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Endoscopic Endonasal Trans-sphenoidal Approach: Minimally Invasive Surgery for Pituitary Adenomas

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Published on: January 17, 2018

[Nonfunctioning suprasellar ectopic pituitary adenoma. A case report].

Gohei So¹, Tomoki Takeshita, Yoichi Morofuji

¹Department of Neurosurgery, Nagasaki University School of Medicine, 1-7-1 Sakamoto, Nagasaki 852-8501, Japan.

No Shinkei Geka. Neurological Surgery

|December 18, 2008

Summary

This case report details a rare nonfunctioning suprasellar ectopic pituitary adenoma in a 49-year-old man presenting with visual field defects. Surgical removal was challenging due to the tumor's attachment to the pituitary stalk.

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Area of Science:

Neuroendocrinology
Neurosurgery
Oncology

Background:

Ectopic pituitary adenomas are rare tumors arising outside the sella turcica.
Suprasellar ectopic pituitary adenomas are particularly uncommon, often presenting with mass effect symptoms.

Observation:

A 49-year-old male presented with a partial right visual field defect.
Neuroendocrinological tests revealed elevated adrenocorticotropic hormone and prolactin levels.
MRI demonstrated an enhancing suprasellar mass separate from a normal pituitary gland within the sella turcica.

Findings:

Histological examination confirmed a nonfunctioning pituitary adenoma in the suprasellar region.
The tumor was partially resected via craniotomy due to its adherence to the pituitary stalk.
This case highlights the diagnostic and surgical challenges of suprasellar ectopic pituitary adenomas.

Implications:

Reporting rare cases of ectopic pituitary adenomas aids in understanding their pathophysiology and clinical behavior.
Accurate diagnosis and surgical management are crucial for patients with these rare tumors.
Further research into the developmental origins and molecular characteristics of ectopic pituitary adenomas is warranted.