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Pathology Forum
July 2000

Quiz Case 3

Arch Otolaryngol Head Neck Surg. 2000;126(7):902-907. doi:

Hemangiomas are benign endothelial lesions that account for 0.7% of all osseous neoplasms.1-3 The most frequently involved skeletal site is the vertebral column, followed by the calvarium.3,4 Nasal bone hemangiomas are extremely rare, with only 30 cases reported to date (to our knowledge).1-3,5-10 Hemangiomas are classified histologically according to the predominant type of vascular channel present and thus are described as capillary, cavernous, or mixed.4 These histologic subtypes are characterized by distinct clinical features. Capillary hemangiomas are seen more commonly than cavernous hemangiomas and typically present early in life, tend to spontaneously involute, and most commonly affect the vertebrae.4 In contrast, cavernous hemangiomas typically present in adults, do not undergo spontaneous involution, and may even grow over time, causing compression of surrounding structures. Cavernous hemangiomas most commonly affect the calvarium, with the parietal bone most frequently involved, followed by the frontal bone.4 All reported cases of nasal bone hemangiomas have been of the cavernous subtype.

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