MRI versus ¹³¹I whole-body scintigraphy for the detection of lymph node recurrences in differentiated thyroid carcinoma.

Objective: The aim of this study was to compare the clinical usefulness of MRI and radioiodine (¹³¹I) whole-body scintigraphy for the detection of lymph node metastases in differentiated thyroid carcinoma (DTC).

Materials And Methods: After surgery and ¹³¹I therapy, 40 patients with DTC underwent ¹³¹I whole-body scintigraphy and MRI. Each patient was clinically suspected of having or already had evidence of nodal recurrences (confirmed by laboratory studies, cytologic analysis, or whole-body scintigraphy).

Gender differences in brain areas involved in silent counting by means of fMRI.

Background: Pattern of brain asymmetries varies with handedness, gender, age, and with variety of genetic and social factors. Large-scale neuroimaging analyses can optimize the detection of asymmetric features and confirm the factors that might modulate pattern of brain asymmetries. We attempted to evaluate eventual differences between genders in hemodynamic responses to a simple language task.

Brain white matter 1 H MRS in Leber optic neuropathy mutation carriers.

Objective: This study was conducted in order to test the hypothesis that proton MR spectroscopic (1H MRS) profile of Leber's hereditary optic neuropathy (LHON) mutation carriers group (including both symptomatic and asymptomatic) differs from group of healthy individuals and to determine metabolite or ratio that contributes most to differentiation.

Patients And Methods: We performed single voxel 1H MRS in normal appearing white matter of eighteen LHON mtDNA mutation carriers bearing one of three LHON mtDNA point mutations and in fifty control subjects.

Results: ANOVA showed significant difference for absolute concentration of creatine (Cr) (p < 0.

[Nephrogenic systemic fibrosis--new clinical entity].

Nephrogenic systemic fibrosis (NSF) is a new clinical entity, which was first described in 2000. It is associated with fibrosis of the skin and visceral organs in patients with impaired renal function. There are over 260 reported cases of NSF with hundreds still not reported.

Leptomeningeal metastasis from malignant pleural mesothelioma.

Leptomeningeal metastasis from malignant mesothelioma is very rare; to our knowledge, only one imaging report exists in the literature. We present the case of widespread leptomeningeal lesions secondary to a malignant mesothelioma in a 61-year-old woman.