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Given the rarity of intracranial plasmacytomas, these lesions are frequently misdiagnosed as pituitary adenomas. We report on the distinguishing characteristics of sellar plasmacytomas from cases in the literature and our experience. A literature search was conducted to collect all documented cases of a plasmacytoma originating in the sellar region. Patient characteristics, medical history, presentation, tumor characteristics, and survival data were collected. An additional case from our institution not previously reported was included. Thirty-one patients with sellar plasmacytomas were studied. Presenting symptoms were most commonly headache (68%), diplopia (65%) and visual field disturbances (10%). Fifteen patients (48%) were initially suspected of having a pituitary adenoma. Pathologic diagnosis of plasmacytoma preceded a finding of multiple myeloma in 14 cases (45%). Thirty patients (90%) had surgical intervention. Adjuvant therapy consisted of radiotherapy for twenty-five patients (81%) and chemotherapy for sixteen (52%). Tumor recurrence was reported for 7 cases (23%). Nine deaths were reported (23%). We demonstrate that cranial nerve involvement is far more common in sellar plasmacytomas than conventional pituitary adenomas. Given the successful management of these tumors with radiotherapy, such deficits, particularly in patients with known multiple myeloma, should impact the diagnostic workup and treatment considerations.
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http://dx.doi.org/10.1016/j.jocn.2018.01.022 | DOI Listing |
Cancers (Basel)
August 2025
Department of Neurosurgery, University of Ulm, Lindenallee 2, 89312 Günzburg, Germany.
: Pituitary tumors account for over 90% of all sellar region masses. However, a spectrum of rare neoplastic, inflammatory, infectious, and vascular lesions-benign and malignant-can arise in the intra- and parasellar compartments and clinically and radiologically mimic PitNETs. We report a cohort of 47 such rare and cystic midline intracranial lesions, emphasizing their distinctive morphological, clinical, and imaging features and the personalized treatment strategies applied.
View Article and Find Full Text PDFDiagn Cytopathol
May 2025
Department of Neurosurgery, Medical University of South Carolina, Charleston, South Carolina, USA.
Solitary plasmacytomas are localized single tumors of monoclonal plasma cells that occur in two variants: solitary plasmacytoma of bone and extraosseous plasmacytoma. Solitary plasmacytoma of bone accounts for only 1%-2% of plasma cell lesions, and extraosseous plasmacytoma is also approximately 1%. These are both very uncommon at the skull base.
View Article and Find Full Text PDFSurg Neurol Int
January 2024
Department of Neurosurgery, University of Puerto Rico, San Juan, United States.
Cancer Treat Res Commun
December 2021
Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School & Hwasun Hospital, Hwasun, South Korea. Electronic address:
Plasmacytoma in the sellar region is an extremely rare occurrence. Sellar plasmacytoma is often difficult to differentiate from pituitary tumors both clinically and radiologically. The occurrence of cranial nerve palsy, the preservation of pituitary hormone function, the presence of sellar floor destruction, and better contrast enhancement are regarded as the differentiating factors between sellar plasmacytoma and pituitary tumors.
View Article and Find Full Text PDFJ Neuroophthalmol
December 2021
Departments of Neurosurgery (DBA, SES, JDT), Ophthalmology and Visual Sciences (CAA, JDT), Radiology, Division of Neuroradiology (HAP), Otolaryngology, Head and Neck Surgery (SES), and Neurology University of Michigan (SES, JDT), Ann Arbor, Michigan.
Background: Pituitary adenomas and nonadenomatous lesions in the sellar region may be difficult to distinguish by imaging yet that distinction is critical in guiding management. The nature of the diagnostic errors in this setting has not been well documented.
Methods: Two neurosurgeons and 2 neuroradiologists of differing experience levels viewed deidentified MRIs of 18 nonadenomatous sellar lesions and 21 adenomas.