“…As growth continues, they may reach a very large size (17 kg., Rokitansky, 1880) and they may infiltrate the tissues from which they arise so widely that they may become inoperable. On rare occasions abdominal wall desmoids extend through the peritoneum to involve the underlying bowel (Moore, Rowe, and King, 1950;Strode, 1954;Mock, 1959;Rivkin and Kaliteevsky, 1967), but they never invade the skin. Although voluntary muscle is infiltrated, desmoids do not usually invade bloodvessels, nerves, or joint capsules (Gerstman and Nimberg, 1969), but occasionally they become so fixed to periosteum that bone has to be excised to free the tumour (Cohen and Goldenberg, 1965;Cole and Guiss, 1969).…”