Which type of hemangioma is characterized by larger dilated spaces and involvement of larger vessels and usually does not regress?

Which type of hemangioma is characterized by larger dilated spaces and involvement of larger vessels and usually does not regress?

• A. Capillary hemangioma
• B. Cavernous hemangioma
• C. Lymphangioma
• D. Progenic Granuloma

Answer: (B)

The lesion described is cavernous hemangioma. Its hallmark is large, dilated vascular spaces lined by endothelium and often involving deeper, larger vessels. This architecture tends to produce a lesion that is more extensive and persistent, with little spontaneous regression compared with other hemangiomas. In contrast, capillary hemangiomas consist of many small capillary-sized vessels and are the classic infantile lesions that commonly involute over time. Lymphangiomas are made of lymphatic channels, not blood-filled vessels, and have a different clinical/histologic behavior. Pyogenic (progenic) granuloma is a lobular capillary proliferation that’s typically small and prone to bleeding, not a large, deep, non-regressing vascular lesion.

The lesion described is cavernous hemangioma. Its hallmark is large, dilated vascular spaces lined by endothelium and often involving deeper, larger vessels. This architecture tends to produce a lesion that is more extensive and persistent, with little spontaneous regression compared with other hemangiomas. In contrast, capillary hemangiomas consist of many small capillary-sized vessels and are the classic infantile lesions that commonly involute over time. Lymphangiomas are made of lymphatic channels, not blood-filled vessels, and have a different clinical/histologic behavior. Pyogenic (progenic) granuloma is a lobular capillary proliferation that’s typically small and prone to bleeding, not a large, deep, non-regressing vascular lesion.