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infarction

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Book Chapter
Series: Atlases of Tumor and Non-Tumor Pathology, Series 5
Volume: 17
Published: 15 November 2023
10.55418/9781933477299-ch08
ISBN-10: 1-933477-29-6
ISBN: 978-1-933477-29-9
...-6 VENTRICULAR FREE WALL RUPTURE Histologically, the dissection tract extends from the endocardium to the epicardial surface and is associated with prominent hemorrhage. Near the border of the infarction, tissue basophilia (white asterisk) provides a clue as to the age of the infarct (3 to 5 days...
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PAPILLARY LESION WITH <span class="search-highlight">INFARCTION</span>  A: At low power, an area of papillary duc...
Published: 01 January 2024
PAPILLARY LESION WITH INFARCTION Figure 7-8 PAPILLARY LESION WITH INFARCTION A: At low power, an area of papillary ductal carcinoma in situ (DCIS) is apparent at the right of the field, beside which is a needle biopsy tract with an adjacent area of necrosis. B: At higher power, the “ghosts” of f... More about this image found in PAPILLARY LESION WITH INFARCTION A: At low power, an area of papillary duc...
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MYOCYTE CALCIFICATION  Acute <span class="search-highlight">infarction</span> with calcification of mitochondria ...
Published: 15 November 2023
MYOCYTE CALCIFICATION Figure 4-19 MYOCYTE CALCIFICATION Acute infarction with calcification of mitochondria and other sarcoplasmic organelles shows a speckled appearance in a young adult (left) and focal confluent calcification in an infant (right). More about this image found in MYOCYTE CALCIFICATION Acute infarction with calcification of mitochondria ...
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ACUTE MYOCARDIAL <span class="search-highlight">INFARCTION</span>: LEFT ANTERIOR DESCENDING CORONARY ARTERY TERRI...
Published: 15 November 2023
ACUTE MYOCARDIAL INFARCTION: LEFT ANTERIOR DESCENDING CORONARY ARTERY TERRITORY Figure 7-2 ACUTE MYOCARDIAL INFARCTION: LEFT ANTERIOR DESCENDING CORONARY ARTERY TERRITORY Red-brown mottling of the myocardium (yellow arrows) extends from the anterior and anteroseptal left ventricle at the base (le... More about this image found in ACUTE MYOCARDIAL INFARCTION: LEFT ANTERIOR DESCENDING CORONARY ARTERY TERRI...
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ACUTE MYOCARDIAL <span class="search-highlight">INFARCTION</span>: RIGHT CORONARY ARTERY TERRITORY  Red-brown mot...
Published: 15 November 2023
ACUTE MYOCARDIAL INFARCTION: RIGHT CORONARY ARTERY TERRITORY Figure 7-3 ACUTE MYOCARDIAL INFARCTION: RIGHT CORONARY ARTERY TERRITORY Red-brown mottling (yellow arrows) of the myocardium of the entire right ventricle and the inferior third of the ventricular septum. More about this image found in ACUTE MYOCARDIAL INFARCTION: RIGHT CORONARY ARTERY TERRITORY Red-brown mot...
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ACUTE MYOCARDIAL <span class="search-highlight">INFARCTION</span>: SUBENDOCARDIAL SPARING  Red-brown mottling (ye...
Published: 15 November 2023
ACUTE MYOCARDIAL INFARCTION: SUBENDOCARDIAL SPARING Figure 7-4 ACUTE MYOCARDIAL INFARCTION: SUBENDOCARDIAL SPARING Red-brown mottling (yellow arrows) of the inferior wall, with sparing of the region immediately beneath the endocardium (yellow arrowhead), where diffusion of oxygen can occur direct... More about this image found in ACUTE MYOCARDIAL INFARCTION: SUBENDOCARDIAL SPARING Red-brown mottling (ye...
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ACUTE MYOCARDIAL <span class="search-highlight">INFARCTION</span>: WAVEFRONT PROGRESSION  The necrotic myocardium...
Published: 15 November 2023
ACUTE MYOCARDIAL INFARCTION: WAVEFRONT PROGRESSION Figure 7-5 ACUTE MYOCARDIAL INFARCTION: WAVEFRONT PROGRESSION The necrotic myocardium is yellow-tan in the region of the subendocardium, with a hyperemic border. The viable myocardium (yellow asterisk) is seen subepicardially. More about this image found in ACUTE MYOCARDIAL INFARCTION: WAVEFRONT PROGRESSION The necrotic myocardium...
