Assessing the feasibility of mapping the tibialis anterior muscle with navigated transcranial magnetic stimulation in neuro-oncologic patients.

Mapping the lower extremity with navigated transcranial magnetic stimulation (nTMS) still remains challenging for the investigator. Clinical factors influencing leg mapping with nTMS have not been fully investigated yet. The aim of the study was to identify factors which influence the possibility of eliciting motor evoked potentials (MEPs) from the tibialis anterior muscle (TA).

Collision Tumor Composed of Meningioma and Cavernoma.

A true collision tumor is a rare entity composed of two histologically distinct neoplasms coinciding in the same organ. This paper reports a unique case of cerebral collision tumor consisting of two benign components. On the first hand, meningioma which is usually a benign lesion arising from the meningothelial cell in the arachnoidal membrane.

Major prognostic role of Ki67 in localized adrenocortical carcinoma after complete resection.

Background: Recurrence of adrenocortical carcinoma (ACC) even after complete (R0) resection occurs frequently.

Objective: The aim of this study was to identify markers with prognostic value for patients in this clinical setting.

Design, Setting, And Participants: From the German ACC registry, 319 patients with the European Network for the Study of Adrenal Tumors stage I-III were identified.