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Biomedical subjects

J J Seibert

Publications and source records attributed to J J Seibert.

At least 55 records · Page 3Linked to original sources
PubMed1988

A protocol of plain radiographs, hip ultrasound, and triple phase bone scans in the evaluation of the painful pediatric hip.

A useful protocol for the evaluation of hip pain in the pediatric patient, using a combination of plain radiographs, hip ultrasound (US), and triple phase radionuclide bone scans is presented. Patients with hip pain were initially evaluated by plain radiographs of the pelvis and hips. If no diagnosis was reached, the hips were studied for effusions by real-time hip ultrasonography. If an effusion was present, the joint was aspirated for diagnosis. If no effusion was present by US or if no diagnosis was reached by aspiration, triple phase radionuclide bone scans were performed. Fifty patients were evaluated by this prospective protocol, and the diagnosis was reached in 48 of the 50 cases (10 by plain radiographs, 16 by US, and aspiration of the joint, and 22 by triple phase bone scans). Hip effusions were found in 20 patients by US, with no false positives or false negatives. Previous studies for detecting effusions by US have emphasized absolute measurements of the capsular width, but we report a typical appearance of the hip capsule when fluid is present (a bulging convex capsule). When no effusion is present, the capsule is concave and parallels the long axis of the femoral neck.

Child↗
PubMed1987

High resolution ultrasound characterization of soft tissue masses in children.

Forty-two soft tissue masses in infants and children were examined with high resolution ultrasonography. Sonography was diagnostically specific in 17/42 (40%), useful but not diagnostic in 24/42 (58%), and misleading in 1/42 (2%) of soft tissue masses. Lesions with diagnostic sonographic features included cystic hygroma, fibromatosis colli, lymphadenopathy with abscess formation, and one case of osteomyelitis.

Abscess↗
PubMed1987

Dorsal defect of the patella and infection.

Lesions of the patella are relatively rare, although a large variety of etiologies have been reported. To our knowledge this is only the second reported case of a Brodie's abscess of the patella. Its radiologic appearance was identical to that described for the common dorsal defect of the patella.

Abscess↗
PubMed1987

Intermediate imperforate anus: clinical and radiographic implications.

Five male infants are described with imperforate anus with external signs of a low lesion but with subsequent evidence of a higher lesion with demonstration of a fistula into the anterior urethra either at surgery or by radiographic studies. The cases should be considered an intermediate form of imperforate anus with external signs of a low lesion but with fistula characteristically to the membranous or bulbous urethra. These infants should be treated surgically as high lesions with initial diverting colostomies.

Anus, Imperforate↗
PubMed1987

The gamut of increased whole bone activity in bone scintigraphy in children.

Whole bone activity on skeletal scintigraphy in children, although nonspecific, is uncommon and was caused by unusual presentations of osteomyelitis in two of eight patients. Soft tissue pathology, including cellulitis and vascular obstruction, was causative in four of eight cases. Whole bone activity was seen in two children with trauma due presumably, to subperiosteal hematoma formation and strongly supported the diagnosis of child abuse.

Adolescent↗
PubMed1987

Indium-111 leukocyte accumulation in submandibular gland saliva as a cause for false-positive gut uptake in children.

Unexplained false-positive accumulation of In-111 leukocyte in the gastrointestinal tract has been reported previously. In a pediatric population, uptake in the submandibular gland was noted in 19 of 42 children. This is believed to be a normal finding in children that is not seen in adults. In some of these 19 children, unexplained gastrointestinal activity was also noted. Saliva from a patient with false-positive gastrointestinal uptake and positive submandibular activity was positive for In-111. One suggested cause of unexplained gut activity may be secondary to swallowed activity in the saliva from the normal submandibular activity in children.

Child↗
PubMed1987

Ultrasonography in the diagnosis of pyloric stenosis.

We evaluated 101 children for hypertrophic pyloric stenosis (HPS) at Arkansas Children's Hospital. Diagnosis was based upon a palpable epigastric "olive" characteristic of HPS, or sonographic measurements of the pylorus. In 28 children, the diagnosis was confirmed by physical examination alone; the remaining 73 had ultrasound examination. Pyloric measurements included muscle thickness, transverse diameter, and total length. Pyloric function was also studied during examination. Using a thickness of less than 4 mm, a diameter of less than 13 mm, and a length of less than 17 mm as normal criteria, 31 cases of HPS were correctly diagnosed by ultrasonography. In the remaining 42, no pyloric abnormality could be demonstrated on further evaluation.

