Skull Scalloping Mimicking an Osteolytic Lesion in a Patient with Plasmacytoma

Case Report

Volume 6, Issue 9 (September Issue)

Skull Scalloping Mimicking an Osteolytic Lesion in a Patient with Plasmacytoma

Leonid L. Yavorkovsky^1* and Zhixi Li²

¹Oncology Division, Kaiser Permanente San Jose Medical Center 270 International Circle, San Jose, California, USA
²Radiology Department, Kaiser Permanente Oakland Medical Center, Oakland, California, USA

^*Corresponding author: Leonid L Yavorkovsky, Oncology Division, Kaiser Permanente San Jose Medical Center, San Jose, California, USA.
E-mail: Leonid.yavorkovsky@kp.org

Received: August 18, 2024; Accepted: August 30, 2024; Published: September 25, 2024

Citation: Yavorkovsky LL, Li Z. Skull Scalloping Mimicking an Osteolytic Lesion in a Patient with Plasmacytoma. Clin Image Case Rep J. 2024; 6(9): 417.

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Abstract

Bone scalloping refers to a particular pattern of localized bone erosion appearing as multi-curved, sharply marginated lucencies on radiographic images. This imaging finding indicates an indolent bone remodeling process, which can be caused by benign or malignant conditions. We describe a case of the bone scalloping caused by a giant arachnoid (pacchionian) granulation. Such granulations may simulate malignant osteolytic lesions on radiographic images and cause diagnostic challenges especially in patients with pre-existing malignancy such as plasmacytoma.

Keywords: Arachnoid granulation; Bone scalloping; Osseous lytic lesion; Myeloma; Plasmacytoma