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Hemangioma

Hemangioma is a benign tumor, usually in the shape of a ball, but sometimes a flatter mat, formed by a collection of excess blood vessels in an area. Because blood vessel cells are usually transparent in thin smooth muscle cells, hemangiomas are usually the color of the blood that runs through them. If the blood has a lot of oxygen, or is more arterial, the color is usually bright red. If the color is dark, the blood is usually low in oxygen, venous or possibly stagnated. more...

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Hemangiomas are relatively common in newborns, and tend to disappear without treatment. The appearance of the tumor may be mistaken for a sign of physical abuse.

Types

Hemangiomas are often classified by the size of the vessel affected. For example:

  • Capillary hemangioma (or "capillary nevus hemangioma", or "superficial hemangioma")
  • Cavernous hemangioma (or "deep hemangioma") -- large vessels

Hemangiomas are mostly commonly cited as a skin related abnormality. However, various types of Hemangiomas can occur within the body. Common internal occurrences of hemangiomas include the liver, among other organs (Cavernous Hemangioma).

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Pyriform sinus hemangioma with calcifications
From Ear, Nose & Throat Journal, 6/1/04 by Mary Es Beaver

A 60-year-old woman presented with a 5-year history of a mass in the left medial pyriform sinus. The mass was first noted during routine endoscopy by her gastroenterologist, who diagnosed it as benign and elected to follow it clinically. But the mass had grown significantly in the meantime, and the patient was eventually referred to our office. The patient admitted to mild dysphagia while eating solids, but she was otherwise asymptomatic. Rigid videostroboscopy showed that the mass was bluish and lobulated and that it involved the left medial pyriform sinus, the left aryepiglottic fold, and the postcricoid area (figure). No feeding vessel or vascular blush was seen on angiography. Computed tomography revealed that the mass contained several calcifications, but there was no pathologic lymphadenopathy, invasion of cartilage, or extension into adjacent tissue planes.

[FIGURE OMITTED]

The patient was taken to the operating room, where she underwent biopsy and laser ablation. Findings were consistent with a benign hemangioma.

From the Department of Otolaryngology, The University of Texas Health Science Center at Houston (Dr. Beaver), and the Texas Voice Center, Houston (Dr. Stansley and Dr. Rodriguez).

COPYRIGHT 2004 Medquest Communications, LLC
COPYRIGHT 2004 Gale Group

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