Neurofibroma =ورم ليفي عصبي

Neurofibroma =ورم ليفي عصبي   Neurofibroma   EPIDEMIOLOGY Neurofibromas often occur as solitary lesions and are common in the general population. NF1 has a prevalence of 1 in 4000.   ETIOLOGY AND PATHOGENESIS Neurofibromas are hyperplasias of all the nerves elements. Neurofibromas can be seen as sporadic lesions or in the context of NF1,. The […]

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Nevocytic Nevus = الوحمة وحمية الخلايا

Nevocytic Nevus = الوحمة وحمية الخلايا     CONGENITAL     NEVOMELANOCYTIC NEVI   Epidemiology The vast majority of CNNs noted at birth are small and singular, and no gender predilection has been demonstrated. The most reliable prevalence rate for CNN in a homogeneous ethnic group was obtained by biopsying all pigmented lesions in 841 […]

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