Natural evolution of desmoplastic fibroblastoma on magnetic resonance imaging: A case report

Yusaku Kamata, Ukei Anazawa, Hideo Morioka, Takeshi Morii, Keiko Miura, Makio Mukai, Hiroo Yabe, Yoshiaki Toyama

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Introduction. Desmoplastic fibroblastoma (collagenous fibroma) is a recently described tumor thought to arise predominantly from subcutaneous tissue or skeletal muscle. The natural evolution of this tumor on magnetic resonance imaging has never been described, to the best of our knowledge. We herein report a case of desmoplastic fibroblastoma arising in the thigh and show the longitudinal magnetic resonance imaging findings. Case presentation. A 60-year-old Japanese man presented with swelling of the medial side of his right thigh, and he complained of nighttime pain and slight tenderness. Magnetic resonance imaging demonstrated a 4 × 4 cm mass in the right thigh. Open biopsy was performed. The mass was diagnosed histologically as a benign fibrous tumor, and we maintained follow-up without surgical therapy. After one year, magnetic resonance imaging showed an increase in tumor size to 4 × 5 cm, but the histologic findings were the same as those obtained one year earlier. Resection was performed with narrow surgical margins. Pathologic diagnosis was desmoplastic fibroblastoma. Two years after surgery, the patient is free from pain and shows no signs or symptoms of recurrence. Conclusion: The natural evolution of desmoplastic fibroblastoma is characterized by no changes in patterns on magnetic resonance imaging despite increasing size. This finding is clinically helpful for distinguishing desmoplastic fibroblastoma with increasing pain from the desmoid tumor.

Original languageEnglish
Article number139
JournalJournal of Medical Case Reports
Volume5
DOIs
Publication statusPublished - 2011 Apr 11

ASJC Scopus subject areas

  • Medicine(all)

Fingerprint Dive into the research topics of 'Natural evolution of desmoplastic fibroblastoma on magnetic resonance imaging: A case report'. Together they form a unique fingerprint.

  • Cite this

    Kamata, Y., Anazawa, U., Morioka, H., Morii, T., Miura, K., Mukai, M., Yabe, H., & Toyama, Y. (2011). Natural evolution of desmoplastic fibroblastoma on magnetic resonance imaging: A case report. Journal of Medical Case Reports, 5, [139]. https://doi.org/10.1186/1752-1947-5-139