Grating-based x-ray dark-field mammography: Assessing complementary imaging information in simple cystic lesions and typical fibroadenoma.

Background: A significant proportion of false positive recalls of mammography-screened women is due to benign breast cysts and simple fibroadenomas. These lesions appear mammographically as smooth-shaped dense masses and require the recalling of women for a breast ultrasound to obtain complementary imaging information. They can be identified safely by ultrasound with no need for further assessment or treatment.

Parahydrogen-Polarized [1- C]Pyruvate for Reliable and Fast Preclinical Metabolic Magnetic Resonance Imaging.

Hyperpolarization techniques increase nuclear spin polarization by more than four orders of magnitude, enabling metabolic MRI. Even though hyperpolarization has shown clear value in clinical studies, the complexity, cost and slowness of current equipment limits its widespread use. Here, a polarization procedure of [1- C]pyruvate based on parahydrogen-induced polarization by side-arm hydrogenation (PHIP-SAH) in an automated polarizer is demonstrated.

High-resolution and sensitivity bi-directional x-ray phase contrast imaging using 2D Talbot array illuminators.

Two-dimensional (2D) Talbot array illuminators (TAIs) were designed, fabricated, and evaluated for high-resolution high-contrast x-ray phase imaging of soft tissue at 10-20 keV. The TAIs create intensity modulations with a high compression ratio on the micrometer scale at short propagation distances. Their performance was compared with various other wavefront markers in terms of period, visibility, flux efficiency, and flexibility to be adapted for limited beam coherence and detector resolution.

[Expression of CD44 and isoforms v4, v5, v6, v7, v10--new prognostic parameters in ductal pancreatic carcinoma?].

Unlabelled: Prognostically relevant factors based on the histological assessment of the resected pancreas are known. However, additional parameters, such as biological staging of the intrinsic malignant potentiality of the tumor, would be useful. There has been no uniform finding of a relationship between CD44 variant expression and tumor progression.

[Melkersson-Rosenthal syndrome. 2: Diagnosis, differential diagnosis, course, prognosis, neuropathology, therapy].

The diagnosis of Melkersson-Rosenthal syndrome (MRS) is rarely established, mainly because abortive cases are common. The principal symptoms are recurrent circumscribed swelling mostly of the orofacial region, peripheral facial paralysis and lingua plicata, which is nowadays no longer regarded as pathognostic. The syndrome is defined best as general disorder respectively "recurrent edematous granulomatosis" with specific pathoclisis to "angioneurotic intermittent edemas".

[Neurological-psychiatrical and muscular manifestations of vasculitis nodosa (author's transl)].

A general review on vasculitis nodosa of report in literature since the work of Strammler 1958 is given. The neurological and psychiatric manifestations of the disease are completely dealt with, whereas dermatological, ophthalmological and otological aspects are brieftly mentioned. Varieties of diffuse and localized cerebral, as well as peripheral syndromes are described.

[Erythematodes and nervous system (author's transl)].

Lupus erythematodes is related to the vegetative nervous system in Raynaud's disease, the butterfly distribution in the face, the involvement of the lateral part of the eyebrows (Hertoghe) and in cerebral attacks. Involvement of peripheral and central animal nervous systems is common and produces primary and secondary syndromes. Prominent are polymyositis or lupus-myopathy, in the brain mainly functional psychoses, epileptiform attacks, and a variety of focal, often very massive, signs.