Aggressive vertebral hemangiomas in asymptomatic patients: A review.

BACKGROUND: Hemangioma is the most common benign tumor of the spine. Most patients are asymptomatic, but some lesions can become aggressive, leading to spinal compression. Here, we reviewed the natural history and treatment of aggressive hemangiomas in asymptomatic patients.
METHODS: An electronic review of the literature was performed regarding the diagnosis/treatment modalities for asymptomatic aggressive hemangiomas of the spine utilizing the Medline (PubMed) and Google Scholar databases.
RESULTS: We selected four articles describing the diagnosis/management of four cases of aggressive, asymptomatic hemangiomas in patients averaging 11.25 ± 2.36 years of age. Three of the four patients were females, and all were followed an average of 36.5 ± 25 months. Notably, two of four patients required emergency surgery.
CONCLUSION: There is a paucity of the literature regarding the diagnosis and optimal therapeutic management of aggressive hemangiomas in asymptomatic patients, half of whom may present with acute neurological deterioration warranting emergency surgery. Copyright:

INTRODUCTION

Hemangiomas are the most common benign tumors of the spine constituting 2–3% of all vertebral tumors. Most are located in the thoracic spine, with multi-level involvement in up to 30% of cases. Only 1% of hemangiomas are symptomatic (e.g., with back pain). Moreover, few result in significant myelopathy/compressive symptoms).[1,4,5]

Various treatment modalities include ethanol embolizations, radiotherapy, vertebroplasty, decompression, and/or spondylectomy.[4]

Here, we performed a systematic review of the natural history and treatment of aggressive hemangiomas in asymptomatic patients.

MATERIALS AND METHODS

We utilized the Medline (PubMed) and Google Scholar databases to study the history/treatment of asymptomatic aggressive hemangiomas (e.g., natural history longer than 12 months) [Table 1].

Table 1:

Search strategy of this review.

Only 4 of 89 articles met the inclusion criteria for this the study [Table 2].[2,3,5,6]

Table 2:

Four articles for patients with aggressive hemangiomas.

Patients undergoing surgery, embolizations, or radiotherapy, were excluded from the study.

Four patients evaluated with aggressive hemangiomas

We identified four children averaging 11.25 years of age, including 3 females and 1 male, with aggressive hemangiomas followed for an average interval of 36.5 months.

Of the four initially asymptomatic patients, two later required emergent surgery within an average follow-up period of 28 months.[3,6]

DISCUSSION

The natural history for aggressive hemangiomas was described by four authors and involved just four patients. Of interest, two patients remained asymptomatic following their diagnosis for between 18 months and 6 years, while the other two required emergency surgery (at 20–36 months).

Hernalsteen et al. reported a 13-year-old female with T12 and L4 aggressive hemangiomas, within the next 6 years, these lesions showed significant shrinkage and neither became symptomatic or required intervention[2] [Table 2].

Jha and Choudhary described the natural history of an 11-year-old female with back pain, due to a T12 vertebral hemangioma treated with bracing alone.[3] However, within 20 months, she developed spinal cord compression warranting surgical decompression [Table 2].[3]

In a third case, Pretell-Mazzini et al. described a 13-year-old female with low back pain and an aggressive L1 hemangioma; suddenly, 3 years later, she acutely presented with a cauda equina syndrome requiring emergency surgery [Table 2].[5]

In the fourth case (e.g., 4th study), Uzunaslan et al. described using propranolol to treat T5 aggressive hemangioma.[6] Patient 8 years of age, without epidural invasion, improved within 2 months. On repeat magnetic resonance imaging scan, 18 months later, the lesion did not decrease in size[6] [Table 2].

CONCLUSION

There is little information to determine the optimal treatment for initially asymptomatic aggressive vertebral hemangiomas. However, as noted in this series of four patients, two went on to demonstrate acute neurological deterioration 20–36 months following this diagnosis.