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These are predominantly benign lesions that are often found incidentally during radiology studies for other indications and can involve one or multiple vertebrae. Vertebral hemangiomas are a common etiology estimated to be found in 10-12% of humans at autopsy. [4] [5] [6] They are benign in nature and frequently asymptomatic. [5]
Angiolymphoid hyperplasia with eosinophilia (also known as: [1] "Epithelioid hemangioma," "Histiocytoid hemangioma," "Inflammatory angiomatous nodule," "Intravenous atypical vascular proliferation," "Papular angioplasia," "Inflammatory arteriovenous hemangioma," and "Pseudopyogenic granuloma") usually presents with pink to red-brown, dome-shaped, dermal papules or nodules of the head or neck ...
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]
Hemangioblastomas are most commonly composed of stromal cells in small blood vessels and usually occur in the cerebellum, brainstem or spinal cord. They are classed as grade I tumors under the World Health Organization 's classification system.
Intravascular papillary endothelial hyperplasia typically manifest as deep nodules or well-defined, round, red, or purple superficial papules.They are usually tiny, ranging in size from 0.5 to 5 cm. [3] IPEH lesions are most common in the digits and among blood arteries throughout the body, although they can also form in the head, neck, and body.
Depending on the grade of the sarcoma, it is treated with surgery, [8] chemotherapy, and/or radiotherapy.Though surgery is the current standard of care for hemangiopericytomas, metastasis and tumor recurrence occur in more than 30% of patients, in particular recurrence in the pelvis and retroperitoneum [3] and metastasis in bone and lungs. [9]
Dermal dendrocytoma, [1] Dermatofibroma, [2] Fibrous dermatofibroma, [2] Fibrous histiocytoma, [2] Fibroma simplex, [1] Nodular subepidermal fibrosis, [1] and Sclerosing hemangioma [1]) Histopathology of dermatofibroma, with basilar hyperpigmentation of the overlying epidermis (top right), and spindled fibroblasts with collagen entrapment.
There is disagreement as to how cases of KTS should be classified if there is an arteriovenous fistula present. Although several authorities have suggested that the term Parkes Weber syndrome is applied in those cases, [4] [12] [13] ICD-10 currently uses the term "Klippel–Trénaunay–Weber syndrome".