Multimodality Imaging of Well-Defined Osteolytic Lesions December 4, 2016 NucsRadiology Leave a comment Multimodality Imaging of Well-Defined Osteolytic Lesions Below is a table describing the anatomic and functional imaging features of well-defined osseous lytic lesions, based on Dr. Clyde Helms’ “FEGNOMASHIC” pneumonic. References: Bran… NucsRadiology.com