Abstract.
Osteolytic lesions can be seen in various diseases. We present a rare case of symptomatic hypertrophic pacchionian granulation mimicking bone tumor in the calvaria. A 50-year-old woman suffered from a previous VII cranial nerve peripheral paresis accompanied by headache. A plain radiograph revealed a punched-out paramedial occipital lesion. Precontrast-enhanced computed tomographic scans demonstrated a hypodense mass, with a defect of both tables of the left occipital bone. Magnetic resonance imaging (MRI) demonstrated a hypointense mass on the T1-weighted image and isointense to cerebrospinal fluid on the T2-weighted image, with capsule-like contrast enhancement by gadolinium. A biopsy was performed. Histologically, hypertrophic pacchionian granulation was diagnosed. The patient has had no growth for 2 years. This case suggests the need to include hypertrophic pacchionian granulation in the differential diagnosis of punched-out lesions.
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Received: 2 December 1997; in revised form: 24 June 1998 / Accepted: 8 October 1998
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Celli, P., Cervoni, L. & Quasho, R. An asymptomatic hypertrophic pacchionian granulation simulating osteolytic lesion of the calvaria. Neurosurg Rev 22, 149–151 (1999). https://doi.org/10.1007/s101430050052
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DOI: https://doi.org/10.1007/s101430050052