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Vertebral hemangiomas or haemangiomas (VHs) are a common vascular lesion found within the vertebral body of the thoracic and lumbar spine.These are predominantly benign lesions that are often found incidentally during radiology studies for other indications and can involve one or multiple vertebrae.
The polka dot sign is a radiological finding most commonly observed on axial computed tomography (CT) or magnetic resonance imaging (MRI) scans of the spine. [1] It is a hallmark feature of vertebral hemangiomas, a benign vascular tumor of the vertebral body. The sign refers to the appearance of multiple small, dot-like areas of sclerosis or ...
It refers to a striated or vertically oriented linear pattern seen on imaging, resembling the appearance of corduroy fabric. [1] This sign is most commonly identified on lateral radiographs or magnetic resonance imaging (MRI) of the spine and is an important diagnostic marker for benign conditions such as vertebral hemangiomas.
A hemangioma or haemangioma is a usually benign vascular tumor derived from blood vessel cell types. The most common form, seen in infants, is an infantile hemangioma , known colloquially as a "strawberry mark", most commonly presenting on the skin at birth or in the first weeks of life.
The increasing use of MRI, often during diagnostic work-up for back or lower extremity pain, has led to a significant increase in the number of incidental findings that are most often clinically inconsequential. The most common include: [22] vertebral hemangioma; fibrolipoma (a lipoma with fibrous areas) Tarlov cyst
[1] [5] MRI is the imaging of choice for spinal tumors. [1] The MRI protocol that is most frequently used includes T1-weighted and T2-weighted sequences, including contrast enhanced T1-weighted sequences. [1] Short-TI Inversion Recovery (STIR) is also commonly added to the MRI protocol for detecting spinal cord tumors. [1]
Small hemangioma on the scalp of a two-year-old female. Gradient-echo T2WI magnetic resonance imaging is the most sensitive method for diagnosing cavernous hemangiomas. [21] MRI is such a powerful tool for diagnosis that it has led to an increase in diagnosis of cavernous hemangiomas since the technology's advent in the 1980s. [16]
Magnetic resonance myelography (MR myelography or MRI myelography) is a noninvasive medical imaging technique that can provide anatomic information about the subarachnoid space. It is a type of MRI examination that uses a contrast medium and magnetic resonance imaging scanner to detect pathology of the spinal cord , including the location of a ...