Flickinger F W, Jackson G L
Radiology. 1978 Dec;129(3):763-4. doi: 10.1148/129.3.763.
An initial liver/spleen scan performed on a patient with blunt abdominal trauma was negative 3 days following the accident. A follow-up scan 7 days later showed definite evidence of splenic rupture, proved surgically. The authors conclude that, in such cases, spleen scans may be negative initially because of delayed splenic ruptures.