NCIt definition : An uncommon variant of rhabdomyosarcoma characterized by the presence of whorls of
spindle cells forming a storiform pattern. In children it usually arises in the paratesticular
region. In adults it usually arises from the deep soft tissues in the head and neck.;
Alternative definition : NICHD: An uncommon variant of rhabdomyosarcoma that is characterized by the presence
of whorls of spindle cells forming a storiform pattern. In children, it usually arises
in the paratesticular region; in adults it usually arises from the deep soft tissues
in the head and neck.;