Spinal haemangioblastoma

Spinal haemangioblastomas are the third most common intramedullary spinal neoplasm, representing 2-6% of all intramedullary tumours 1,4,7.

This article specifically relates to spinal hemangioblastomas. For a discussion on intracranial hemangioblastomas and a general discussion of the pathology refer to the main article: haemangioblastoma.

Haemangioblastomas are mostly sporadic (two-thirds) with a peak presentation in the fourth decade. Sporadic haemangioblastomas only rarely occur in children. Males and females are affected equally 4,7.

One-third of patients with haemangioblastomas (not just spinal) have von Hippel-Lindau syndrome 6-7 and typically these patients present earlier with multiple tumours.  

Clinical presentation is similar to that of other intramedullary spinal tumours, with pain, weakness and sensory changes common. Rarely, spinal hemangioblastomas may cause subarachnoid haemorrhage or hematomyelia 4.

Haemangioblastomas are benign vascular lesions and they do not undergo malignant degeneration, considered WHO grade I under the current (2016) WHO classification of CNS tumours 9

Histologically, they consist of large pale stromal cells packed between blood vessels.

The most common location is the thoracic cord (50%),  followed by the cervical cord (40%) 4,7. The majority of haemangioblastomas have an intramedullary component with two-thirds located eccentrically and having an exophytic component (most commonly along the dorsum of the cord 8).  Only 25% percent are entirely intramedullary. A minority appear entirely extramedullary and only rarely are they extradural 2,7.

Eighty percent of haemangioblastomas are solitary. If multiple lesions are present, von Hippel-Lindau syndrome should be suspected 4.

A densely enhancing nidus with associated dilated arteries and prominent draining veins is characteristic for a hemangioblastoma.

On non-contrast CT they may be seen as a soft tissue nodule often with a prominent hypodense cyst-like component. Contrast administration results in vivid enhancement of the solid component. 

Although they usually appear as discrete nodules, there can be diffuse cord expansion. An associated tumour cyst or syrinx is common (50-100%) 2,4. Additionally, they may rarely be a source of subarachnoid haemorrhage or haematomyelia 4,7.

Reported signal characteristics of the solid components include 4,7:

  • T1
    • variable relative to the normal spinal cord
    • hypo- to isointense most common, and difficult to identify
    • hyperintense (25%)
  • T2
    • iso- to hyperintense
    • focal flow voids especially in larger lesions
    • surrounding oedema and associated syrinx are usually seen
    • hemosiderin capping may be present
  • T1 C+ (Gd)
    • ​​the tumour nodule enhances vividly

Care should be taken to image the whole neuraxis to ensure that no other lesions are present. 

Hemangioblastomas are slow growing. They are usually treated by surgical resection, sometimes with preceding endovascular embolization to reduce intraoperative blood loss.

The differential diagnosis can be thought of in two groups on account of the principal features of these tumours: neoplasms of the spinal canal (enhancing component) and vascular malformations of the spinal cord (enlarged vessels)

Other enhancing masses to be considered include:

Vascular malformation to consider include:

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Article information

rID: 19275
Tag: cases, spine
Synonyms or Alternate Spellings:
  • Spinal hemangioblastoma
  • Spinal haemangioblastomas
  • Haemangioblastoma of spine
  • Haemangioblastomas of spine
  • Hemangioblastoma of spine

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