Isolated oculomotor nerve palsy caused by a mucocele of an aerated anterior clinoid process

Hopf-Jensen, Silke; Rubarth, O.; Ahe, I. von d.; Riis, P. Theut; Preuß, H.; Preiß, M.; Börm, Wolfgang; Müller‐Hülsbeck, Stefan

doi:10.1007/s00062-013-0211-4

Cited by 6 publications

(1 citation statement)

References 21 publications

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“… 1 2 There are 11 different pathological entities described so far on the ACP other than meningioma ( Table 1 ). 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33…”

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confidence: 99%

Anterior Clinoid Metastasis Removed Extradurally: First Case Report

2018

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Background We report a case of isolated metastasis on the anterior clinoid process (ACP) mimicking meningioma. Clinical Presentation A 58-year-old male presented with headaches, right-sided visual disturbances, and blurred and double vision. The cause of double vision was partial weakness of the right III nerve, resulting from compression of the nerve by “hypertrophied” tumor-involved right anterior clinoid. Medical history revealed two primary malignant tumors—male breast cancer and prostate cancer (diagnosed 6 and 18 months prior, respectively). The patient was treated with chemotherapy and showed no signs of active disease, recurrence, or metastasis. Postcontrast head magnetic resonance imaging (MRI) showed extra-axial well-bordered enhancing mass measuring 1.6 × 1.1 × 1 × 1 cm (anteroposterior, transverse, and craniocaudal dimensions) on the ACP, resembling a clinoidal meningioma. Extradural clinoidectomy with tumor resection was performed via right orbitozygomatic pretemporal skull base approach. Visual symptoms improved. Follow-up MRI showed no signs of tumor residual or recurrence. Conclusion This is the first case report of a metastasis of any kind on ACP. Metastasis should be included as a part of the differential diagnosis of lesions of the anterior clinoid. Extradural clinoidectomy is a safe and effective method in the treatment of these tumors.

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