Positive bone scan findings were only seen in cases of bone pain, direct bony invasion by the tumor, and advanced T and N stage during post-treatment follow-up examinations.

• 而治疗之后的追踪检查中，也只在病人有骨头疼痛的症状、肿瘤有骨骼侵犯或是晚期的病例时，比较容易检查出骨骼扫描阳性的病人。