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Category Archives: Pediatrics
Educational Presentation: Holoprosencephaly
Holoprosencephaly (FILEminimizer)
Here is a nice and concise presentation on the different types of holoprosencephaly done by one of our Neuroradiology Fellows, Dr. Janica Walden. We hope that you enjoy it and find it instructive and useful.… Continue reading >>
Posted in Educational Presentations, Pediatrics
Tagged Congenital abnormalities, Education
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Anomalies After Exposure to Methotrexate in the 1st Trimester
This is a 2 day-old term baby with history of methotrexate exposure during first trimester as an abortion attempt. No other relevant clinical history. [...] Continue reading
Neonatal Pituitary Gland
This is a one month-old female with congenital hypothyroidism, hypoplasia of the thyroid gland, elevated TSH (eight times normal value), elevated FSH and LH (four times normal values), normal GH, without diabetes insipid. She is now being treated for the hypothyroidism, and we are waiting for hormonal follow-up; MRI follow-up in three to six month follow-up.
Has anyone an explanation for the focal bright spot on T1-weighted images in the cranial portion of the pituitary stalk, just down the median eminence, in the presence of a normal neurohypophysis?
Is it an “ectopic” adenohypophysis?
Is this a thin pituitary stalk in … Continue reading >>
CT Still Useful for Retinoblastoma?
The article “Is CT Still Useful in the Study Protocol of Retinoblastoma?“, published July 17 in the Publication Preview section of AJNR, confirms that even when high-field MRI is not available, CT can be avoided in the workup of the patient with suspected retinoblastoma, when MRI is combined with a good ophthalmoscopic exam and ocular sonography. Certainly with 3D imaging at 3T, the detection rate with MRI could reasonably be expected to be even higher, allowing us to “Image Gently” and more accurately.
The authors state that “CT is still the method of choice for detecting intraocular calcium … Continue reading >>
Posted in Brain, Head and Neck, Pediatrics
Tagged neuro mri protocols, orbit, techniques CT and MR
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ASL Perfusion in Cortical Dysplasia
Arterial spin labeling perfusion is becoming an important clinical tool. We find it particularly useful in children in whom it is difficult to obtain contrast enhanced MR perfusion due to the smaller size of needles used. Here is a case of a balloon cell type cortical dysplasia in the right temporoparietal region 
with low cerebral blood flow on the ASL study. I think that our Blogsite is the ideal place to share these cases with the rest of the Neuroradiology community. Similar findings to the ones shown here were reported in the following article found in the publication preview section … Continue reading >>
Posted in Brain, Pediatrics
Tagged Congenital abnormalities, Cortical Dysplasia, Perfusion MR
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Fetal MRI
I was wondering how many sites are doing fetal MRI, and who is interpreting the images (neuroradiologists, pedi neuroradiologists, other radiologists, perinatologists, pedi neurosurgeons). If you do fetal MRI at your site (academics or private practice), it would be great to hear from you. Thanks.… Continue reading >>
Regarding Pontine Tegmental Cap Dysplasia
There is a very nice article on this very uncommon malformation in AJNR 2009; 30: 113. We have only seen it in patients being screened for congenital sensorineural hearing loss. In these patients, its severity varies. In the above mentioned article, 4 of 6 patients had cranial nerve VIII abnormalities. I would be interested in learning from other neuroradiologists who are familar with the malformation what their experience has been.… Continue reading >>
Posted in Brain, Pediatrics
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