Subperiosteal Schwannoma
of Pelvis- A Rare Case and
Review of Literature
Published: October 1, 2016 | DOI: https://doi.org/10.7860/JCDR/2016/20537.8687
Devendra Lakhotia, Sunil Jeph, Swati Sharma
1. Assistant Professor, Department of Orthopaedics, Institute for Medical Sciences and Research Centre, Jaipur National University,
Jagatpura, Jaipur, Rajasthan, India.
2. Senior Resident, Department of Orthopaedics, Institute for Medical Sciences and Research Centre, Jaipur National University, Jagatpura, Jaipur, Rajasthan, India.
3. Junior Resident, Department of Medicine, Holy Family Hospital, New Delhi, India.
Correspondence Address :
Dr. Devendra Lakhotia,
Assistant Professor, Department of Orthopaedics, Institute for Medical Sciences and Research Centre,
Jaipur National University, Jagatpura, Jaipur-302017, Rajasthan, India.
E-mail: drdevendra.ortho@gmail.com
Abstract
Schwannoma are benign tumours of the nerve sheath. They are commonly found in the soft tissue, but its presence in the bone is extremely rare. We herein present a case of 34-year-old man with two adjacent pelvic subperiosteal schwannomas. Computed Tomography (CT) scan showed osseous pressure erosion and Magnetic Resonance Imaging (MRI) showed two cystic signal intensity lesions, one near superior aspect of right posterior iliac wing and another inferior to it with adjacent cortical pressure erosion. The tumour was excised en bloc and on histopathological examination, the diagnosis was confirmed as subperiosteal schwannoma. To our knowledge, this is the first case report of subperiosteal schwannoma involving the pelvis. When a surface cystic lesion is encountered, subperiosteal schwannoma should be considered as a possible differential diagnosis.
Keywords
Benign tumours, Nerve sheath, Posterior pelvis, Sacroiliac joint