Solitary fibrous tumour of the nasal cavity and paranasal sinuses.
OBJECTIVE
Solitary fibrous tumour (SFT) is an uncommon unilateral benign lesion that usually arises from the pleura. Recently, SFT has been described in many other locations, such as the mediastinum, head and neck, orbit and urogenital system. To date, only 21 cases of SFT arising from the nasal cavity and paranasal sinuses have been reported in the literature.


METHODS
We describe a case of SFT localized in the right nasal cavity with extension to the right ethmoid and sphenoid sinuses in a 43-year-old man who presented with a 6-month history of unilateral right-sided nasal obstruction, rhinorrhoea and recurrent epistaxis.


RESULTS
CT showed a large mass arising from the right anterior ethmoid and sphenoid sinuses. Histopathologically, the lesion consisted of a non-encapsulated mass with spindle-shaped cells within a collagenous stroma. Definitive diagnosis was obtained by means of immunohistochemical analysis, which showed vimentin and CD34 cells.


CONCLUSIONS
The tumour was removed by endoscopic sinus surgery, and the patient remained free of tumour after 12 months of follow-up.
Alobid
Isam
I
Rhinology Unit, Department of Otorhinolaryngology, Hospital Clinic, Barcelona, Spain. 32874iao@comb.es
Alós
Llucia
L
Blanch
José Luis
JL
Benítez
Pedro
P
Bernal-Sprekelsen
Manuel
M
Mullol
Joaquim
J
D000328:Adult; D018952:Antigens, CD34 / Q000032:analysis; D014408:Biomarkers, Tumor / Q000032:analysis; D003937:Diagnosis, Differential; D004724:Endoscopy; D005005:Ethmoid Sinus / Q000473:pathology / Q000601:surgery; D006801:Humans; D008297:Male; D008654:Mesothelioma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D009669:Nose Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D010255:Paranasal Sinus Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D013101:Sphenoid Sinus / Q000473:pathology / Q000601:surgery; D014057:Tomography, X-Ray Computed; D014746:Vimentin / Q000032:analysis
D018952:Antigens, CD34; D014408:Biomarkers, Tumor; D014746:Vimentin