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Biomedical subjects

T Pirnar

Publications and source records attributed to T Pirnar.

At least 19 recordsLinked to original sources
PubMed1992

Magnetic resonance imaging and computed tomography in the detection and localization of intraocular foreign bodies.

In this experimental study, various foreign bodies were inserted into fresh bovine eyes, in different localizations. Twenty-one magnetic and non-magnetic foreign bodies, dimensions of which varied from 1.5 x 1.5 x 2 mm to 3.5 x 6 x 7 mm, were tried to detect by computed tomography (CT) and magnetic resonance imaging (MRI) scanning. In addition, further dissections were applied to check the ocular damage attributable to movement of the foreign bodies. Ferromagnetic foreign bodies have been shown to move in the eye and the risk of torsional forces being applied to the ferromagnetic foreign body seemed to cause intraocular complications during MRI scanning. All of the foreign bodies that were implanted in bovine eyes were recognized on CT scanning, except intraocular lenses. As a general rule, metallic foreign bodies produced beam-hardening artifacts, but these artifacts did not cause any problem in detecting the localizations of foreign bodies.

Animals↗
PubMed1992

Spondylometaphyseal dysplasia, type VII.

Spondylometaphyseal dysplasia was first described by Kozlowski et al. in 1967 as a new dysplastic bone disease, characterized by metaphyseal dysplasia associated with generalized platyspondyly in the vertebral column [1]. Kozlowski et al. have pointed out the autosomal dominant transmission of this disorder at that time. However, later reports showed that the manner of genetic transmission and the degree of the manifestation of the radiological findings could be variable and accordingly seven types of spondylometaphyseal dysplasia were described [2]. In this article, three cases displaying one of the rare forms of spondylometaphyseal dysplasia, "type VII" are presented and the diagnostic findings as well as the differential diagnostic criteria are discussed.

Bone Diseases, Developmental↗
PubMed1992

Pulmonary blastoma: a rare case of childhood malignancy.

A case of pulmonary blastoma is presented with review of the radiographic, ultrasonographic and CT appearances of this rare malignant tumor of children. Pulmonary blastoma arises from primitive lung mesenchyma and histologically resembles fetal lung. The clinical presentation is usually respiratory distress. The prognosis of the disease is poor even if surgical resection, supplemental chemotherapy and radiation therapy are performed. We present a case of pulmonary blastoma who died two days after surgical resection.

Child, Preschool↗
PubMed1990

Swollen neck in children: a report of two cases.

Two cases of swollen neck during straining, coughing, or crying caused by internal jugular vein dilatation that were diagnosed by ultrasonography and computed tomography are presented. With a review of the literature the aetiology and diagnostic procedure are discussed.

Child↗