<unk>  is the most common sarcoma of soft tissue. The pathogenesis of<unk>  depends on the histological sub-type. The two sub-types, well differentiated and dedifferentiated, are the two most commonly occurring<unk> s. The majority of well differentiated<unk> s arise in the retroperitoneum. The chromosome region 12q13-15, is rich in protooncogenes, including the CHOP, CDK4, MDM2, HMGI-C, GLI, SAS, OS1, and the OS9, all of which play an important role in the pathogenesis of many neoplasms.<unk>  is associated with genetic conditions like Li-Fraumeni syndrome.<unk>  usually presents as a mass which often resembles lipoma and is multinodular. Microscopic pathological findings of<unk>  depend on the sub-type.
Liposarcoma pathophysiology
Chondroma pathophysiology
Lipoma pathophysiology
Hemangioma pathophysiology
Neurofibroma pathophysiology
Fibroma pathophysiology
Angiokeratoma
Liposarcoma staging