Neovascular glaucoma in a blind eye was a complication of an enlarging intraconal optic glioma in an 11-year-old girl. Venous stasis retinopathy was observed several months before the appearance of iris neovascularisation and elevated intraocular pressure. We suggest that venous stasis retinopathy in a patient with optic glioma is a reasonable indication for resection of the intraconal portion ...

a Department of Palliative, Rehabilitation, and Integrative Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas b Department of Psychology, University of Houston–Clear Lake, Houston, Texas c Division of Pediatrics, The University of Texas MD Anderson Cancer Center, Houston, Texas d Department of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houst...

Several ocular findings have been associated with neurofibromatosis type 2 (NF 2) since the identification of this disease as a distinct clinical entity. Juvenile cataracts were reported first, followed by combined pigment epithelial and retinal hamartomas. In a recent report, epiretinal membranes were described in seven of nine patients. Moreover, an association between NF 2 and optic disc gli...

BACKGROUND AND PURPOSE Optic nerve tortuosity is one of several nonmalignant abnormalities documented on MR imaging in patients with neurofibromatosis type 1 and may be related to the development of optic pathway gliomas. This study seeks an operational definition for optic nerve tortuosity. MATERIALS AND METHODS A focus group of 3 pediatric neuroradiologists reviewed 20 MR images of the brai...

A case of malignant optic glioma of adulthood is imaged in its early and late stages with high-resolution MR. The images show the mass to arise from the right optic nerve before invasion of the optic chiasm.

Various studies on the antagonistic activity of intestinal organisms have compared the antibacterial spectra of cultures isolated from large numbers of people (Halbert, 1948a; Gardner, 1950; Blackford et al., 1951; Cook et al., 1953). Little emphasis, however, has been placed on variation in antibiotic production by the organisms of a given person over a period of time. Halbert (1948b) reports ...

Stokvis (1) advanced the idea that blood in the intestinal tract was the source of the urinary porphyrin. Schumm (2) also held this belief. Subsequent studies, notably those of Fischer and Hilmer (3), Brugsch (4, 5), and Kaunitz (6) indicated that a variable fraction of the urinary coproporphyrin was thus derived. The presence of a porphyrin in meconium (2, 7, 8), later identified by Waldenstr6...