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Hemangiomas of the fingers: MR imaging evaluation
N H Theumann1, J Bittoun, S Goettmann
1Department of Radiology B, CHU Cochin, AP-HP-Université Paris V, 27 rue du Fg Saint-Jacques, 75014 Paris, France.
Purpose:
To report the magnetic resonance (MR) imaging features of finger hemangiomas.
Materials And Methods:
Sixteen patients clinically suspected of having hemangioma of the finger underwent 1.5-T MR imaging with a customized local gradient coil. The location, size, margins, signal intensity, and enhancement patterns of the lesions were noted. In accordance with the literature on MR imaging of deep hemangiomas, the authors' findings could be divided into those with typical features-that is, high signal intensity at T1- and T2-weighted imaging, lobulated appearance, strong enhancement, and heterogeneous pattern with flow void artifacts-and those with atypical features. The reference standard was surgery (n = 12) or clinical outcome (n = 4).
Results:
One posttraumatic hematoma was excluded. Most lesions were in the fingertip (n = 10), with involvement of the nail bed and/or the pulp (n = 5). Hemangiomas were classified as typical in ten cases and atypical in five. The mean size of typical lesions was larger than that of atypical lesions. The unique imaging features of atypical hemangiomas included a masslike appearance, which was either homogeneous with diffuse enhancement-suggestive of hypervascularity (n = 2)-or heterogeneous with poor enhancement (n = 3).
Conclusion:
MR imaging characteristics of finger hemangiomas can be classified as typical or atypical. Knowledge of both patterns can be helpful in the distinction of soft-tissue abnormalities at this location.
Insights
Magnetic resonance (MR) imaging reveals typical and atypical features of finger hemangiomas. Understanding these patterns aids in differentiating soft-tissue abnormalities in the finger.
Area of Science:
- Radiology
- Oncology
- Dermatology
Background:
- Hemangiomas are common benign vascular tumors.
- Accurate diagnosis of finger hemangiomas is crucial for appropriate management.
- Magnetic resonance (MR) imaging offers detailed visualization of soft-tissue lesions.
Purpose of the Study:
- To characterize the magnetic resonance (MR) imaging features of finger hemangiomas.
- To differentiate typical and atypical MR imaging patterns of these lesions.
Main Methods:
- Sixteen patients with suspected finger hemangiomas underwent 1.5-T MR imaging.
- Lesion characteristics including location, size, signal intensity, and enhancement patterns were analyzed.
- Findings were classified as typical or atypical based on established criteria and surgical/clinical outcomes.
Main Results:
- Ten hemangiomas showed typical MR imaging features (high T1/T2 signal, lobulated, strong enhancement, flow voids).
- Five hemangiomas presented with atypical features (mass-like, homogeneous/heterogeneous enhancement).
- Typical lesions were generally larger than atypical ones.
Conclusions:
- MR imaging findings of finger hemangiomas can be categorized into typical and atypical patterns.
- Recognizing these distinct MR imaging characteristics is valuable for diagnosing soft-tissue abnormalities in the finger.