Table 1.

ES in Japan (2006–2011)

Bone 188
Cranium	2	Skull 1, mandible 1
Trunk	112	Pelvis 43, ribs 29, spine 23, scapula 9, clavicle 6 and sternum 2
Upper extremities	13	Humerus 10, ulna 2 and phalanges 1
Lower extremities	50	Femur 25, tibia 10, fibula 10, tarsals 3 and metatarsals 2
Multiple sites	11
Soft tissue 138
Head and neck	12	Head 5, neck 3, face 3 and maxilla 1
Trunk	68	Gluteal region 11, back 10, retroperitoneal 9, lower back 8, inguinal region 8, thorax 7, pleural cavity 4, axilla 3, abdomen 3, shoulder 2, abdominal cavity 2 and perineal region 1
Upper extremities	12	Upper arm 4, hand 4, elbow 2 and forearm 2
Lower extremities	41	Thigh 30, lower leg 10 and foot 1
Multiple sites	5

Data are derived from the Bone Tumor Registry in Japan, 2011 [27], and the Soft Tissue Tumor Registry in Japan, 2011 [28], run by the JOA Musculoskeletal Tumor Committee