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Biomedical subjects

R I Macpherson

Publications and source records attributed to R I Macpherson.

At least 19 recordsLinked to original sources
PubMed1990

Intrahepatic encystment of umbilical vein catheter infusate.

Massive hepatomegaly in a 2.1 kg female infant, with an indwelling umbilical vein catheter for total parenteral nutrition, occurred on the 10th day of life. Ultrasound and computed tomography studies revealed a large hepatic cyst filled with the catheter infusate. Percutaneous drainage brought about subsequent recovery. To our knowledge, this complication of umbilical vein catheter use has not been previously reported.

Catheterization, Central Venous↗
PubMed1989

Acampomelic campomelic dysplasia.

Two newborn infants with respiratory distress showed all the clinical and radiologic stigmata of the campomelic dysplasia except campomelia itself.

Abnormalities, Multiple↗
PubMed1988

Idiopathic multicentric osteolysis: report of two new cases and a review of the literature.

Idiopathic multicentric osteolysis is a rare skeletal disorder, usually presenting in early childhood with a clinical picture mimicking juvenile rheumatoid arthritis. Progressive destruction of the carpal and tarsal bones usually occurs and other bones may also be involved. Chronic renal failure is a frequent component of this syndrome. Mental retardation and minor facial abnormalities have been noted in some patients. We report on 2 unrelated, sporadic cases, one with facial anomalies and the other with nephropathy. Our second patient is the first black child to be diagnosed with this disease. The mode of presentation, differential diagnosis, and natural history of this disorder are briefly reviewed.

Child↗
PubMed1987

Effects of sleeping with the bed-head raised and of ranitidine in patients with severe peptic oesophagitis.

Sleeping with the bed-head raised is commonly recommended as treatment for patients with troublesome oesophagitis, but its effect has not been objectively tested. Ranitidine therapy is useful in oesophagitis, but it does not often produce complete relief of symptoms. The effects of each of these treatments alone and in combination have been studied in 71 patients with severe (grade III) peptic oesophagitis. Each treatment improved both symptoms and endoscopic appearances significantly more than placebo did. However, the combination of the two treatments was much better than either alone; the reduction in pain score and the area of ulceration healed were about twice those with either treatment alone. Smoking more than five cigarettes per day or drinking more than 30 g alcohol per day significantly reduced the effectiveness of ranitidine therapy, but age, sex, body weight, or the presence of a hiatus hernia had no detectable effect.

Adult↗
PubMed1987

Serendipitous diagnosis of childhood xanthogranulomatous pyelonephritis in a child with osteomyelitis.

Xanthogranulomatous pyelonephritis (XGP), a rare chronic renal infection in children, usually presents as high fever, pyuria and an abdominal mass. This child with clinical and radiologic evidence of osteomyelitis was not suspected of renal disease until a non-functioning kidney was discovered during a bone scan. The pathologic proven diagnosis of XGP could have been made by correlative imaging using renal ultrasound, a renal scan and a gallium scan. Computed tomography and voiding cystourethrography provided additional information as to the nature and extent of the disease process.

Bone and Bones↗
PubMed1987

Supernumerary kidney: typical and atypical features.

The clinical and radiologic features of three children with accessory renal units are presented. On the basis of the pyelographic and ultrasound findings, the first two clearly had free supernumerary kidneys. The third had a more complex "supernumerary variant," wherein the accessory renal unit formed the isthmus of a horseshoe or "pseudohorseshoe" kidney.

Adolescent↗
PubMed1987

Midline central nervous lipomas in children.

We review the clinical, radiologic, surgical, and pathologic features of 15 children with central nervous system lipomas. Three were situated in the corpus callosum and 12 at the conus medullaris. The intracranial and the intraspinal disorders share several features suggesting that they are related. Both are midline developmental abnormalities associated with dysraphism and both may have extrinsic as well as intrinsic components. Both can occur as occult asymptomatic lesions, particularly early in life, or can be part of extensive dysraphic malformations. Computed tomography is the best way to demonstrate the nature and extent of these lesions prior to treatment.

Adolescent↗
PubMed1986

Posterior urethral valves: an update and review.

Here, in a comprehensive review of an important pediatric problem, the authors discuss the embryology, the clinical and radiological features, the complications and the management of posterior urethral valves.

Adult↗
PubMed1986

"Communicating" bronchopulmonary foregut malformations.

The clinical, radiologic, and pathologic features of four children with uncommon variations of congenital bronchopulmonary foregut malformations are presented. In each case, the malformation included a persistent communication between lung tissue and the gastrointestinal tract. One case, in which an esophageal bronchus was associated with esophageal atresia and tracheoesophageal fistula, is considered extremely unusual. The embryogenesis of these communicating bronchopulmonary foregut malformations is outlined, and the key radiologic features are discussed.

Abnormalities, Multiple↗
PubMed1979

Percutaneous puncture of abdominal cystic masses in children.

A technique of percutaneous puncture and opacification of cystic abdominal masses is outlined, and its diagnostic and therapeutic potential demonstrated in a series of 16 masses in 15 children. It is suggested as an alternative to ultrasound and computed tomography in certain situations.

Child↗
PubMed1978

Mental retardation and osteosclerosis.

We report a girl with profound mental retardation who, at 3 years of age, began to show a progressive osteosclerosis on bone roentgenograms. The bony changes were slightly suggestive of osteopetrosis from which they differed by a number of unusual features.

Adolescent↗
PubMed1978

Skeletal diseases associated with angiomatosis.

Basically, there are two conditions in which angiomatosis is associated with underlying skeletal disease. The first is Maffucci's syndrome in which angiomatosis is associated with multiple enchondromatosis. Two patients with this disease are presented and its clinical and radiologic features are reviewed. The second is "congenital angiectatic hypertrophy" in which angiomatosis is associated with localized hypertrophy of underlying bones, soft tissues and occasionally internal vercera. Four patients with this condition are presented, illustrating the subtypes of closely related diseases within a broad spectrum.

Angiomatosis↗
PubMed1977

Pseudosequestration.

Three children with radiologic findings consistent with right-sided pulmonary sequestration were found at surgery to have a defect in the right hemidiaphragm which permitted a portion of normal liver to herniate into the chest and was associated with an anomalous systemic circulation to the right lower lobe. We refer to this abnormality as "pseudosequestration" and feel it is related to true pulmonary sequestration within the sequestration spectrum.

Blood Vessels↗