2024年11月7日 · Pituitary macroadenomas are the most common suprasellar mass in adults, and responsible for the majority of transsphenoidal hypophysectomies. They are defined as pituitary adenomas greater than 10 mm in size and are approximately twice as common as pituitary microadenomas .

2024年11月7日 · Pituitary macroadenomas are the most common suprasellar mass in adults, and responsible for the majority of transsphenoidal hypophysectomies. They are defined as pituitary adenomas greater than 10 mm in size and are approximately twice as common as pituitary microadenomas .

2023年5月22日 · Pituitary adenomas or pituitary neuroendocrine tumors (PitNET) are primary neuroendocrine tumors that occur in the pituitary gland and are one of the most common intracranial neoplasms. Depending on their size they are broadly classified into: pituitary microadenoma: <10 mm in size. pituitary macroadenoma: >10 mm in size

2024年7月17日 · Pituitary microadenomas are a minority of all pituitary adenomas but can pose imaging and management challenges on account of their size and protean clinical presentations. By definition, a microadenoma is less than 10 mm in size.

The pituitary fossa is expanded and shows a bony defect in its floor. A large mass occupies the remodeled sella and extends inferiorly into the sphenoid sinus and superiorly into the suprasellar cistern.

Pituitary macroadenomas are the most common suprasellar mass in adults, and responsible for the majority of transsphenoidal hypophysectomy. On imaging they usually present as a solid tumor with an attenuation similar to brain (30-40 HU) …

This case illustrates appearances consistent with hemorrhage into a pituitary macroadenoma. It would be interesting to know if the patient presented with sudden headache/visual loss to suggest classic pituitary apoplexy.

This represents a case of a pituitary macroadenoma. Based on the clinical presentation of the patient, a computed tomography scan of the head was performed, revealing a suprasellar mass. MRI confirmed a pituitary mass with suprasellar and lobular extension. A transsphenoidal resection of the mass was chosen as treatment for this patient.

Prolactinomas make up the majority of pituitary macroadenomas and are fortunately often responsive to medical management. In cases such as this one where the tumor is refractory to medical management, of if there is significant compression of the optic apparatus, then surgical resection is necessary.

2023年5月22日 · Pituitary adenomas or pituitary neuroendocrine tumours (PitNET) are primary neuroendocrine tumours that occur in the pituitary gland and are one of the most common intracranial neoplasms. Depending on their size they are broadly classified into: pituitary microadenoma: <10 mm in size. pituitary macroadenoma: >10 mm in size