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A pyogenic granuloma or lobular capillary hemangioma [3] is a vascular tumor that occurs on both mucosa and skin, and appears as an overgrowth of tissue due to irritation, physical trauma, or hormonal factors. [4] [5] It is often found to involve the gums, skin, or nasal septum, and has also been found far from the head, such as in the thigh. [6]
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.
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.
Targetoid hemosiderotic hemangioma manifests as a single, tiny, reddish-violaceous to brown targetoid lesion that can grow centrifugally in the acute phase is encircled by a hemorrhagic halo. [3] The halo may vanish in later phases, leaving just a central papule. [4] [5] There have been reports of certain cases without targetoid development. [6]
Approximately 5% of adults have liver hemangiomas in the United States, but most are asymptomatic. [30] Liver hemangiomas usually occur between the ages of 30 and 50 and more commonly in women. [4] Cases of infantile liver cavernomas are extremely rare. Cavernous hemangioma of the eye is more prevalent in women than men and between the ages of ...
Congenital hemangiomas are present and fully formed at birth, [5] and only account for 2% of the hemangiomas. They do not have the postnatal phase of proliferation common to infantile hemangiomas. [6] There are two main variants of congenital hemangioma: non-involuting, and rapidly involuting (beginning in the first year of life). [6]
The terminology of hemangiomas has faced recommendations by the International Society for the Study of Vasular Anomalies to rename the lesions' as "venous malformations" to present consistent language for practitioners and patients. However, the term "vertebral hemangioma" remains dominant throughout the literature. [22] [23]
A tufted angioma, also known as an acquired tufted angioma, angioblastoma, angioblastoma of Nakagawa, hypertrophic hemangioma, progressive capillary hemangioma, and tufted hemangioma [1] [2] usually develops in infancy or early childhood on the neck and upper trunk, and is an ill-defined, dull red macule with a mottled appearance, varying from 2 to 5 cm in diameter.