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SUBACUTE MYOCARDIAL <span class="search-highlight">INFARCTION</span>  The <span class="search-highlight">infarct</span> is gray and somewhat gelatinous...
Published: 15 November 2023
SUBACUTE MYOCARDIAL INFARCTION Figure 7-6 SUBACUTE MYOCARDIAL INFARCTION The infarct is gray and somewhat gelatinous in character; this MI is approximately 14 days old. More about this image found in SUBACUTE MYOCARDIAL INFARCTION The infarct is gray and somewhat gelatinous...
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ACUTE MYOCARDIAL <span class="search-highlight">INFARCTION</span>: WAVY MYOFIBERS  The myocytes are wavy, with ea...
Published: 15 November 2023
ACUTE MYOCARDIAL INFARCTION: WAVY MYOFIBERS Figure 7-8 ACUTE MYOCARDIAL INFARCTION: WAVY MYOFIBERS The myocytes are wavy, with early contraction band change in the upper middle. The space between the myocytes, seen from the underlying interstitial edema, imparts the wavy quality. These changes be... More about this image found in ACUTE MYOCARDIAL INFARCTION: WAVY MYOFIBERS The myocytes are wavy, with ea...
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ACUTE MYOCARDIAL <span class="search-highlight">INFARCTION</span>: CONTRACTION BAND NECROSIS  Contraction band ne...
Published: 15 November 2023
ACUTE MYOCARDIAL INFARCTION: CONTRACTION BAND NECROSIS Figure 7-9 ACUTE MYOCARDIAL INFARCTION: CONTRACTION BAND NECROSIS Contraction band necrosis consists of coarse transverse lines across individual myocytes. This is among the earliest changes of irreversible myocyte injury. This change becomes... More about this image found in ACUTE MYOCARDIAL INFARCTION: CONTRACTION BAND NECROSIS Contraction band ne...
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ACUTE MYOCARDIAL <span class="search-highlight">INFARCTION</span>: COAGULATIVE NECROSIS  Complete nuclear loss an...
Published: 15 November 2023
ACUTE MYOCARDIAL INFARCTION: COAGULATIVE NECROSIS Figure 7-10 ACUTE MYOCARDIAL INFARCTION: COAGULATIVE NECROSIS Complete nuclear loss and hypereosinophilic myocytes are the characteristic features of coagulative necrosis (asterisk). This change is particularly prominent in nonreperfused infarctio... More about this image found in ACUTE MYOCARDIAL INFARCTION: COAGULATIVE NECROSIS Complete nuclear loss an...
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ACUTE MYOCARDIAL <span class="search-highlight">INFARCTION</span>: EARLY NEUTROPHILIC INFILTRATE  Scattered neutr...
Published: 15 November 2023
ACUTE MYOCARDIAL INFARCTION: EARLY NEUTROPHILIC INFILTRATE Figure 7-11 ACUTE MYOCARDIAL INFARCTION: EARLY NEUTROPHILIC INFILTRATE Scattered neutrophils are within the interstitium and small vasculature of the infarcted area. Early neutrophilic infiltrate is seen around day 1. More about this image found in ACUTE MYOCARDIAL INFARCTION: EARLY NEUTROPHILIC INFILTRATE Scattered neutr...
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ACUTE MYOCARDIAL <span class="search-highlight">INFARCTION</span>: PEAK NEUTROPHILIC INFILTRATE  The neutrophilic...
Published: 15 November 2023
ACUTE MYOCARDIAL INFARCTION: PEAK NEUTROPHILIC INFILTRATE Figure 7-12 ACUTE MYOCARDIAL INFARCTION: PEAK NEUTROPHILIC INFILTRATE The neutrophilic infiltrate becomes pronounced on days 2 to 3. More about this image found in ACUTE MYOCARDIAL INFARCTION: PEAK NEUTROPHILIC INFILTRATE The neutrophilic...
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ACUTE MYOCARDIAL <span class="search-highlight">INFARCTION</span>: BASOPHILIC DEBRIS  Neutrophilic karyorrhexis o...
