Hattori K., Hatori M., Watanabe M., Osanai T., and Kokubun S. “Scrotum-Like Protrusion of Lipoma Arising from the Proximal Thigh”. Upsala Journal of Medical Sciences, vol. 109, no. 3, July 2009, pp. 261–265, doi:10.3109/2000-1967-090.