusters of mid-mural myocytes are arranged longitudinally, in contrast to subepicardial and subendocardial myocardium (the three regions are indicated with double-headed arrows). B–D: High-power views (taken More about this image found in MYOCYTE ORIENTATION A: In the gross specimen, clusters of mid-mural myocyt...
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Figure 3-5

MYOCYTE DISARRAY The myocytes are oriented in a haphazard fashion.

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in Cardiovascular Histology > Disorders of the Heart and Blood Vessels
Published: 15 November 2023
MYOCYTE DISARRAY Figure 3-5 MYOCYTE DISARRAY The myocytes are oriented in a haphazard fashion. More about this image found in MYOCYTE DISARRAY The myocytes are oriented in a haphazard fashion.
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Figure 14-9

DILATED CARDIOMYOPATHY: MYOCYTE HYPERTROPHY The myocytes typically display...

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in Dilated Cardiomyopathy > Disorders of the Heart and Blood Vessels
Published: 15 November 2023
DILATED CARDIOMYOPATHY: MYOCYTE HYPERTROPHY Figure 14-9 DILATED CARDIOMYOPATHY: MYOCYTE HYPERTROPHY The myocytes typically display karyomegaly and are occasionally increased in diameter. More about this image found in DILATED CARDIOMYOPATHY: MYOCYTE HYPERTROPHY The myocytes typically display...
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Figure 15-13

HYPERTROPHIC CARDIOMYOPATHY: MYOCYTE DISARRAY The cardiac myocytes are arr...

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in Hypertrophic Cardiomyopathy > Disorders of the Heart and Blood Vessels
Published: 15 November 2023
HYPERTROPHIC CARDIOMYOPATHY: MYOCYTE DISARRAY Figure 15-13 HYPERTROPHIC CARDIOMYOPATHY: MYOCYTE DISARRAY The cardiac myocytes are arranged in a nonparallel arrangement. More about this image found in HYPERTROPHIC CARDIOMYOPATHY: MYOCYTE DISARRAY The cardiac myocytes are arr...
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Figure 15-14

MYOCYTE DISARRAY: TYPES Left: Storiform-type disarray, with myocytes vague...

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in Hypertrophic Cardiomyopathy > Disorders of the Heart and Blood Vessels
Published: 15 November 2023
MYOCYTE DISARRAY: TYPES Figure 15-14 MYOCYTE DISARRAY: TYPES Left: Storiform-type disarray, with myocytes vaguely encircling one another, usually centered around collagen. Right: Herringbone-type disarray, with myocytes arranged in nonparallel intersecting fascicles. More about this image found in MYOCYTE DISARRAY: TYPES Left: Storiform-type disarray, with myocytes vague...
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Figure 22-23

GIANT CELL MYOCARDITIS: EXTENSIVE MYOCYTE INJURY There is extensive myocyt...

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in Myocarditis > Disorders of the Heart and Blood Vessels
Published: 15 November 2023
GIANT CELL MYOCARDITIS: EXTENSIVE MYOCYTE INJURY Figure 22-23 GIANT CELL MYOCARDITIS: EXTENSIVE MYOCYTE INJURY There is extensive myocyte injury in association with the florid inflammatory infiltrate. More about this image found in GIANT CELL MYOCARDITIS: EXTENSIVE MYOCYTE INJURY There is extensive myocyt...
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Figure 24-2

MYOCYTE INJURY Inflammation envelopes the myocytes, with associated scallo...

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in Cardiac Transplantation > Disorders of the Heart and Blood Vessels
Published: 15 November 2023
MYOCYTE INJURY Figure 24-2 MYOCYTE INJURY Inflammation envelopes the myocytes, with associated scalloping of the sarcoplasmic membranes (black arrows). Fragments of myocytes are seen within the infiltrate. More about this image found in MYOCYTE INJURY Inflammation envelopes the myocytes, with associated scallo...
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Figure 45-2

HAMARTOMA OF MATURE CARDIAC MYOCYTES Enlarged, disorganized myocytes with ...

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in Other Cardiac Hamartomas > Disorders of the Heart and Blood Vessels
Published: 15 November 2023
HAMARTOMA OF MATURE CARDIAC MYOCYTES Figure 45-2 HAMARTOMA OF MATURE CARDIAC MYOCYTES Enlarged, disorganized myocytes with interspersed collagen form the bulk of the tumor as seen with hematoxylin and eosin (H&E) stain (left) and Masson trichrome stain (right). More about this image found in HAMARTOMA OF MATURE CARDIAC MYOCYTES Enlarged, disorganized myocytes with ...
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Figure 3-2

MYOCYTE DROP-OUT ARTIFACT This is not due to ischemic, infectious, or toxi...

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in Cardiovascular Histology > Disorders of the Heart and Blood Vessels
Published: 15 November 2023
MYOCYTE DROP-OUT ARTIFACT Figure 3-2 MYOCYTE DROP-OUT ARTIFACT This is not due to ischemic, infectious, or toxic injury as there is no leukocytic response. More about this image found in MYOCYTE DROP-OUT ARTIFACT This is not due to ischemic, infectious, or toxi...
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Figure 3-6

MYOCYTE DECOMPOSITION Cells separate from one another at their intercalate...

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in Cardiovascular Histology > Disorders of the Heart and Blood Vessels
Published: 15 November 2023
MYOCYTE DECOMPOSITION Figure 3-6 MYOCYTE DECOMPOSITION Cells separate from one another at their intercalated disks. Nuclei also begin to fade or break apart. More about this image found in MYOCYTE DECOMPOSITION Cells separate from one another at their intercalate...
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Figure 4-7

MYOCYTE HYPERTROPHY: TYPES A,B: Pressure hypertrophy, with enlarged nuclei...

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in Cardiac Response to Stress and Injury > Disorders of the Heart and Blood Vessels
Published: 15 November 2023
MYOCYTE HYPERTROPHY: TYPES Figure 4-7 MYOCYTE HYPERTROPHY: TYPES A,B: Pressure hypertrophy, with enlarged nuclei and increased cell diameters in severe aortic stenosis. Sarcomeric bands coursing in front of nuclei in longitudinal section (A) account for the irregular nuclear shapes seen in cross More about this image found in MYOCYTE HYPERTROPHY: TYPES A,B: Pressure hypertrophy, with enlarged nuclei...