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WHO Classification of Tumours
Desmoid-type fibromatosis
Nasal cavity and Sinuses


Desmoid-type fibromatosis is an insidious, poorly circumscribed neoplasm arising from the deep soft tissues. It is characterized by the presence of elongated spindle-shaped fibroblasts, collagenous stroma formation, and an infiltrative growth pattern
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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