Correlations of scores on the Gifted Evaluation Scale with those on WISC-III and Kaufman Brief Intelligence Test for students referred for Gifted Evaluation.

29 students (M age of 8.0 yr.) who were referred for evaluation were administered the Gifted Evaluation Scale, the Kaufman Brief Intelligence Test, and the WISC-III. Paired t tests comparing the mean GES Quotient with the K-BIT mean IQ and WISC-III Verbal, Performance, and Full Scale IQs yielded no statistically significant differences (range of IQs = 120.6 to 122.9). While the significant correlation of the GES Quotient and WISC-III Performance IQ was .42, r = -.37 for the GES Quotient and WISC-III Verbal IQ. No significant correlation was found between the GES Quotient and the WISC-III Full Scale or K-BIT IQs. The limitations and implications of the study, with regard to the use of the Gifted Evaluation Scale, are discussed.

Apparent motion can be perceived between patterns with dissimilar spatial frequencies.

Many recent models of movement processing in the human visual system predict that the perception of apparent motion requires stimuli that are similar in spatial frequency. The data presented here provide an example of the perception of apparent motion between patterns with nonoverlapping harmonic content. When patterns presented in alternate frames are dissimilar, motion can be perceived as long as the velocity is not too high.

Imaging in the diagnosis of cholecystocutaneous fistulae.

Adhesions formed between the gallbladder and abdominal wall secondary to gallstones and cholecystitis may result in perforation through the abdominal wall. Three cases of such cholecystocutaneous fistulae are presented and the clinical, radiographic and sonographic findings of this unusual entity are reviewed.

Cockayne syndrome.

The diagnosis of Cockayne syndrome was established with the aid of cranial computed tomography (CT) in a child with growth deficiency, mental retardation, and neurologic findings which are typical for this rare childhood disorder. Calcification of basal ganglia and hydrocephalus ex vacuo are neuropathologic characteristics of Cockayne syndrome which may be present on CT as early as 3 years of age.

Hepatobiliary imaging of common bile duct obstruction by a hydronephrotic kidney.

A patient with intermittent right upper quadrant abdominal pain thought to represent acute cholecystitis had common bile duct obstruction due to an enlarged right renal pelvis. A Tc-99m-HIDA scan provided the first clue to the diagnosis. The case reinforces the value of cholescintigraphy in diagnosing pathology outside the biliary system.

Liver scans in evaluation of lesions of the diaphragm.

Three patients had chest radiographs suggesting pathology associated with the right hemidiaphragm. The patients' histories included trauma in one case, recently diagnosed leukemia in a second, and Hodgkin's disease in the third. In all three cases, the Tc-99m-sulfur colloid liver scan provided a noninvasive identification of the nature of the diaphragmatic densities seen on the chest radiographs, thus affecting patient management.

Bone scan-demonstrated urinary tract abnormalities in a patient with Rubinstein-Taybi syndrome.

A 22-month-old boy had a Tc-99m-MDP bone scan. This revealed multiple urinary tract anomalies (bladder distention, ectopic and small right kidney, hypertrophied left kidney, and bilateral hydronephrosis). The defects, fortuitously appreciated by means of the bone images, led to the correct diagnosis of urinary retention and infection as the cause of the child's symptoms. The urinary tract anomalies were associated with the Rubinstein-Taybi syndrome.