Tag: sphenoid sinus

The endoscopic endonasal transsphenoidal approach (EEA) to treat sellar, parasellar, and suprasellar tumours continues to gain increased significance. Due to the close proximity of the sphenoid sinus to the carotid artery and the optic canal, it is very important for surgeons to know the anatomical features and variations of the sphenoid sinus as relevant to EEA...

Ectopic acromegaly is a very rare clinical entity occurring in less than 1% of acromegalic patients. In most cases it is caused by GHRH or  rarely GH–secreting neoplasms. Even rarer are ectopic pituitary adenomas located in the sphenoid sinus or nasopharynx that originate  from pituitary remnants in the craniopharyngeal duct...

The anterior clinoid process (ACP) is an intracranial, medial extension of the lesser sphenoid wing and represents a roof to the anterior segment of the cavernous sinus [16]. The process projects posteriorly and medially in the middle cranial fossa and constitutes a boundary of the caroticoclinoid foramen if the ACP is merged with the top of the medial clinoid process [10]. The ACP is closely related to many vital neurovascular structures, including the internal carotid artery (ICA) adjacent to the medial and posterior aspect of the ACP [8, 22]...