Treatment
Medical Therapy
Intramuscular hemangiomas
Observation is appropriate for asymptomatic or mildly symptomatic hemangiomas of skeletal muscle and bone. If symptoms cannot be managed adequately by activity modification and nonnarcotic analgesics, further treatment may be considered. Embolization may be used to provide symptomatic relief of intramuscular hemangiomas.
When surgical excision is planned, embolization also may be used preoperatively to decrease intraoperative blood loss and postoperative recurrence.21 Excision of symptomatic intramuscular hemangiomas can provide permanent relief. However, because complete excision is required for long-lasting satisfactory results, this treatment option generally is restricted to hemangiomas contained within a single muscle belly. Even so, complete resection is not always possible; when incompletely resected, hemangiomas nearly always recur. In addition, surgery can be associated with large-volume blood loss, even when preoperative embolization is employed.
Laser knife excision of hemangiomas is a technique developed to better control intraoperative bleeding. Preoperative ultrasound-guided hookwire localization may aid in defining the extent of a hemangioma during excision. Radiation has been used to treat soft-tissue hemangiomas in surgically inaccessible or potentially dangerous sites.
Synovial hemangiomas
Local pedunculated synovial hemangiomas are removed surgically, often through an arthroscope. More diffuse lesions may be treated with intra-articular low-dose radiation therapy, open excision, or both when sufficiently symptomatic.
Osseous hemangiomas
Hemangiomas of bone rarely require treatment. If symptoms are significant enough to warrant consideration of treatment, it is important to confirm the diagnosis, as more aggressive neoplasms (eg, metastatic renal cell carcinoma) may masquerade as hemangioma.
Radiation may be considered for symptomatic hemangiomas in surgically inaccessible sites, such as vertebral hemangiomas.22 However, some authors have found that selective arterial embolization is safer and more effective in the treatment of symptomatic vertebral lesions.
Open excision of bone hemangiomas rarely is indicated. One such uncommon indication is to decompress the spinal cord when a vertebral hemangioma is causing neurologic deficits.
Hemangiomatosis
Chemotherapy has been used in the treatment of extensive hemangiomatosis, particularly when the vascular proliferation is life or limb threatening.
Gorham disease
Radiation may help control the progression and symptoms of Gorham disease, and steroids have been used with variable success.
Kasabach-Merritt syndrome
Kasabach-Merritt syndrome is treated with supportive measures, particularly transfusion of platelets.23 Steroids also have been used in the treatment of Kasabach-Merritt syndrome, with some success.
Good results of treatment with pentoxifylline were reported by de Prost et al.24 Pentoxifylline acts to restore blood flow and seems to possess antithrombotic activity as well.
Pharmacologic management with interferon alfa-2a has been attempted at as well. Radiation therapy has had variable success. Surgical resection of the hemangioma often is difficult.
Preoperative Details
Angiography is an important aspect of preoperative planning when the vascular supply of the lesion is in question and when preoperative embolization is considered. Embolization of high-flow lesions may be performed by interventional radiology to decrease intraoperative blood loss and to decrease the risk of postoperative recurrence. Low-flow lesions are not treatable by embolization. Instead, sclerosing agents may be used to decrease blood flow through low-flow hemangiomas.
Intraoperative Details
Surgical excision attempts to achieve a marginal border unless the hemangioma is contained within a single muscle belly that can be excised completely to achieve a wide margin. The rate of local recurrence following wide excision has been reported as less than 10%, whereas local recurrence rates after marginal excision range from 25% to much higher. Meticulous hemostasis is essential in the prevention of postoperative hematoma.
Postoperative Details
Postoperatively, the surgical site is wrapped in a compressive dressing. The patient is required to maintain a minimal level of activity. Both of these measures are instituted to prevent the occurrence of postoperative hematoma.
Follow-up
Follow-up is required to assess symptomatic relief and to monitor for possible recurrence.
For excellent patient education resources, visit eMedicine's Skin, Hair, and Nails Center. Also, see eMedicine's patient education article Bruises.
Complications
In both intramuscular and osseous hemangiomas, hemorrhage can occur spontaneously during biopsy or during surgical resection; such hemorrhages can be massive. Furthermore, hemangiomas typically recur following incomplete surgical excision. Some large hemangiomas may result in shunting of the blood to a degree significant enough to cause congestive heart failure.
Rarely, cord compression and neurologic deficits can result from vertebral hemangiomas. Approximately 30% of patients with Kasabach-Merritt syndrome die from hemorrhage or infection. Osteomalacia is an uncommon complication that has been associated with hemangioma.
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Further Reading
Keywords
hemangioma, benign vascular tumor, senile hemangioma, cherry hemangioma, strawberry nevus, visceral hemangioma, intramuscular hemangioma, hemangioma of the bone, hemangiomatosis, skeletal-extraskeletal angiomatosis, vertebral hemangioma, Kasabach-Merritt syndrome, tumor-induced osteomalacia, Gorham disease, disappearing bone disease, osteolysis, hemangiomatous disease, enchondromatosis, Maffucci syndrome, synovial hemangioma, osseous hemangioma
Treatment: Hemangioma