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Composite hemangioendothelioma is a low-grade angiosarcoma typically occurring in adults, although it has been described in infancy. [ 2 ] : 601 Spindle-cell hemangioendothelioma [ 3 ] ) is a vascular tumor that was first described in 1986 by Sharon Weiss, M.D. , [ 4 ] and commonly presents in a child or young adult who develops blue nodules of ...
A hemangioma or haemangioma is a usually benign vascular tumor derived from blood vessel cell types. The most common form, seen in infants, is an infantile hemangioma , known colloquially as a "strawberry mark", most commonly presenting on the skin at birth or in the first weeks of life.
Infantile hemangiomas are the most common type of vascular tumor to affect babies, [4] accounting for 90% of hemangiomas. [5] They are characterised by the abnormal proliferation of endothelial cells and of deviant blood vessel formation or architecture. [6] Hypoxic stress seems to be a major trigger for this. [7]
Hemangiopericytomas are tumors that are derived from specialized spindle shaped cells called pericytes, which line capillaries. [4] Hemangiopericytoma is an aggressive mesenchymally derived tumor with oval nuclei with scant cytoplasm. There is dense intercellular reticulin staining. Tumor cells can be fibroblastic, myxoid, or pericytic. These ...
Infantile hemangioma is the most common vascular tumor. It is a benign tumor, which occurs in 4-5% of Caucasian infants, but rarely in dark skinned infants. [6] It occurs in 20% of low weight premature infants and 2.2 to 4.5 times more frequently in females. [7]
Rosacea. What it looks like: Rosacea causes redness and thick skin on the face, usually clustered in the center.Easy flushing, a stinging sensation, and small, pus-filled pimples are other common ...
Vertebral hemangiomas or haemangiomas (VHs) are a common vascular lesion found within the vertebral body of the thoracic and lumbar spine. These are predominantly benign lesions that are often found incidentally during radiology studies for other indications and can involve one or multiple vertebrae.
Microvenular hemangioma is an acquired benign vascular tumor that presents as an asymptomatic, slowly growing, 0.5- to 2.0 cm reddish lesion on the forearms or other sites of young to middle-aged adults. [2] The cause of microvenular hemangioma is unknown, however it has been associated with immunosuppression.