Spinal paragangliomas are rarely-observed neuroendocrine benign tumors in the extra-adrenal paraganglionic system. Primary spinal involvement is even rarer. Radiologic differential diagnosis is not easy. This paper presents 2 lumbar paraganglioma cases and focuses on nuances to provide ideas for radiological differential diagnosis.

Low-grade fibromyxoid sarcoma (LGFMS) is a type of high metastatic potential of the fibrosarcomas. Most of the time there is a long interval between tumor presentation and metastasis. We present 2 cases of LGFMS. The first is a 31-year-old female with a mass in anterior aspect of her left thigh, and the other is a 68-year-old female with mass in posterior of her neck. Both cases underwent operation for several times and confirmed as LGFMS histopathologically, there is no exact protocol for postoperative follow-up to detect early metastases according to the relative variety of LGFMS. So informing the patients about the long-standing metastatic potential of their disease is important. Eur Res J 2018;4(3):238-241