Clinical, Radiological, and Histopathological Characteristics of Periosteal Chondrosarcoma with a Focus on the Frequency of Medullary Invasion

Makoto Nakagawa, Makoto Endo, Yosuke Susuki, Nobuhiko Yokoyama, Akira Maekawa, Akira Nabeshima, Keiichiro Iida, Toshifumi Fujiwara, Nokitaka Setsu, Tomoya Matsunobu, Yoshihiro Matsumoto, Ryohei Yokoyama, Yuichi Yamada, Kenichi Kohashi, Hidetaka Yamamoto, Yoshinao Oda, Yukihide Iwamoto, Yasuharu Nakashima

Research output: Contribution to journalArticlepeer-review

Abstract

Periosteal chondrosarcoma is an extremely rare malignant cartilage-forming tumour that originates from the periosteum and occurs on the surface of bone. Often, it is difficult to distinguish periosteal chondrosarcoma from other tumours, and reports in the literature are scarce. This study aims to investigate the characteristics of periosteal chondrosarcoma, focusing particularly on medullary invasion. Among 33 periosteal cartilaginous tumours, seven patients with pathologically proven periosteal chondrosarcoma were identified retrospectively. The average tumour size was 5.4 cm in the long axis; two tumours were smaller than 3.0 cm. Six tumours were resected with a wide margin, and the remaining tumour had a marginal margin. Histology revealed that six tumours (85.7%) had invaded the medullary cavity; three of these did not show invasion into the medullary cavity on MRI evaluation. Neither local recurrence nor metastasis was observed among these patients. The frequency of invasion of the medullary cavity was higher than that reported previously. The recommended treatment for periosteal chondrosarcoma is resection with an adequate margin. Therefore, surgeons should consider the possibility of medullary invasion when attempting to achieve a histologically negative margin, even if the tumour does not show invasion into the medullary cavity on MRI.

Original languageEnglish
Article number2062
JournalJournal of Clinical Medicine
Volume11
Issue number7
DOIs
Publication statusPublished - Apr 1 2022

All Science Journal Classification (ASJC) codes

  • Medicine(all)

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