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J Cancer Res Ther. 2015 Jul-Sep;11(3):646. doi: 10.4103/0973-1482.137999.

Extensive osteolytic skull base amyloidoma simulating malignancy: A rare pseudotumor producing a diagnostic dilemma.

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Department of Pathology, Govind Ballabh Pant Hospital, New Delhi, India.


Although amyloidomas are quite well-known, intracranial, and especially skull base lesions have been rarely reported. Extensive lesions in the skull base frequently simulate malignancy clinicoradiologically. Diagnosis of these lesions is important as they offer a favorable prognosis. We describe a large infiltrating osteolytic skull base tumor-like lesion in a 45-year-old male without evidence of associated plasma cell dyscrasia. Squash smears and histopathology revealed a plasma cell-rich lesion with abundant amyloid, confirming amyloidoma. To conclude, amyloidoma of the skull base is a rare tumor-like lesion, with timely diagnosis and management offering a good prognosis.

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