Hunter Kyle, Alexander Alan, Passerini Stephen, Rovner Allen, Garg Ankur
Department of Radiology, Aultman Hospital, Canton, OH, USA.
BJR Case Rep. 2015 Oct 20;2(1):20150117. doi: 10.1259/bjrcr.20150117. eCollection 2016.
Mesenchymal chondrosarcoma is a rare and aggressive chondrogenic neoplasm arising from the bone or the soft tissue. Mesenchymal chondrosarcomas develop outside the osseous structures in about one-third of cases, and the majority of these occur in the meninges and the brain parenchyma. Intramuscular extraskeletal mesenchymal chondrosarcoma (EMC) is exceedingly rare, with very few cases reported in the literature. Although mesenchymal chondrosarcoma has a high potential for metastasis, there have been no reports of pulmonary metastasis from an EMC of intramuscular origin. Here, we describe a patient who came to our facility with a history of progressively worsening left lower extremity pain and swelling, and was found to have pathology-proven EMC originating in the left adductor magnus, with complete workup demonstrating multiple bilateral pulmonary metastases in addition to a possible metastatic focus in the right adrenal gland discovered during the interval surveillance period.
间叶性软骨肉瘤是一种罕见的侵袭性软骨源性肿瘤，起源于骨或软组织。约三分之一的间叶性软骨肉瘤发生于骨结构外，其中大多数发生在脑膜和脑实质。肌肉内骨骼外间叶性软骨肉瘤（EMC）极为罕见，文献报道的病例很少。尽管间叶性软骨肉瘤有很高的转移潜能，但尚无肌肉源性EMC发生肺转移的报道。在此，我们描述了一名患者，该患者因左下肢疼痛和肿胀逐渐加重前来我院就诊，经病理证实为起源于左大收肌的EMC，全面检查显示除了在间隔监测期发现右肾上腺可能存在转移灶外，还存在双侧多发肺转移。
