What is Intraconal lesion?

Intraconal orbital lesions are broadly divided into two main groups; those with or without involvement of the optic nerves: Lesions with optic nerve involvement: optic nerve glioma. optic nerve meningioma. optic neuritis.

How common are orbital tumors?

Conclusions: Orbital tumors in the senior adult population are malignant in 63% of cases. Malignant lymphoma is the most common tumor in this age group, accounting for 24% of cases. Overall, 25% of patients have systemic problems related to the orbital process develop, so systemic evaluation is warranted.

What is Intraconal space?

The intraconal orbital compartment or intraconal space is the conical space within the orbit and musculofascial cone, the base of which is anterior and is formed by the posterior half of the globe.

What causes orbital tumors?

What Causes an Orbital Tumor? Some orbital tumors develop when a cancer in another part of the body (such as breast, lung, or prostate cancer) metastasizes (spreads) to the orbit. Melanoma (skin cancer) may also spread to the orbit. Other orbital tumors are primary, developing in the orbital socket for unknown reasons.

What does Intraconal mean?

intraconal (not comparable) (anatomy) Within a cone. quotations ▼

What is Orbitotomy surgery?

Definition. A surgical procedure to obtain access and exposure to a particular area of the orbit.

How do you get rid of an orbital tumor?

Orbital tumors may be treated with stereotactic radiosurgery. This is a non-invasive procedure where highly focused beams of radiation are directed at the tumor to destroy it. Chemotherapy, where cancer-fighting drugs are delivered into the bloodstream to seek out and destroy the cancer cells, can also be used.

What does an orbital tumor feel like?

Most patients with orbital tumors notice a bulging of the eyeball or double vision (diplopia). Infections, inflammations and certain orbital cancers can cause pain. Less commonly, orbital tumors are accidentally discovered when patients have a CT or MRI of the head, sinuses and orbit.

What does Extraconal mean?

Extraconal refers to a process outside the muscle cone of the orbit.

What is Zinn annulus?

Definition. The annulus of Zinn is a dense, fibrous ring of connective tissue located at the apex of the orbit that is the origin of four of the six extraocular muscles – the superior rectus, inferior rectus, lateral rectus, and medial rectus.

What is eccentric proptosis?

Nonaxial or eccentric displacement is caused by extraconal lesions in which the direction of proptosis is determined by the site of the mass including maxillary sinus tumors, lacrimal gland tumors, and frontoethmoidal mucoceles.

What is the CPT code for Orbitotomy?

67412
CPT® Code 67412 in section: Orbitotomy without bone flap (frontal or transconjunctival approach)