Fat-forming solitary fibrous tumor (SFT) is a rare variant of solitary fibrous tumor, a mesenchymal fibroblastic neoplasia with a particular branching hypervascular pattern. This tumor is usually classified as benign and only very few fat-forming SFTs with malignant histologic features have been reported. We report a histologically malignant fat-forming solitary fibrous tumor in a 61-year-old m...

Background Solitary fibrous tumors (SFTs) are rare fibroblastic mesenchymal neoplasms that were initially described in the pleura, but have been increasingly recognized to occur in other parts of the body. They have been traditionally regarded as indolent tumors that are rare to metastasize after surgical resection. Here, we describe a case of a Filipino female who initially presented with unil...

Solitary fibrous tumor (SFT) is a mesenchymal neoplasm that most commonly arises from the visceral or parietal pleura. Solitary fibrous tumor with a primary site in the filum terminale has not been reported previously in the literature. Here we report a case of SFT occurring in the filum terminale. The characteristic imaging feature of this tumor is hypointensity on T2-weighted images. Even tho...

Solitary fibrous tumor is a rare spindle cell mesenchymal tumor entity, with either benign or malignant behavior that cannot be accurately predicted by histological findings. An intrapulmonary site of origin is even rarer. We report a case of a 51-year-old woman in whom an abnormal nodule in the lower right lung was detected during staging for sigmoid adenocarcinoma. The nodule was excised and ...

A 31-year-old man presented with a 3-year history of progressive weakness and paresthesias of both legs. Spinal MRI revealed a 10-cm intraspinal tumor at T1-T5 with syringomyelia on both ends (figure, A–C). Surgery successfully resected the intramedullary tumor grossly (figure, D and E). Pathology suggested the diagnosis of solitary fibrous tumor (figure, F–P). Intramedullary solitary fibrous t...

Primary tumors of the pleura present grossly as either diffuse or localized neoplasms. The tumors with a diffuse pattern, known as diffuse pleural mesotheliomas arising from the mesothelial cells lining the pleura, are usually highly malignant and are commonly associated with asbestos exposure. The less common localized tumor, now known as a solitary fibrous tumor of the pleura (SFTP), appears ...

Introduction: Solitary fibrous tumours (SFTs) of the nose and paranasal sinuses are extremely rare.These were originally described as neoplasms of the pleura originating from spindle cells. It is further sub-classified as a benign type of mesothelial tumour. Its occurrence in many extra pleural sites have been reported earlier, mainly in the liver, parapharyngeal space, sublingual glands, tongu...

Objective: To investigate the clinical manifestations, imaging features, pathological characteristics and treatment strategies of prostate solitary fibrous tumors. Methods: A retrospective analysis of the clinical data of a male patient with prostate solitary fibrous tumor in our hospital and review of literature. Results: The patient was treated with transurethral resection, followed by confir...

The authors describe the clinical and pathological features of a solitary fibrous tumor of the tentorium, a rare location for the tumor in the CNS. A 52-year-old lady presented to the neurosurgical services with headache of four months and vertigo of one and a half months duration. On examination, she had left-sided cerebellar signs and bilateral papilloedema. Cranial MR imaging...

OBJECTIVE Solitary fibrous tumor is a rare tumor occurring in almost every anatomic location of human body; however, reports of malignant solitary fibrous tumor in the nasal and paranasal area are especially rare. In this report, we describe a case of non-recurrent malignant solitary fibrous tumor of the nasal and paranasal area. METHODS The patient was initially treated with nasal and parana...