Close
Does Hounsfield value give a clue to the diagnosis?
Yes, this case shows 'sentinel clot' sign on CT, where high density (blood attenuation) fluid in pelvis, suggests a pelvic cause of bleed, and reconfirming possible ruptured ectopic pregnancy.
A correlation NCCT was done in view of acute pain abdomen.
The NCCT shows high density ascites, which in view of acute pain could represent hemoperitoneum or less likely pus.
The density is especially high around the uterus representing the "sentinel clot"- thus most likely hemoperitoneum with a pelvic source.
Also note the "hematocrit" effect with layering in the pelvic free fluid.