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Angioleiomyomas of the Extremities and Trunk: An Observational Study
Rebecca H Chun1, Akriti Khanna1, Katrina N Glazebrook1
1Department of Radiology, Mayo Clinic, Rochester, Minnesota, USA.
Academic Radiology
|December 14, 2024
Summary
Angioleiomyomas are benign tumors originating from blood vessels. This study highlights their imaging features in the trunk and extremities, aiding in diagnosis.
Area of Science:
- Radiology
- Oncology
- Pathology
Background:
- Angioleiomyomas are benign perivascular tumors.
- They can occur in various body parts, including the trunk and extremities.
- Understanding their imaging characteristics is crucial for diagnosis.
Purpose of the Study:
- To review the history and imaging features of angioleiomyomas in the trunk and extremities.
- To identify key diagnostic indicators for these tumors.
Main Methods:
- Retrospective review of 191 patients with pathologically proven angioleiomyomas of the trunk or extremities.
- Analysis of clinical information and available imaging (radiography, ultrasound, CT, MRI).
Main Results:
- 88.9% of patients experienced pain; most lesions were in the lower extremities.
- Imaging revealed nonspecific soft tissue masses (27.4%), hypoechoic on ultrasound with internal vascularity (93.8%).
- Tumors were typically T1 isointense, T2 hyperintense, and enhancing, often adjacent to blood vessels (83.1%).
Conclusions:
- Key imaging features include soft tissue mass adjacent to a blood vessel, hypoechoic ultrasound appearance with vascularity, and characteristic MRI signal intensities.
- Recognizing these features can help differentiate angioleiomyomas from other soft tissue tumors.
- This study provides valuable insights for radiologists and clinicians managing these rare tumors.
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