Parasellar tumors: suprasellar and cavernous sinuses

Area of Science:

• Neuroimaging
• Oncology
• Endocrinology

Background:

• The pituitary gland is a critical endocrine organ surrounded by complex neurovascular structures.
• Tumors in this region can cause significant hormonal dysfunction and neurological deficits.
• Accurate diagnosis relies on understanding the diverse pathologies and their typical imaging findings.

Purpose of the Study:

• To provide a comprehensive overview of tumors affecting the pituitary gland and surrounding areas.
• To describe the characteristic clinical presentation and imaging appearance of these lesions.
• To facilitate differential diagnosis by categorizing tumors based on their common anatomical locations.

Main Methods:

• Review of common and rare tumors involving the suprasellar, parasellar, and sellar regions.
• Discussion of imaging features (e.g., MRI, CT) for each tumor type.
• Categorization of lesions by their typical location, including craniopharyngiomas, gliomas, germ cell tumors, meningiomas, schwannomas, chordomas, and metastatic disease.

Main Results:

• Suprasellar lesions include craniopharyngiomas, optic/hypothalamic gliomas, germ cell tumors, and various cystic/solid masses.
• Parasellar tumors commonly involve the cavernous sinus, such as schwannomas and meningiomas.
• Sellar and adjacent areas can be affected by chordomas, metastases, meningiomas, and aneurysms.

Conclusions:

• Understanding the anatomical location is key to differentiating pituitary region tumors.
• Characteristic imaging findings aid in the diagnosis of specific tumor types.
• This review serves as a guide for radiologists and clinicians managing these complex pathologies.