Complex sentence: Lack of enhancement is an important imaging characteristic to help distinguish the tumor from similar masses that can occur in this region, including germ cell tumors, granulomas of Langerhans cell histiocytosis and hypothalamic astrocytomas, lesions which usually demonstrate at least partial uptake of contrast.
Split into simpler sentences: Lack of enhancement is an important imaging characteristic to help distinguish the tumor from similar masses that can occur in this region. This includes germ cell tumors, granulomas of Langerhans cell histiocytosis and hypothalamic astrocytomas, although these lesions usually demonstrate at least partial uptake of contrast.