Aggressive Behavior Predictors in Solitary Fibrous Tumor: Demographic, Clinical, and Histopathologic Characteristics of 81 Cases

Diagnosis and management of an extremely rare solitary fibrous tumor in the retropubic space of Retzius: A case report

“…However, tumoral location and diameter might affect the outcome, and retroperitoneal tumors tend to be larger than those occurring elsewhere [ 11 ]. A tumor larger than 10 cm is considered an important basis for judging the potential for malignancy or as a predictor of poor prognosis [ 12 ]. Fine needle aspiration biopsy can provide a preliminary diagnosis, but a definitive diagnosis requires a histopathological examination of the resected specimen.…”

Multidisciplinary treatment of giant presacral solitary fibrous tumour: a case report and literature review

“…Tumour size ≥10 cm is considered to be an important basis for judging benign and malignant tumours, or a predictor of poor metastasis prognosis, and tumour diameter greater than 7.25 cm has been shown to be associated with distant metastasis and disease-specific death. 8 SFTs are reported to have an average mass of approximately 10.6 cm, and a malignant SFT displays active tumour cell proliferation, rapid growth and large volume. For SFTs with large diameter, particularly exceeding 15 cm, the malignancy may increase, with an increased metastasis rate.…”

Solitary Fibrous Tumor of the Prostate Shown on FAPI PET/CT

“…Solitary fibrous tumors are morphologically diverse fibroblast tumors associated with high risks of metastasis and death 4,5 . Solitary fibrous tumors can show aggressive behavior, even in the absence of any morphologic evidence of malignancy at onset 6 . Furthermore, solitary fibrous tumors that initially have benign histopathologic features can occasionally metastasize 7,8 .…”

“… 4 , 5 Solitary fibrous tumors can show aggressive behavior, even in the absence of any morphologic evidence of malignancy at onset. 6 Furthermore, solitary fibrous tumors that initially have benign histopathologic features can occasionally metastasize. 7 , 8 FAPI PET/CT might have the potential to be used as a complementary imaging modality to identify solitary fibrous tumors.…”