手和足的骨转移罕见,作者回顾了有关文献报道的240例和自己的43例(手21,足22),发现两部位的发生率相近,两部位均有转移者迄今只报道过6例。手部的转移以指骨尤其是末节最多,腕骨最少;足的转移约半数在跗骨(作者组内73%),跟骨占1/4。多骨转移并不少见(作者组23%)。手的转移中约半数源于肺癌,几乎均为溶骨性;肠道肿瘤转移趋向累及足;泌尿生殖系转移肢骨极少,也以足骨受累多。实验表明,肢端骨转移的机制与受累部位的血流量有关。Mulvey认为,这可解释为何以骨的转移以动脉血充沛的末节指骨为多。腰椎静脉和硬膜 Bone metastasis of the hands and feet is rare. The author reviewed 240 cases reported in the literature and 43 cases (Hand 21, Foot 22) in the literature. It was found that the incidence of the two sites is similar, and only two cases have been reported in the two sites. . The metastasis of the hand was the phalanx, especially the distal segment, and the carpal bone was the least; about half of the metastases were in the sacrum (73% in the author group) and calcaneus in the metatarsal. Metastasis is not uncommon (23% of authors). About half of the metastases in the hands originate from lung cancer, and almost all of them are osteolytic; the metastasis of the intestinal tract tends to involve the foot; the urogenital system has very few metastatic limbs, and the foot bones are also involved. Experiments have shown that the mechanism of bone metastasis in the extremities is related to the blood flow in the affected area. According to Mulvey, this may explain why bone metastases are mostly arterial blood in the distal phalanx. Lumbar vertebrae and dura