Related Experiment Videos
Multiple filum terminale hemangioblastomas symptomatic during pregnancy. Case report
Marta Ortega-Martínez1, Jose M Cabezudo, Ignacio Fernández-Portales
1Neurosurgical Service, Hospital Regional Universitario Infanta Cristina, Badajoz, Spain. marta.ort@terra.es
Journal of Neurosurgery. Spine
|August 11, 2007
Summary
Multiple spinal hemangioblastomas in the filum terminale, though rare, can become symptomatic during pregnancy. This unique case highlights that interrupting gestation led to symptom remission in a VHL syndrome-negative patient.
Area of Science:
- Neurology
- Oncology
- Reproductive Medicine
Background:
- Hemangioblastomas are low-grade, vascular tumors often linked to von Hippel-Lindau (VHL) syndrome, typically found in the cerebellum.
- Spinal nerve root hemangioblastomas are rare, with filum terminale origin being exceptional, especially multiple lesions.
Observation:
- Pregnancy-induced hormonal and physiological changes can exacerbate vascular tumors like hemangioblastomas.
- The clinical evolution of spinal hemangioblastomas during pregnancy is poorly understood due to their rarity.
Findings:
- A unique case of a VHL syndrome-negative woman with multiple filum terminale hemangioblastomas presenting symptoms during pregnancy.
- Symptom resolution was observed following the interruption of gestation, suggesting a link between pregnancy and tumor exacerbation.
Implications:
- This case underscores the potential for pregnancy to precipitate symptoms in spinal hemangioblastomas, even without VHL syndrome.
- Management strategies for spinal hemangioblastomas in pregnant patients may need to consider the impact of gestation on tumor behavior.
Related Concept Videos
Development of Blood Vessels
The development of the vascular system in a fetus is a complex and intricate process that begins as early as 15 to 16 days post-conception. This process starts outside the embryo, specifically in the mesoderm of the yolk sac, chorion, and connecting stalk. Approximately two days later, the formation of blood vessels occurs within the embryo itself.
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...
The initial formation of this system is facilitated by the small amount of yolk present in the ovum and yolk sac. Blood vessels originate from...
Regulation of Angiogenesis and Blood Supply
Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits. Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl hydroxylase and factor...