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WHO Classification of Tumours
Solitary fibrous tumor
Thyroid gland


Definition

A relatively rare, spindle-cell, fibroblastic tumour that histologically shows a prominent haemangiopericytoma-like vascular pattern. It is histopathologically characterized by the presence of round to spindle-shaped cells, hyalinized stroma formation, thin-walled branching blood vessels, and thin bands of collagen
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Fletcher CDM, Unni KK, Mertens F (Eds.)
World Health Organization Classification of Tumours. Pathology and Genetics of Tumours of Soft Tissue and Bone.
3rd Edition
IARC Press: Lyon 2002



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Solitary fibrous tumor (SFT) of the thyroid gland is an uncommon neoplasm mainly observed in middle-aged adults, with a slight predominance of females

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Ronald A. DeLellis, Ricardo V. Lloyd, Philipp U. Heitz, Charis Eng
World Health Organization Classification of Tumours. Pathology and Genetics of Tumors of Endocrine Organs
IARC Press: Lyon 2004



. Recurrence or distant metastasis have not been reported but there are too few documented cases to allow a definitive conclusion
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Cameselle-Teijeiro J, Varela-Duran J, Fonseca E, Villanueva JP, Sobrinho-Simoes M (1994)
Solitary fibrous tumor of the thyroid.
Am J Clin Pathol 101: 535-8




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Deshmukh NS, Mangham DC, Warfield AT, Watkinson JC (2001)
Solitary fibrous tumour of the thyroid gland.
J Laryngol Otol 115: 940-2




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Rodriguez I, Ayala E, Caballero C, De Miguel C, Matias-Guiu X, Cubilla AL, Rosai J (2001)
Solitary fibrous tumor of the thyroid gland: report of seven cases.
Am J Surg Pathol 25: 1424-8



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