A solitary fibrous tumor arising in the parapharyngeal space, with MRI and FDG-PET findings

Wakisaka, Naohiro; Kondo, Satoru; Murono, Shigeyuki; Minato, Hiroshi; Furukawa, Mitsuru; Yoshizaki, Tomokazu

doi:10.1016/j.anl.2008.05.010

Cited by 26 publications

(14 citation statements)

References 11 publications

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“…These CT, MRI, and PET findings are very similar to the features of SFTs, 6) and our first diagnosis was SFT. Differential diagnosis between SFT and pleural leiomyoma was difficult.…”

Section: Discussionsupporting

confidence: 72%

Giant Leiomyoma Arising from the Mediastinal Pleura: A Case Report

Haratake

Fukushima

Kozuma

et al. 2017

ATCS

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“…These CT, MRI, and PET findings are very similar to the features of SFTs, 6) and our first diagnosis was SFT. Differential diagnosis between SFT and pleural leiomyoma was difficult.…”

Section: Discussionsupporting

confidence: 72%

Giant Leiomyoma Arising from the Mediastinal Pleura: A Case Report

Haratake

Fukushima

Kozuma

et al. 2017

ATCS

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“…1,2 Although mostly occurring in the pleura, this tumour has also been recently reported in many sites, including abdomen, trunk, extremities and the head and neck region. [3][4][5][6][7][8] In our study, eight SFT in the head and neck region were located in the orbit, masticator space, the parapharyngeal space and the parotid gland.…”

Section: Discussionmentioning

confidence: 99%

“…3,4 Although rare, SFT could also be found in various head and neck regions, such as the cheek, orbit, oral cavity, laryngeal and parapharyngeal spaces as well as the thyroid gland, [4][5][6][7] and the common sites affected in the head and neck region are the orbit and oral cavity. 7,8 Classically, SFT are composed of variably pleomorphic spindle cells admixed with collagen and arranged haphazardly.…”

Section: Introductionmentioning

confidence: 99%

MRI findings of solitary fibrous tumours in the head and neck region

Liu¹,

Tao²,

Shi³

et al. 2014

Dentomaxillofacial Radiology

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Objectives: To analyse the MRI findings of solitary fibrous tumours in the head and neck region. Methods: We retrospectively reviewed MR images in eight patients with solitary fibrous tumours proven on histological examination. All the patients underwent conventional MRI, and four patients also underwent dynamic contrast-enhanced MRI and diffusion-weighted imaging in five cases. Image characteristics were analysed. Results: All lesions were found as solitary well-defined masses ranging in size from 1.9 to 6.8 cm (mean, 4.1 cm). They were mostly homogeneous and isointense to the muscle on T 1 weighted images and heterogeneous and mildly hyperintense on T 2 weighted images. After gadolinium administration, areas that were mildly hyperintense on T 2 weighted images were strongly enhanced. They were mildly hyperintense on diffusion-weighted imaging. The average tumour-apparent diffusion coefficient values were 0.001 157 ± 0.000 304 9 mm s 22 compared with the muscle 0.000 760 ± 0.000 265 0 mm s 22 , and there was a statistical difference of p 5 0.002. The time-intensity curves exhibited a rapidly enhancing and a slow washout pattern on dynamic contrast-enhanced MRI. Conclusions: Solitary fibrous tumours should be considered in cases of heterogeneous hypervascular tumours in the head and neck region. Areas of mild hyperintense intensity on T 2 weighted images that are strongly enhanced after gadolinium injection are suggestive of this diagnosis. Non-restricted diffusion and rapidly enhancing and slow washout pattern time-intensity curves may be additional valuable features.

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“…[1][2][3][4][5][6][7][8]11,[23][24][25][26] Pathologically, orbital SFT is a well-defined, nonencapsulated tumor with a patternless arrangement of alternating hypercellular and hypocellular regions of spindle cells against a collagenous background of variable vascularity. The tumors are richly vascular with many dilated vessels showing a staghorn appearance.…”

Section: Discussionmentioning

confidence: 99%