Evaluation Studies as Topic↗
PubMed1987

Infarction of the orbit and paranasal sinuses in sickle cell disease.

We have reported the case of a 19-year-old black man with sickle cell disease who had swelling over the right frontal and periorbital areas. Plain roentgenograms and CT scans were consistent with frontal sinus disease. At trephination, however, sterile liquescent blood clot was found in the frontal sinus. Awareness of the orbital apex syndrome and infarction of the orbit and sinuses in patients with sickle cell disease is necessary to prevent misdiagnosis of these conditions as suppurative sinusitis.

Adult↗
PubMed1987

Sonographic detection of neonatal umbilical-artery thrombosis: clinical correlation.

Eighty-one neonates were prospectively studied by sonography of the abdomen to determine the frequency, risk factors, clinical symptoms, complications, and natural history of aortic thrombosis seen in conjunction with the use of umbilical-artery catheters. Twenty-six percent of neonates developed sonographically detectable thrombosis. Twenty-nine percent of the neonates with thrombosis were asymptomatic, and an additional 24% had hematuria (diagnosed by dipstick) as their only clinical finding. Significant risk factors associated with aortic thrombosis were calcium in the umbilical-artery-catheter infusate, placement of the catheter for any length of time above the renal arteries, and low birth weight. Physical examination did not reliably predict aortic thrombosis, and asymptomatic thrombosis was more frequent than previously recognized.

Aorta, Abdominal↗
PubMed1987

Ultrasound imaging as a screening study for malignant soft-tissue tumors.

Fifty patients who had a palpable soft-tissue mass and an apparently normal radiograph were studied with ultrasound imaging before excision or biopsy of the lesion was done. As shown by the sonograms, thirty-five lesions had a discrete echo pattern (usually reduced echoes and a clearly defined lesional margin) and fifteen had an ill defined pattern (similar to the pattern of the surrounding normal tissues with no definable lesional margin). Fourteen lesions were malignant and thirty-six, benign. The sonograms of all fourteen malignant lesions showed a discrete pattern, while the sonograms of the benign ones showed twenty-one discrete and fifteen ill defined patterns. Therefore, the malignant lesions produced a discrete pattern in every instance, and every lesion that produced an ill defined pattern was benign. Fourteen of the fifty lesions were cystic; of these, thirteen were benign and one was malignant. The sonograms correctly identified the cyst in seven of the thirteen benign lesions and in the one malignant cystic lesion. Based on these findings, we concluded that all palpable soft-tissue masses that appear to be discrete on a sonogram should be diagnosed without delay by examination of a specimen taken at biopsy, whereas lesions that have an ill defined appearance on a sonogram may be assumed to be benign and may safely be observed in selected patients.

Algorithms↗
PubMed1986

High resolution ultrasonography of the parotid gland in children.

High resolution ultrasonography has revolutionized imaging of the superficial parotid gland. The fine morphology of the parotid gland can be exquisitely visulized. Anatomical landmarks such as the mastoid tip, the sternocleidomastoid muscle, the styloid process, the posterior facial vein, the internal jugular vein, and the external carotid artery can easily be identified in relationship to the parotid. The course of the facial nerve can be inferred by visualization of these landmarks. Common masses within the parotid in children such as hemangiomas, mixed parotid tumors, and lymphadenopathy can be demonstrated. Parotid masses are uncommon in children but can be easily evaluated by high resolution ultrasonography.

Adenoma, Pleomorphic↗
PubMed1986

Acquired bone dysplasia secondary to catheter-related complications in the neonate.

Four neonates presented with leg-length discrepancy in the first and second year of life, secondary to physeal growth arrest. All four had stormy postnatal periods, requiring indwelling arterial and/or hyperalimentation catheters. One had documented osteomyelitis. In the last three cases, the growth disturbance may have been secondary to aseptic emboli to the bones from the indwelling catheters. In two cases, there was evidence of other nonseptic embolic phenomena.

Bone Diseases, Developmental↗