Development of<unk>  is the result of genetic mutations, overexpression of angiogenic fators and downregulation of inhibitors of angiogenesis.<unk>  may be associated with POEMS syndrome and Castleman disease. On gross pathology, spongy with vascular compartments of various sizes separated by fibrous tissue are findings of<unk> . On microscopic histopathological analysis, channels lined by benign endothelium containing red blood cells are findings of<unk> .
Hemangioma pathophysiology
Lymphangioma pathophysiology
Hemangioma risk factors
Chondroma pathophysiology
Neurofibroma pathophysiology
Ganglioneuroma pathophysiology
Lipoma pathophysiology
Schwannoma pathophysiology