The dependence of soot particle ice nucleation ability on its volatile content.

Aviation soot can affect contrail and cirrus cloud formation and impact climate. A product of incomplete combustion, soot particles, are fractal and hydrophobic aggregates comprising carbonaceous spheres with complex physicochemical properties. In the cirrus cloud regime, the surface wettability and pore abundance of soot particles are important determinants for their ice nucleation ability pore condensation and freezing.

Non-enhancing relapse of a primary CNS lymphoma with multiple diffusion-restricted lesions.

Primary CNS lymphoma (PCNSL) and its variant primary intraocular lymphoma (PIOL) are rare forms of extranodal non-Hodgkin's lymphoma confined to the CNS including the retina and the optical nerve; histologically, most cases are diffuse large B cell lymphomas. PCNSL in immunocompetent patients display typical radiological features on MRI, i.e.

Diffuse leukoencephalopathy and brain edema: unusual presentations of CNS relapse of acute myeloid leukemia.

An isolated CNS relapse is rarely seen in acute myeloid leukemia. However, it has a potentially fatal clinical outcome. We herein present the case of a 39-year-old man, who presented to our emergency room with horizontal diplopic images, vertigo, bilateral deafness, and progressing somnolence.

Combined treatment of pediatric high-grade glioma with the oncolytic viral strain MTH-68/H and oral valproic acid.

The case of a 12-year-old boy with anaplastic astrocytoma of the left thalamus is reported. Postoperative irradiation and chemotherapy could not repress tumor progression; therefore, treatment was undertaken with an oncolytic virus, MTH-68/H, an attenuated strain of Newcastle disease virus (NDV), and valproic acid (VPA), an antiepileptic drug, which also has antineoplastic properties. This treatment resulted in a far-reaching regression of the thalamic glioma, but 4 months later a new tumor manifestation, an extension of the thalamic tumor, appeared in the wall of the IVth ventricle, which required a second neurosurgical intervention.

Conditions of iodine contrast transfer from lumbosacral CSF to blood.

Purpose: To determine conditions which influence transfer of iopamidol from lumbosacral cerebrospinal fluid (CSF) to blood.

Methods: Iopamidol transfer was measured in 32 patients over 180 min after radiculography and compared with patient variables.

Results: Iopamidol transfer began early in 12 patients, more slowly in 13 patients, and was not detected during sample period in 7 patients.

Determinants of lumbar CSF protein concentration.

Objective: To determine factors influencing the wide variation of protein concentration in lumbar cerebrospinal fluid (CSF).

Methods: Patient variables with potential influence on spinal CSF flow and resorption were measured in different patient settings and compared with albumin and IgG CSF/serum quotients.

Results: In patients whose diagnostic lumbar puncture produces normal CSF the albumin quotient increased with body mass index (r = 0.