Case Report: Inflammatory myofibroblastoma of the right forearm in an adult male: a clinical report.

Authors

Lanlan Li, Xiang Chang, Zhishuai Hu, Min Wang, Xiaoguang Huo, Wenzhe Xu

Published in

Frontiers in oncology. Volume 16. Pages 1737213. Epub Jun 03, 2026.

Abstract

Inflammatory myofibroblastoma (IMT) is rare, and cases located in the limbs are even rarer. We report a case of a 69-year-old Chinese male with a mass in the right forearm. It was surgically removed, and the pathology showed inflammatory myofibroblastoma. This case is reported due to its rare location. The purpose of this case report is to highlight the uniqueness of the case, collect and analyze the imaging characteristics of the disease, and provide assistance for daily clinical diagnosis and treatment.
A 69-year-old male patient was reported with an inflammatory myofibroblastoma in the right forearm. A superficial ultrasound revealed a hypoechoic mass in the subcutaneous tissue of the right forearm. MRI showed a space-occupying lesion in the proximal subcutaneous area of the right forearm, and contrast-enhanced scanning was recommended for further evaluation. Postoperative pathological findings showed a malignant tumor of soft tissue origin in the right forearm, and immunohistochemistry suggested inflammatory myofibroblastoma.
In summary, Inflammatory myofibroblastic tumor (IMT) in adults is a rare condition. When routine ultrasound or imaging detects limb masses, this disease should be considered.

PMID:
42318475
Bibliographic data and abstract were imported from PubMed on 19 Jun 2026.

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