What is a soft tissue hemangioma?
A hemangioma is a benign tumor in which there is an increased number of normal or abnormal appearing vessels. 7. It is the most common soft tissue tumor of infancy and childhood and one of the most common soft tissue tumors overall, comprising approximately 7% of all benign tumors.
Is hemangioma a soft tissue tumor?
Hemangiomas are the most frequently diagnosed soft-tissue neoplasm in children.
What does a hemangioma look like on an MRI?
MR imaging findings in hemangioma are frequently diagnostic. On T2-weighted images, hemangiomas generally appear as multiple high-signal-intensity lobules that resemble a bunch of grapes (,,,,,Fig 12c). This appearance is due to cavernous or cystic vascular spaces containing stagnant blood.
Can an MRI detect hemangioma?
Magnetic resonance imaging (MRI) can be particularly accurate for diagnosing a liver hemangioma. Even without contrast, hemangiomas have a pathognomonic appearance on MRI in most cases.
Can hemangioma be misdiagnosed?
Patients with intramuscular hemangiomas usually have no specific symptoms; therefore, this tumor is often misdiagnosed. When a satisfactory treatment effect is not obtained, the diagnosis should be reassessed in a timely manner.
Are there MR imaging studies of soft tissue hemangiomas?
MATERIALS AND METHODS. We retrospectively reviewed MR imaging studies of 22 patients with soft-tissue hemangiomas and 22 patients with malignant soft-tissue masses. Images were reviewed and agreement reached by a consensus interpretation of two observers and by an independent observer.
What are the characteristics of a MRI hemangioma?
MRI Hemangiomas are typically well-defined, lobulated and heterogeneous with no features of local invasion. While many sequences show a rather heterogeneous signal mass certain signal characteristics tend to dominate. T1
When was Mr imaged for peripheral hemangiomas?
The MR images of 22 patients with peripheral hemangiomas and 22 patients with primary malignant soft-tissue masses were retrospectively reviewed. The patients were consecutively imaged at our institution between 1992 and 1997 for hemangiomas and between 1995 and 1997 for the malignant soft-tissue masses.
Where is the soft tissue cavernous hemangioma located?
The pain was exacerbated by physical exertion. She could point to a discrete region on the anteromedial aspect of the right thigh where the pain was located. However, no palpable mass, overlying skin discoloration, or soft-tissue swelling was noted at clinical examination.