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Biomedical subjects

H Carty

Publications and source records attributed to H Carty.

At least 91 records · Page 5Linked to original sources

Brittle or battered.

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Bone Diseases, Metabolic↗

Multilocular cystic nephroma: report of three cases.

Multilocular cystic nephroma is an uncommon renal neoplasm which in childhood usually presents as an abdominal mass. The same condition is also described as multilocular kidney and multilocular cystic hamartoma. The clinical presentation, and radiological findings in three cases of multilocular cystic nephroma are described.

Diagnosis, Differential↗

The radiological identification of tumours in children.

The diagnostic imaging procedures now available for the identification of tumours are many. Much of the information gained from one imaging procedure is simply duplicated by another without the addition of new information. This is wasteful of resources. An understanding of the advantages and limitations of each technique is essential for the selection of the best diagnostic pathways. These are briefly described and followed by a brief discussion of the role of radiology in the protocols for the treatment of childhood cancer. No attempt is made to indicate how each specific tumour should be investigated.

Angiography↗

Multiple benign mesenchymomata of the chest wall.

Chest wall mesenchymoma is a rare benign tumour arising from the ribs and occurring in infants, being usually present from birth. The few previously documented cases have been of solitary tumours. A 6-week-old infant presented with two separate lesions demonstrating specific radiological signs, and on isotope scanning with Technetium MDP a high uptake of the agent was demonstrated.

Humans↗

Isotope scanning in the "irritable hip syndrome".

A study of isotope scanning in children with irritable hip syndrome has demonstrated its role as a discriminator between Perthes disease and transient synovitis. Three children with normal radiographs had Perthes changes on scanning and went on to develop X-ray changes. An anatomical and pathological basis for the scan abnormalities is suggested.

Adolescent↗

Segmental dilatation of the ileum.

One of the rarer causes of intestinal obstruction in the neonatal period is segmental dilatation of the ileum. The case histories, radiological and histological details of four patients are presented together with a short review of the literature.

Dilatation, Pathologic↗

Review of spondylolisthesis and spondylolysis in paediatric practice.

Presenting radiographs of 30 children with spondylolisthesis and spondylolysis were reviewed. A 67% incidence of spina bifida occulta was noted, a 13-fold increase of the incidence in the normal population, and a mechanism whereby this may precipitate a spondylolysis is given. The value of the spinous process rotation sign on AP radiographs and facet joint mal-alignment on oblique radiographs in paediatric practice was assessed, and the incidence was 39% and 56% respectively, compared with 92% and 91% in adult practice. Reasons for the reduced incidence are suggested. Oblique radiographs provided further diagnostic information only in the absence of a spondylolisthesis. Follow-up radiographs showed further slip in only five patients. The one constant factor in these five patients was the presence of a spina bifida occulta, indicating the necessity for close observation of such patients with a spondylolisthesis during the adolescent growth spurt. 99Tcm MDP bone scans were performed in three patients, in whom 4 of 5 spondylolyses were shown to have a high uptake. One lesion subsequently became of low uptake as symptoms subsided. Bone scanning in spondylolisthesis needs further evaluation but the finding of increased bone activity suggests a healing process. Spondylolysis is a differential diagnosis to be considered in a positive scan for evaluation of back pain.

Adolescent↗

The radiological evaluation of multiple pin fixation of the femoral head.

Following pin fixation of the femoral neck, extrusion of a pin tip into the joint space cannot be excluded with conventional bi-plane radiography. A per-cervical pin was allowed to extrude from the head of a dried femur. Anteroposterior and lateral photographs and roentgenograms of this preparation, simulating corresponding intra-operative radiology, demonstrated misleadingly that the pin tip was wholly within the head. Careful intra-operative and post-operative screening is considered important to detect unwanted joint penetration and so avoid avascular necrosis and late degenerative change.

Adolescent↗