Imaging the temporal fossa.

Expanding lesions of the temporal fossa.

Brain-stem Compression Expanding lesions in the temporal fossa readily displace the brain-stem towards the opposite side where it is forced against the edge of the tentorium. At the same time a wedge formed by the uncus and hippocampal gyrus is forced downward between the midbrain and the edge of the tentorium on the side of the lesion (Fig. i). These two mechanisms produce the various stages o...

The pterygopalatine fossa: postoperative MR imaging appearance.

BACKGROUND AND PURPOSE The pterygopalatine fossa (PPF) is an important anatomic location of the deep portion of the face. It is essential to review this area on both pre- and posttreatment studies of head and neck malignancies to assess local extent of disease or recurrence and perineural tumor spread. The purpose of this study was to review the postoperative appearance of the PPF on MR images....

Neuro Imaging of the Posterior Fossa

Imaging evaluation of the fetal posterior fossa

Radiol Bras. 2014 Jul/Ago;47(4):V In the present issue of Radiologia Brasileira there is an interesting study aimed at determining reference intervals for the fetal cisterna magna volume by means of the two-dimensional (2D) method with the multiplanar mode of Three-dimensional ultrasonography ( 3D US). The recent development in medical imaging have allowed for an accurate assessment of the feta...

Ruptured Intracranial Dermoid Cyst in Temporal Fossa.

deficits. There was no history of head injury or surgery. Plain radiographs of skull showed irregular calcifications in the left temporal region (Figure 1). Computed tomography (CT) of brain revealed a heterogeneous extra axial lesion in the anterior aspect of left temporal fossa and left middle cerebral artery cistern, showing calcification, soft tissue and fat density. Multiple tiny fat dropl...