From a Common Symptom to a Rare Diagnosis: A Case Report of Metastatic Solitary Fibrous Tumors.

Low back pain is one of the most common reasons for medical appointments in primary care. Although mostly benign and self-limited, it requires careful evaluation in order to identify serious underlying conditions.  Solitary fibrous tumors (SFTs) are rare fibroblastic mesenchymal neoplasms with low metastatic potential that can be present anywhere in the body, with nonspecific associated symptoms.  We exhibit the case of a young patient who was diagnosed with metastatic SFT after perceiving a painless mass in the dorsal region associated with low back pain refractory to analgesics, describing its features, and performing a literature review.
Competing Interests: Human subjects: Consent was obtained or waived by all participants in this study. Conflicts of interest: In compliance with the ICMJE uniform disclosure form, all authors declare the following: Payment/services info: All authors have declared that no financial support was received from any organization for the submitted work. Financial relationships: All authors have declared that they have no financial relationships at present or within the previous three years with any organizations that might have an interest in the submitted work. Other relationships: All authors have declared that there are no other relationships or activities that could appear to have influenced the submitted work.
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