Related Experiment Video
Updated: Jul 5, 2026

10:49
Ocular Kinematics Measured by In Vitro Stimulation of the Cranial Nerves in the Turtle
Published on: June 2, 2018
[Neurinomas of the trochlear nerve]
Zhurnal Voprosy Neirokhirurgii Imeni N. N. Burdenko
|May 21, 2008
Summary
Trochlear neurinomas, rare tumors, were surgically treated in two cases. Different surgical approaches were used depending on tumor location within the tentorial notch for successful removal.
Area of Science:
- Neurosurgery
- Neuropathology
Background:
- Trochlear neurinomas are exceptionally rare tumors arising from the trochlear nerve.
- Surgical management is the primary treatment modality for symptomatic neurinomas.
Observation:
- Two cases of surgically treated trochlear neurinomas are presented.
- Case 1: Tumor in the lateral tentorial notch, treated via a retromastoid approach.
- Case 2: Tumor in the posterior tentorial notch, treated via a paramedian suboccipital supracerebellar approach.
Findings:
- Successful surgical resection was achieved in both cases.
- The choice of surgical approach was tailored to the specific location of the trochlear neurinoma within the tentorial notch.
Implications:
- This case series highlights the feasibility of surgical treatment for trochlear neurinomas.
- Demonstrates the importance of selecting an appropriate surgical corridor for optimal outcomes in managing these rare tumors.
Related Concept Videos
Cranial Nerves: Types Part I
Cranial nerves are responsible for transmitting motor and sensory information between the brain and various parts of the body. There are twelve pairs of cranial nerves, with the first six being essential in sensory perception, motor control, and autonomic functions related to the head and neck.
Olfactory Nerve (Cranial Nerve I)
The olfactory nerve, or cranial nerve I, is unique as it is purely sensory and dedicated to the sense of smell. This nerve originates in the olfactory epithelium of the...
Olfactory Nerve (Cranial Nerve I)
The olfactory nerve, or cranial nerve I, is unique as it is purely sensory and dedicated to the sense of smell. This nerve originates in the olfactory epithelium of the...
Cranial Nerves: Types Part II
Cranial nerves are responsible for transmitting motor and sensory information between the brain and various parts of the body. There are twelve pairs of cranial nerves. While the first six innervate the head and neck, the latter six nerves innervate the head and neck, as well as organs and tissues in the thoracic and abdominal cavities. They facilitate communication, expression, and autonomic control within the human body.
Facial Nerve (Cranial Nerve VII)
Cranial nerve VII, or the facial nerve,...
Facial Nerve (Cranial Nerve VII)
Cranial nerve VII, or the facial nerve,...
Cranial Nerves: Overview and Anatomy
The cranial nerves are an important part of the complex network of nerves in the human body. These nerves emerge directly from the brain and are responsible for transmitting essential information between the brain and various parts of the head and neck. There are 12 pairs of cranial nerves, systematically numbered using Roman numerals from I to XII, beginning from the anterior and moving to the posterior of the brain. Each cranial nerve is uniquely identified by names that reflect its function...
Glaucoma: Overview
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
Cranial Part of Parasympathetic Division
The cranial part of the parasympathetic division plays a crucial role in regulating the visceral functions of the head and specific structures in the neck, thoracic, and abdominopelvic cavities. Preganglionic fibers of the parasympathetic division exit the brain through cranial nerves III (oculomotor), VII (facial), IX (glossopharyngeal), and X (vagus), delivering parasympathetic output to the respective visceral structures.
The vagus nerve (cranial nerve X) alone accounts for approximately 75...
The vagus nerve (cranial nerve X) alone accounts for approximately 75...
Accessory Structures of the Eye
Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...

