2.Hepatic congestion:(1) Cause: right heart failure(2)Morphology:DAcutehepatic congestion:1) Gross: enlarged, dark red2)LMcthe central vein and sinusoids areengorged with bloodcentral hepatocyte:necrosisperipheralhepatocyte:fatty change
2. Hepatic congestion: (1) Cause: right heart failure (2) Morphology: ①Acute hepatic congestion: 1) Gross: enlarged, dark red 2) LM the central vein and sinusoids are engorged with blood central hepatocyte: necrosis peripheral hepatocyte: fatty change
Chronic hepatic congestion :1)Gross:nutmeglivercut surface shows zones of yellowalternating with zones of red , like nutmeg
② Chronic hepatic congestion : 1) Gross: nutmeg liver cut surface shows zones of yellow alternating with zones of red , like nutmeg
2) LM:The central V , sinusoids :distended with bloodCentralhepatocyte:atrophyornecrosisPeripheral hepatocyte:fatty changeCongestivebandsamong centralv
The central V , sinusoids :distended with blood Central hepatocyte: atrophy or necrosis Peripheral hepatocyte: fatty change Congestive bands among central v 2) LM:
Chronic hepatic congestion
Chronic hepatic congestion