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Joseph H. Piatt Jr., Gerald A. Campbell, and W. Jerry Oakes

✓ A 6-month-old child with an isolated oculomotor nerve palsy was found to have a papillary meningioma infiltrating the nerve along its intracranial course adjacent to the midbrain. The clinical implications of this unusual histological variant are discussed.

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Joseph H. Piatt Jr. and David A. Clunie

✓ The authors present what is believed to be the first description of an intracranial arterial aneurysm attributable to birth trauma. A male neonate, the product of a precipitious, instrumented, footling breech delivery, exhibited seizures at the age of 18 hours. A computerized tomography scan of the head showed hemorrhage along the tentorium with a globular component at the incisura. Transfontanel Doppler ultrasound examination detected pulsatile arterial flow within the globular mass. Cerebral angiography demonstrated a 1.5-cm saccular aneurysm arising from a small distal branch of the superior cerebellar artery. The pathogenesis of aneurysms in children is obscure and controversial. Birth trauma may be responsible for some pediatric aneurysms that are currently classified as idiopathic or congenital, particularly aneurysms in the region of the tentorial incisura.

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Joseph H. Piatt Jr.

✓ A minor modification of the technique of peritoneal cerebrospinal fluid shunt insertion allows more anatomical closure of the abdominal wound and may protect the shunt from contamination by superficial abdominal wound infection.

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Joseph H. Piatt Jr

External hydrocephalus has been associated with subdural hematomas in infancy, and the hematomas have been noted to be secondary to minor trauma or have even been described as spontaneous. The author reports the case of an infant with external hydrocephalus who developed retinal as well as subdural hemorrhages after sustaining a minor head injury. Although retinal hemorrhage in infancy has been considered virtually pathognomonic of child abuse, in the setting of external hydrocephalus a more cautious interpretation may be appropriate.

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Rebecca M. Allen, Michael A. Sandquist, Joseph H. Piatt Jr., and Nathan R. W. Selden

Object. The authors performed spinal ultrasonography and/or magnetic resonance (MR) imaging in 20 consecutive newborns with spinal strawberry nevi.

Methods. In 15 patients the strawberry nevi were isolated and in five they were associated with other cutaneous markers of occult spinal dysraphism (OSD). In four of five patients with additional cutaneous markers, but in none of those without, MR imaging and surgical exploration demonstrated OSD. The authors found that strawberry nevi in isolation do not appear to indicate underlying dysraphic states. The sparse clinical literature on this topic, which is reviewed, confirms an association between OSD and strawberry nevi presenting in conjunction with other cutaneous signatures. By contrast, spinal strawberry nevi occurring alone may not indicate the presence of underlying dysraphism.

Conclusions. A prospective study of larger numbers of patients with isolated strawberry nevi, undergoing MR imaging evaluation, is necessary to determine whether neuroimaging screening in these patients is indicated.