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Biomedical subjects

L E Swischuk

Publications and source records attributed to L E Swischuk.

At least 19 recordsLinked to original sources
PubMed2000

Is the open-mouth odontoid view necessary in children under 5 years?

OBJECTIVES: Questionnaires (984) were submitted to pediatric radiologists to determine how often odontoid fractures were missed on lateral views and detected on open-mouth odontoid views in children under 5 years. Other questions relating to imaging protocols of the odontoid also were included, and there were 432 respondents. RESULTS: Of these, 161 respondents indicated that an open-mouth odontoid view was not routinely included in their imaging protocol. CONCLUSIONS: There was considerable variability on how the problem of imaging of the odontoid was addressed, but overall there were enough data to begin to consider the concept that the open-mouth odontoid might not be needed in patients under 5 years of age if a lateral view is normal.

Child, Preschool↗
PubMed1999

Upper tibial hyperextension fractures in infants: another occult toddler's fracture.

We describe the radiographic findings associated with occult upper tibial fractures in infants and young children and offer an explanation for the underlying mechanism from which they result. These fractures tend to be subtle, just as the classic spiral tibial fracture originally described by Dunbar et al. (1964, J Can Assoc Radiol 15: 136-144). The fracture we describe results from a hyperextension injury to the knee, and the knowledge of the mechanism of injury, the subtle radiographic findings, and the findings on physical examination allow one to diagnose this fracture with confidence. Otherwise, it easily can go undetected.

Child, Preschool↗
PubMed1998

Fibromatosis colli of infancy: variability of sonographic appearance.

PURPOSE: We describe the variable sonographic appearances of fibromatosis colli, a disease that presents as a mass-like enlargement of the sternocleidomastoid muscle during the first 8 weeks of life. METHODS: Sonograms and records of 12 infants who presented with a sternocleidomastoid mass or torticollis before they were 12 weeks old were retrospectively reviewed for sonographic features (presence of a mass, diffuse muscle enlargement, and echogenicity), medical history, and follow-up data. RESULTS: Sonographically, 6 infants had only a mass in the sternocleidomastoid muscle, 2 had a mass with fusiform muscle enlargement, and 4 had only muscle enlargement. Five masses were hyperechoic, and 1 mass was of mixed echogenicity. The 2 masses associated with muscle enlargement were hypoechoic. Three cases of diffuse muscle enlargement were of mixed echogenicity, and 1 was hypoechoic. Unusual variations included (1) a mass split longitudinally into 2 components and (2) a diffusely enlarged muscle with a striated pattern of mixed echogenicity. Follow-up in 10 patients at 4 months and in 7 patients at 6 months showed clinical improvement. CONCLUSION: Fibromatosis colli usually appears sonographically as a hyperechoic mass or diffuse sternocleidomastoid enlargement of mixed echogenicity. Variations in its appearance should not prevent the correct diagnosis as long as the abnormality is intramuscular and adjacent soft tissues are normal.

Fibroma↗
PubMed1998

Hypercalcemia associated with dysgerminoma: case report and imaging findings.

Hypercalcemia associated with malignancy is rare in children. We report a case of hypercalcemia associated with ovarian dysgerminoma in a 13-year-old girl with renal medullary calcinosis and vascular calcifications. To our knowledge this is the first report of the imaging findings in this condition and only the fourth case report of hypercalcemia associated with dysgerminoma.

Adolescent↗