Intracranial metastatic disease rarely involves the pituitary: retrospective analysis of 935 metastases in 155 patients and review of the literature.
We present a case report of a patient recently treated at our institution for an isolated non-small cell lung cancer metastatic lesion to the sella, report the lack of involvement of the pituitary gland in a large single-institution series of treated intracranial parenchymal metastases, and review the pertinent literature. We reviewed cranial imaging studies (CT and MRI) for 935 metastases in 155 patients treated at our institution over the previous 3 years for intracranial metastatic disease. Special attention was paid to the skull base to document the presence of any metastatic disease involving the pituitary gland, infundibular stalk, sella turcica (including anterior and posterior clinoids), or diaphragm sellae. We found no other involvement of the pituitary gland or other sellar structures by metastatic disease in this series. Intracranial metastatic disease rarely involves the pituitary gland and infundibular stalk parenchyma, suggesting that this structure may be safely omitted from the treatment field during WBRT and prophylactic cranial irradiation (PCI). This treatment approach should reduce the late sequelae of treatment to this critical organ.
Marsh
James C
JC
Department of Radiation Oncology, Rush University Medical Center, Chicago, IL, USA. james_c_marsh@rush.edu
Garg
Shalini
S
Wendt
Julie A
JA
Gielda
Benjamin T
BT
Turian
Julius V
JV
Herskovic
Arnold M
AM
D000368:Aged; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000556:secondary*; D002289:Carcinoma, Non-Small-Cell Lung / Q000150:complications; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010902:Pituitary Gland / Q000473:pathology*
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