Tentorial Venous Anatomy: Variation in the Healthy Population

Individual variation in the size of the tentorial opening.

Tentorial dural arteriovenous fistula of the medial tentorial artery

The medial tentorial artery arises from the meningohypophyseal trunk, a branch of the cavernous internal carotid artery, and it is poorly visualized on angiography in the absence of pathologically increased blood flow. We present the case of a 38-year-old man with intraventricular hemorrhage from a tentorial dural arteriovenous fistula (DAVF) singularly supplied by a robust medial tentorial art...

Defining the Limits of Normal Conjunctival Fornix Anatomy in a Healthy South Asian Population

PURPOSE Quantifying the extent of conjunctival fibrosis for documentation of progression in conjunctival scarring disease is a clinical challenge. Measurement of forniceal foreshortening facilitates monitoring of these disorders. This study aims (1) to define the limits of the normal human conjunctival fornices and how these alter with age and (2) to provide normative data for upper and lower f...

Tentorial mobility in centipedes (Chilopoda) revisited: 3D reconstruction of the mandibulo-tentorial musculature of Geophilomorpha

Mandibular mechanisms in Geophilomorpha are revised based on three-dimensional reconstructions of the mandibulo-tentorial complex and its muscular equipment in Dicellophiluscarniolensis (Placodesmata) and Hydroschendylasubmarina (Adesmata). Tentorial structure compares closely in the two species and homologies can be proposed for the 14/17 muscles that attach to the tentorium. Both species reta...

Tentorial Traversal by Ependymoblastoma

An otherwise normal 28-month-old boy had a 2-month history of intermittent vomiting and a 1-week history of headaches. Neurologic examination was normal except for a right extensor plantar response. Axial CT scan (Fig . 1A) showed a large primarily intraventricular mass occupying the posterior left cerebral hemisphere. Directly caudad to this, a similar tumor was present in the left cerebellar ...