[Infantile hemangiopericytoma of the nasal cavity].

An infantile sinunasal hemangiopericytoma as a variant of infantile myofibroma is a rare finding. The observation of a sinunasal, infantile hemangiopericytoma affecting the anterior skull base and ethmoid bone in a female infant is presented. Chromosomal gains (6q14q16.2 und 18q22qter) as well as chromosomal losses (5q33.3q35.2, 10p11.2p12.2, 10q24.3q26.1, 15q23q25, 17p12pter and 22q11.2q13.2) were present. Endonasal tumor resection was achieved.