What is a suprasellar lesion?
What is a suprasellar lesion?
Suprasellar arachnoid cysts are congenital lesions that can expand by cerebral spinal fluid secretion. The cyst wall may be imperceptible on CT and even on MRI. Arachnoid cysts do not show contrast enhancement, solid components or calcifications.
What is a suprasellar cyst?
Suprasellar cysts (SSCs) are benign developmental collections of cerebrospinal fluid (CSF). Their presence in utero and their high prevalence in children who have no history of trauma support the assumption that they are congenital [1-3].
What is the difference between pituitary adenoma and craniopharyngioma?
However, pituitary adenomas and craniopharyngiomas differ from each other, as follows: 1) pituitary adenomas are the third most common type of intracranial tumor and represent a significant proportion of brain tumors affecting humans and approximately 80% of sellar lesions, whereas craniopharyngiomas represent only 1 …
What is a Sellar lesion?
Sellar masses are associated most commonly with pituitary adenomas. Many other neoplastic, inflammatory, infectious, and vascular lesions, however, may affect the sellar region and mimic pituitary tumors. These lesions must be considered in a differential diagnosis.
Can you drive with a pituitary Tumour?
You can usually drive again after you have recovered from treatment for a pituitary tumour. If you had a type of surgery called craniotomy, you need to tell the DVLA and you need to stop driving for 6 months.
What to consider in differential of cystic suprasellar mass?
Other entities to consider in the differential of a cystic suprasellar mass include dermoids/epidermoids and teratomas, although they are less common midline lesions. Dermoids and teratomas often show presence of fat on CT or MR.
What are the symptoms of lesions in the Sellar suprasellar region?
The most frequent clinical manifestation of lesions located in the sellar-suprasellar region is headache. It often co-exists with symptoms of anterior pituitary gland insufficiency or hyperprolactinaemia caused by compression of the pituitary stalk.
What kind of MRI is used for suprasellar masses?
Suprasellar masses are neoplastic, vascular, congenital, or infectious/inflammatory in origin. Magnetic resonance imaging (MRI) is the study of choice for evaluating suprasellar masses, although computed tomography (CT) may provide complementary information. Suprasellar masses present with a variety …
Can a hemorrhagic cystic suprasellar expand laterally?
They may also show hemorrhagic or proteinaceous cystic changes with T1 hyperintensity, mimicking craniopharyngiomas, but they rarely calcify. The solid portions typically enhance uniformly, whereas the necrotic, cystic, or hemorrhagic portions do not. Macroadenomas can expand laterally and invade the cavernous sinus.
Suprasellar Tumors Suprasellar masses are neoplastic, vascular, congenital, or infectious/inflammatory in origin. Suprasellar masses present with a variety of neurologic or endocrine dysfunctions depending on their site of origin and mass effect on adjacent structures.
What does Suprasellar mean?
Medical Definition of suprasellar : situated or rising above the sella turcica —used chiefly of tumors of the pituitary gland.
Where is Suprasellar?
Suprasellar meningiomas tend to affect middle-aged men and women, account for about 10 percent of all meningiomas, and occur near the pituitary gland and optic nerves at the skull base. These slow-growing tumors can cause severe visual impairment in one or both eyes if they press directly on the optic nerves.
How can you tell the difference between pituitary adenoma and craniopharyngioma?
What is Sellar tumor?
Abstract. Neoplasms of the sellar region include pituitary adenomas, craniopharyngiomas, Rathke’s cleft cysts, and, less commonly, meningiomas, germinomas, and hamartomas. Each of these entities has unique diagnostic and treatment considerations.
How do you access the pituitary gland?
To reach the pituitary, the surgeon opens the boney walls of the sphenoid sinus with small surgical chisels, drills, or other instruments depending on the thickness of the bone and sinus. Small tools and a microscope are used to remove the tumor.
What happens if meningioma is left untreated?
If you leave a meningioma untreated, it can grow as large as a grapefruit can cause persistent headaches, nausea, loss of neurological function, weakness and/or numbness and tingling on one side of the body, seizures, hearing or vision loss, balance problems, and muscle weakness.
What is Suprasellar extension?
Tumors are generally known to follow a path of least resistance, and as they grow, pituitary macroadenomas may extend to structures surrounding the sella turcica, including the sphenoid sinus, cavernous sinuses, or suprasellar region.
What is Sellar lesion?
Where is the Sellar region?
The sella and parasellar region is a unique region of the skull base situated directly posterior to the ante- rior skull base in the central region of the skull base inferiorly. Centered within the sphenoid bone, this region may truly represent the center of the central skull base.
What is the differential for suprasellar cystic lesions?
The differential for suprasellar cystic lesions is large and predominantly includes developmental and neoplastic conditions.
Which is the best method to diagnose suprasellar masses?
Magnetic resonance imaging (MRI) is the study of choice for evaluating suprasellar masses, although computed tomography (CT) may provide complementary information. Suprasellar masses present with a variety of neurologic or endocrine dysfunctions depending on their site of origin and mass effect on adjacent structures.
What kind of tumor is an intra-suprasellar tumor?
Craniopharyngioma. Craniopharyngiomas are benign epithelial tumors known to arise from the squamous rests along the remnants of the hypophyseal-Rathke (craniopharyngeal) duct. They are most commonly suprasellar in location but can also be mixed intra-suprasellar or, rarely, purely intrasellar.
What are the symptoms of cystic suprasellar mass-JAOCR?
The peak incidence is between 10-14 years of age (adamantinomatous subtype) with a second peak in the 4 th to 6 th decade (squamous-papillary subtype). 1 The most common symptoms at presentation are headaches, visual field defects, or anterior pituitary dysfunction.