OP04.04: Absent or near absent nasal bone in the 2ndtrimester

Significance of absent or faint kidney sign on bone scan.

Seven men, six suffering from widespread bone metastases of prostatic origin and one with urinary bladder carcinoma, demonstrated minimal or no discernible radioactivity in the kidneys and urinary bladder at the time of bone scanning using 99mTc-stannous polyphosphate. The mechanism behind this scan finding is thought to be rapid and enhanced uptake of the radiopharmaceutical by pathologic bone...

Absent or occult pulmonary artery.

Of 12 patients with angiographically absent pulmonary artery, 11 were investigated surgically. The previously occult pulmonary artery was found in 10 patients, in five of whom a vestige of an intrapericardial artery was present and in five the artery was patent only at the hilus, a gap existing between the main pulmonary artery and the hilar vessel, and no artery was found in one. All patients ...

The Value of Reporting Decreased or Absent Fetal Movements by Mothers in Predicting the Pregnancy Outcome

Rationality: Perfect, Absent, or Bounded?

This paper attempts to put the research on human rationality into proper context by looking at it across disciplines and by identifying the main questions that propelled research in di erent elds. Experimental psychology produced many results that need to be evaluated critically for a complete understanding of the concept. The present paper presents some of these numerous ndings, but mostly foc...

Absent nasal bone at 11-14 weeks of gestation and chromosomal defects.

OBJECTIVE To examine the association between absence of the nasal bone at the 11-14-week ultrasound scan and chromosomal defects. METHODS Ultrasound examination was carried out in 3829 fetuses at 11-14 weeks' gestation immediately before fetal karyotyping. At the scan the fetal crown-rump length (CRL) and nuchal translucency (NT) thickness were measured and the fetal profile was examined for ...