Meister P, Konrad E A, Stotz S
Arch Orthop Trauma Surg (1978). 1981;98(4):311-4. doi: 10.1007/BF00378888.
In this case of an extraskeletal osteosarcoma initially there were typical difficulties in diagnosing a) a malignant mesenchymal tumor and b) a bone-producing tumor. Only focally the test-booking findings of an osteosarcoma were present. The differential diagnosis concerned mainly pseudosarcomatous lesions with bone formations, which histologically may appear suspicious, however, follow a benign course clinically.
在这例骨外骨肉瘤病例中，最初在诊断方面存在典型困难：一是诊断恶性间叶性肿瘤，二是诊断骨生成性肿瘤。仅在局部出现骨肉瘤的检查结果。鉴别诊断主要涉及伴有骨形成的假肉瘤性病变，其在组织学上可能看似可疑，但临床过程为良性。
