Germinal matrix hemorrhage

Grade 1 (Patient A)

Grade 2 (Patient A)

Bilateral (Patient A)

The germinal matrix is a highly vasacular structure with poor capillary support and is present at < 35 weeks, vulnerable to ischemic injury.

Grade I - bleeding confined to periventricular area (germinal matrix)

Grade II - intraventricular bleeding (10-50% of ventricular area on sag view)

Grade III - intraventricular bleeding (>50% of ventricular area or distends ventricle)

Grade IV - intraparenchymal echodensity (IPE)

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