Warning: fopen(/home/virtual/jptm/journal/upload/ip_log/ip_log_2022-12.txt): failed to open stream: Permission denied in /home/virtual/lib/view_data.php on line 83 Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/virtual/lib/view_data.php on line 84 Journal of Pathology and Translational Medicine
Skip Navigation
Skip to contents

JPTM : Journal of Pathology and Translational Medicine



Page Path
HOME > J Pathol Transl Med > Volume 42(4); 2008 > Article
Case Report A Well-Differentiated Extraskeletal Osteosarcoma: A Case Report.
Jung Wook Yang, Dae Hyun Song, Dong Hee Kim, Gyung Hyuck Ko
Journal of Pathology and Translational Medicine 2008;42(4):247-250
DOI: https://doi.org/
  • 14 Download
  • 0 Crossref
  • 0 Scopus
Departments of Pathology and Orthopedics1, Gyeongsang National University School of Medicine, Jinju, Korea. gyunghko@gnu.ac.kr

A well-differentiated extraskeletal osteosarcoma is very rare, and only seven cases have been reported in the English language clinical literature. We report an additional case of this rare tumor. A 71-year-old man had noticed a mass in the left pubic area for ten years. A CT scan demonstrated the presence of a lobulated calcified mass within the soft tissue. A 5 cm-sized well-circumscribed mass was excised. Histologically the tumor was composed of mature collagenous tissue and bony trabeculae rimmed by osteoblasts. After 43 months, the tumor recurred at the same site and was re-excised. The re-excised tumor contained focal areas of higher cellularity and atypism. We believe that this is the first case of well-differentiated extraskeletal osteosarcoma reported in Korea.

Related articles

JPTM : Journal of Pathology and Translational Medicine