Overview
Solitary fibrous tumor (SFT) is a rare neoplasm characterized by spindle-shaped cells positive for CD34 and other markers, typically arising in soft tissues but capable of occurring in unusual locations such as the retroperitoneum 1.Diagnosis
Key Diagnostic Criteria: Positive immunohistochemical staining for CD34, CD99, and Bcl-2; negative for hematopoietic and other lineage markers 1.
Recommended Tests: Imaging (ultrasound, CT, MRI) to assess tumor size and location; immunohistochemistry to confirm diagnosis 1.
Grading: Not explicitly detailed in provided abstracts; typically based on mitotic rate and cellular atypia 1.Management
First-Line Treatment: Surgical resection is the primary treatment, aiming for complete removal 1.
Adjunctive Treatments: Not specified in the provided abstracts for typical SFT cases 1.
Follow-Up: Close monitoring recommended due to limited long-term behavior data 1.Special Populations
Pediatrics: Infantile digital fibroma-like tumors can occur in adults, suggesting atypical presentations may arise in non-pediatric populations 2.
Elderly/Comorbidities: No specific details provided in the abstracts regarding elderly patients or comorbidities 12.Key Recommendations
Confirm diagnosis through comprehensive immunohistochemical analysis including CD34, CD99, and Bcl-2 positivity 1 (Evidence: Moderate).
Perform surgical resection whenever feasible, considering the rarity and potential complexity of complete excision 1 (Evidence: Expert opinion).
Implement rigorous follow-up protocols due to uncertainties regarding long-term outcomes 1 (Evidence: Weak).References
1 Orsaria M, Marzinotto S, Mariuzzi L. Large solitary fibrous tumour of the retroperitoneum: a case report and review of the literature. Scottish medical journal 2013. link
2 Sarma DP, Hoffmann EO. Infantile digital fibroma-like tumor in an adult. Archives of dermatology 1980. link