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Flashcards in CV pathology Deck (34):
1

R Atrium

atrial appendage: broad attachment neck, blunt tip Internal features: - smooth sinus venarum connecting SVC&IVC - crista terminalis with perpendicular pectinate trabeculae - fossa ovalis with distinct limbus - coronary sinus

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Right atrium

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RV

• inlet is tricuspid valve
• multiple small papillary muscles
• coarse trabecular zone
• muscular infundibulum (outlet)
- trabecula septomarginalis
- lack of fibrous continuity between atrioventricular valve (tricuspid) and arterial valve (pulmonary)

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LA

• atrial appendage
- narrow attachment neck
- hooked tip
• internal features
- pectinate muscles confined to atrial appendage
- smooth pulmonary vein component
- irregular flap valve or plaque of foramen ovale

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LV

• inlet is mitral valve with 2 distinct papillary muscles
• fine trabecular zone
• smooth subarterial septum
• fibrous continuity of atrioventricular valve (mitral) and
arterial valve (aortic)

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perimembranous VSD

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muscular (probe) VSD and perimembranous VSD

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complete AVSD (often seen in Down's syndrome)

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TOF

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transposition of the great arteries

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Truncus arteriosus

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Hypoplastic left heart

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Endocardial fibroelastosis

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MI

anterior wall rupture

few days after event

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acute MI

extensive hemorrhage secondary to capillary ischemia + necrosis

loss of myocyte nuclei

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very acute MI

extensive hemorrhage secondary to capillary ischemia and necrosis

loss of myocyte nuclei

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MI

infiltration of PMN

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MI

PMN infiltration

loss of myocyte nuclei

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hemorrhage into an atherosclerotic plaque in a CA

subsequent thrombus of lumen leading to acute MI

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old (white) MI

small ventricular aneurysm with mural thrombus

scarred wall contracts, not able to withstand force --> aneurysm

mural thrombus from acute MI

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old infarct with residual viable myocardium

necrosed tissue appears white (fibrosis)

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Severe aortic stenosis

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AAA (bulge)

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LVH

(small infarct - microscopic)

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White part - old infarctions

thin area could lead to aneurysms

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lung with edema

minimal hemorrhage typical of heart failure

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LVH

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Aortic valve with stenosis

possible vegetations

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vegetation on a valve

bacterial endocarditis

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black arrow = normal valve

red arrow = vegetation

distorted valve, partially destroyed by bacterial colonies and inflammatory cells

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normal valve

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bacterial vegetations

valve distorted, partially destroyed by bacterial colonies and inflammatory cells

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bacterial colonies in endocarditis

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aortic dissection

dissecting aneurysm

green - original channel

red - new channel