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Tumors metastatic to the pituitary gland are uncommon,and they are difficult to differentiate radiologically from pituitary adenomas.We retrospectively reviewed the MR examinations and clinical records of nine patients with radiographic and/or clinical evidence of pituitary metastases.The most common clinical symptoms included cranial nerve deficits(67%)and/or pituitary dysfunction(30%).Both occurred acutely and progressed rapidly over 1-4 weeks in all patients.Cranial nerve involvement was predominantly multiple(83%),a reflection of involvement of the adjacent cavernous sinus.In contrast to previous reports indicating a predilection for symptoms related to posterior lobe involvement(71%),our study shows that symptoms related to the anterior lobe are as common as posterior lobe symptoms.Useful MR findings included a relatively small, enhancing pituitary lesion( |
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carcinoma of breast
carcinoma of lung
cavernous sinus
cavernous sinus,lesion of
cranial nerve palsies
cranial neuropathy
cranial neuropathy,multiple
gadolinium
hypopituitarism
MRI
MRI,abnormal
MRI,contrast enhanced
neoplasm,metastatic to CNS
neoplasm,pituitary
pituitary
pituitary,insufficiency of
pituitary,metastasis to
suprasellar lesion
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