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Hemangioma

  • Hemangioma

    Hemangioma originally described any vascular tumor-like structure, whether it was present at or around birth or appeared later in life. Mulliken et al. categorized these conditions into two families: one of self-involuting tumors, growing lesions that eventually disappear, and another of malformations, enlarged or abnormal vessels present at birth and essentially permanent. The importance of this distinction is that it makes it possible for early-in-life differentiation between lesions that will resolve versus those that are permanent.

  • Hemangioma

    Signs and symptoms : If they are on the surface of the skin, they are reminiscent of a ripe strawberry (hence, they are sometimes referred to as "strawberry hemangiomas"). If they are just under the skin they present as a bluish swelling. Sometimes they grow in internal organs such as the liver, larynx, or small and large intestines.In most cases, hemangiomas will disappear over time. Some are formed during gestation and are called congenital hemangiomas; the most common (infantile hemangiomas) appear during the first few weeks of life.

  • Hemangioma

    Causes : The cause of hemangioma is currently unknown; however, several studies have suggested the importance of estrogen signaling in hemangioma proliferation. In 2007, a paper from the Stanford Children's Surgical Laboratory revealed that localized soft tissue hypoxia coupled with increased circulating estrogen after birth may be the stimulus.

  • Hemangioma

    Statistics: Twenty-five patients had incomplete or poor-quality radiograph sets, leaving 745 patients for the study. A vertebral hemangioma was found in four patients (0.54%; 95% confidence interval [CI], 0.01-1.1%) and vertebral Paget's disease in four other patients (0.54%; 95% CI, 0.01-1.1 %). All the pagetic vertebrae were at the lumbar spine. Three of the four Paget's disease patients were unaware of the condition before their inclusion in the study. Based on previous estimates that thoracic and lumbar foci are present in 30 to 50% of Paget's disease patients, our data suggest that the overall prevalence of Paget's disease in French women older than 75 years may be in the 1.1-1.8% range.

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