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Biomedical subjects

R F Lees

Publications and source records attributed to R F Lees.

17 recordsLinked to original sources
PubMed1978

Gray scale ultrasonography in the evaluation of hydrocephalus and associated abnormalities in infants.

Improved gray scale ultrasonic equipment has made two-dimensional echoencephalography a useful diagnostic tool in the examination of the infant brain for fluid-containing structures such as dilated ventricles and cysts. Eighteen infants have been examined to exclude hydrocephalus and other abnormalities. Ten had significantly dilated lateral ventricles and three of these were shown to have associated intracerebral abnormalities. Another infant was demonstrated to have an arachnoid cyst or subdural hygroma with normal size ventricles. Ten of the 11 abnormalities were confirmed by some other neuroradiologic study.

Brain↗
PubMed1978

False placenta previa: a clinical observation.

A misleading appearance of placenta previa was observed in three sonographic examinations of pregnant women. In these women the fetuses were in a transverse lie and the placentas were implanted on the anterior uterine wall. In these circumstances it appears possible for the lower anterior portion of the uterine wall and the attached portion of the placenta to falsely simulate placenta previa.

Adult↗
PubMed1978

Radionuclide brain scan findings in superior sagittal sinus thrombosis.

Superior sagittal sinus thrombosis is a serious condition requiring early diagnosis. This paper presents our experience with two cases and describes the findings. In one case radionuclide brain imaging was the first study performed. In the other, the diagnosis was made at arteriography with scanning used for follow-up.

Adult↗
PubMed1978

Poorly differentiated lymphocytic lymphoma with ectopic parathormone production: visulization of metastatic calcification by bone scan.

Metastatic soft tissue calcification is known to occur in hypercalcemia and is usually present in the kidneys, stomach and lungs. 1--3 This case presents two unusual features: 1) ectopic parathormone production in association with poorly differentiated lymphocytic lymphoma; and and 2) uptake of 99mTc-pyrophosphate in the liver in the absence of demonstrable abnormality at autopsy. The more usual sites of metastatic calcification also showed uptake of the radionuclide. We will discuss metastatic soft tissue calcification, ectopic parathyroid hormone production, hypercalcemia in malignancy and bone scan agent localization in soft tissues.

Aged↗
PubMed1978

Inflammatory cysts of the pelvic peritoneum.

Three young women with abdominal distension due to pelvic masses were investigated using ultrasound and conventional radiographic techniques. While the latter revealed masses of soft tissue density arising from the pelvis and displacing bowel, the sonogram indicated the morphologic features of thin-walled multiloculated cysts. They were located entirely within the peritoneal cavity and contained serous to serosanguineous fluid. The mesholelial lined walls were infiltrated with chronic inflammatory cells and were adherent to chronically inflamed fallopian tubes. Although these acquired cysts are familiar to pathologists and gynecologists, the literature contains little information about them.

Adolescent↗
PubMed1978

Cerebrospinal fluid ascites.

One new and one previously reported case of cerebrospinal fluid ascites following ventricular-peritoneal shungting are presented. Ultrasonic investigation is now most helpful.

Ascites↗