Enterocolitis following endorectal pull-through procedure in children with Hirschsprung's disease

The enterocolitis following a pull-through in Hirschsprung's disease can be life-threatening and difficult to distinguish clinically from gastroenteritis and post-operative complications. We reviewed retrospectively the abdominal radiographs in our series to identify specific radiographic characteristics of this syndrome in this population. A total of 55 episodes of enterocolitis with an abdominal series at presentation were located in the files of 43 patients following pull-through surgery for Hirschsprung's disease. There were 15 abdominal series with other complications of Hirschsprung's disease and surgery (seven cases of small bowel obstruction, one of fistula, one of abscess, six of severe constipation) and 71 surveillance follow-up studies. Radiographs were evaluated for bowel dilatation, air-fluid levels, intestinal cut-off sign, spiculation, and pneumatosis. The intestinal cut-off sign with two or more air-fluid levels had sensitivity of 68% and specificity of 83%, with a positive predictive value of 0.71 and overall accuracy of 77%. Our review of enterocolitis following pull-through in children with Hirschsprung's disease concludes that the constellation of an intestinal cut-off sign and at least two air-fluid levels on the abdominal series strongly suggests the diagnosis.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/46704/1/247_2005_Article_BF02012178.pd

Sonographic Diagnosis of Neonatal Diaphragmatic Inversion

No Abstract.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/38183/1/1870120309_ftp.pd

The role of arthrography in the management of dysplasia epiphysealis hemimelica

Dysplasia epiphysealis hemimelica can be diagnesed on plain radiographs of the affected areas. However, double contrast arthrography in three new cases provided additional information. The cartilaginous portions of the lesion at the articular surface of the bone were precisely demonstrated, aiding the orthopedic surgeon in deciding which patients should have surgery and planning the extent of operation necessary.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/46781/1/256_2004_Article_BF00354065.pd

Pulmonary involvement in pediatric lymphoma

The prevalence of pulmonary lymphoma in the pediatric age group is not documented in the literature.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/46710/1/247_2003_Article_1080.pd

CT appearance of the spleen following conservative management of traumatic injury

Objective: To describe the long-term changes in the traumatized spleen following conservative management in pediatric patients. Methods: Between 1991 and 1997, 92 children were imaged with splenic trauma. The study population includes the 25 boys and 11 girls with follow-up computed tomography (CT) imaging at our institution. The follow-up CT studies were evaluated to determine the evolution of splenic injury. Results: On initial CT there were 6 grade I, 12 grade II, 9 grade III, and 9 grade IV–V splenic injuries. In follow-up 11 spleens were normal (30 %), including at least one in each grade of severity of injury. Splenic abnormalities were identified on follow-up in 25 children. These findings comprised clefts in 8 children, small cysts in 4, and devascularized segments involving less than 1 cm 3 in 6, 1–2 cm 3 in 2, and 2–4 cm 3 in 5 children. Conclusions: All grades of splenic injury can resolve completely on subsequent CT imaging. In this series 30 % of patients had a normal follow-up CT. The most common persistent abnormalities included clefts and devascularized areas less than 4 cm 3 .Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/42349/1/10140-6-3-157_90060157.pd

Cranial Morphology of Protosiren fraasi (Mammalia, Sirenia) from the Middle Eocene of Egypt: A New Study Using Computed Tomography

41-67http://deepblue.lib.umich.edu/bitstream/2027.42/48641/2/ID508.pd

Follow-up imaging of benign pediatric liver tumors

Though surgery has been recommended in the past for the management of benign hepatic tumors, the current emphasis is on medical management. This report of 4 cases with long-term (8–28 months) follow-up emphasizes the natural history of these tumors which serves to indicate the advantages and disadvantages of CT and ultrasound. The lesions typically involute with some calcification. Calcification can technically be a problem in follow-up with sonography.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/46688/1/247_2006_Article_BF02386841.pd

Single sysem ectopic ureters and ureteroceles associated with dysplastic kidney

Eight children forming an uncommon subgroup of renal obstructive dysplasia are presented. Each child had a nonfunctioning dysplastic kidney with a single collecting system with ectopic ureteral insertion and/or ureterocele. Five of the children had classic multicystic dysplastic kidneys, one had they hdyronephrotic type of multicystic dysplasia kidney had two had hypoplastic kidneys. Other significant medical problems in 5 of the 8 children (63%Z) included VACTERL association, congenital heart diseaise and other genitourinary malformations. Unlike some children with unilateral multicystic dysplasia kidney, this subgroup of children ahs an increased risk of infection. The must be correctly identified on imaging so that tailored clinical management decisions can be made and associated anomalies detected.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/46698/1/247_2005_Article_BF02012501.pd

ROC study of the effect of stereoscopic imaging on assessment of breast lesions

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/135047/1/mp0172.pd

Sonographic detection of monoamniotic twins

The true incidence of monoamniotic twinning has been almost impossible to determine accurately because it requires closer inspection of hte membranes and placenta at delivery than is usually performed. Sonography of 3440 patients presenting for genetic amniocentesis identified 39 twin gestations, one of which was monoamniotic (0.026%). Prospectively with ultrasound, four of the twin gestations had been thought to be monoamniotic. A. more recent case of suspected monoamniotic twinning revealed two sacs when newer computer-based real-time equipment with variable focusing capability and improved spatial resolution was used. Sonographic diagnosis of monoamniotic twinning must be accurate since it identifies patients at higher risk for cord accidents. These patients need obstetrical care appropriate for a pregnancy at high risk. In addition, failure to identify a second sac that could harbor a chromosomally abnormal fetus has both medical and legal implications. State-of-the-art ultrasound equipment and attention to detail is required.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/38189/1/1870150607_ftp.pd