Published: 15 November 2023
ACUTE MYOCARDIAL INFARCTION: BASOPHILIC DEBRIS Figure 7-13 ACUTE MYOCARDIAL INFARCTION: BASOPHILIC DEBRIS Neutrophilic karyorrhexis occurs, leaving prominent basophilic debris on days 3 to 5. More about this image found in ACUTE MYOCARDIAL INFARCTION: BASOPHILIC DEBRIS Neutrophilic karyorrhexis o...
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SUBACUTE MYOCARDIAL <span class="search-highlight">INFARCTION</span>: HISTIOCYTIC INFILTRATE  Histiocytes begin t...
Published: 15 November 2023
SUBACUTE MYOCARDIAL INFARCTION: HISTIOCYTIC INFILTRATE Figure 7-14 SUBACUTE MYOCARDIAL INFARCTION: HISTIOCYTIC INFILTRATE Histiocytes begin to populate the infarct in the latter half of the first week (days 3 to 5). More about this image found in SUBACUTE MYOCARDIAL INFARCTION: HISTIOCYTIC INFILTRATE Histiocytes begin t...
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SUBACUTE MYOCARDIAL <span class="search-highlight">INFARCTION</span>: PHAGOCYTOSIS  Histiocytes act as macrophage...
Published: 15 November 2023
SUBACUTE MYOCARDIAL INFARCTION: PHAGOCYTOSIS Figure 7-15 SUBACUTE MYOCARDIAL INFARCTION: PHAGOCYTOSIS Histiocytes act as macrophages and begin to clear the debris of the dead/dying myocytes and neutrophils. Lipofuscin and hemosiderin are seen within some of the histiocytes. More about this image found in SUBACUTE MYOCARDIAL INFARCTION: PHAGOCYTOSIS Histiocytes act as macrophage...
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SUBACUTE MYOCARDIAL <span class="search-highlight">INFARCTION</span>: GRANULATION TISSUE  Small capillaries and f...
Published: 15 November 2023
SUBACUTE MYOCARDIAL INFARCTION: GRANULATION TISSUE Figure 7-16 SUBACUTE MYOCARDIAL INFARCTION: GRANULATION TISSUE Small capillaries and fibroblasts indicate the healing phase is now occurring. More about this image found in SUBACUTE MYOCARDIAL INFARCTION: GRANULATION TISSUE Small capillaries and f...
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SUBACUTE MYOCARDIAL <span class="search-highlight">INFARCTION</span>: EARLY COLLAGEN  The interstitium becomes pr...
Published: 15 November 2023
SUBACUTE MYOCARDIAL INFARCTION: EARLY COLLAGEN Figure 7-17 SUBACUTE MYOCARDIAL INFARCTION: EARLY COLLAGEN The interstitium becomes progressively more pink with early collagen (scar) formation. More about this image found in SUBACUTE MYOCARDIAL INFARCTION: EARLY COLLAGEN The interstitium becomes pr...
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ACUTE MYOCARDIAL <span class="search-highlight">INFARCTION</span>: REPERFUSION HEMORRHAGE  This example of an acu...
Published: 15 November 2023
ACUTE MYOCARDIAL INFARCTION: REPERFUSION HEMORRHAGE Figure 7-18 ACUTE MYOCARDIAL INFARCTION: REPERFUSION HEMORRHAGE This example of an acute MI had early percutaneous revascularization, causing hemorrhage into the area of dead myocytes. More about this image found in ACUTE MYOCARDIAL INFARCTION: REPERFUSION HEMORRHAGE This example of an acu...
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OLD MYOCARDIAL <span class="search-highlight">INFARCTION</span>: EXTENT  Left: Transmural scarring (yellow arrows...
Published: 15 November 2023
OLD MYOCARDIAL INFARCTION: EXTENT Figure 7-19 OLD MYOCARDIAL INFARCTION: EXTENT Left: Transmural scarring (yellow arrows) is seen in the inferior left ventricle, with wall thinning, in a distribution that is in keeping with a dominant left circumflex coronary artery. Right: Subendocardial scarri... More about this image found in OLD MYOCARDIAL INFARCTION: EXTENT Left: Transmural scarring (yellow arrows...