25.3 MB (653.3 KB compressed)
3201 x 2763 pixels
27.2 x 23.4 cm ⏐ 10.7 x 9.2 in (300dpi)
DR NAJEEB LAYYOUS / SCIENCE PHOTO LIBRARY DR NAJEEB LAYYOUS / SCIENCE PHOTO LIBRARY
Foetus with an oedema. Ultrasound scan of a foetus with a subcutaneous oedema. This buildup of fluid in the subcutaneous tissue (under the top skin layer) can cause miscarriages and is often a sign of underlying disorders such as hydrops fetalis (a type of prenatal heart failure). Ultrasound scanning is a diagnostic technique that sends high-frequency sound waves into the body via a transducer. The returning echoes are recorded and used to build an image of an internal structure.
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