Sporadic intra-abdominal desmoid tumor with a very unusual onset: two case reports. - Kuwabara, Hiroshi; Katayanagi, Sou; Koganezawa, Itsuki; Nakagawa, Masashi; Katsumata, Kenji; Tsuchida, Akihiko; Kawachi, Shigeyuki (Journal of Medical Case Reports, 2021)