Masson's pseudotumour of the ethmoid sinus - a case report.
OBJECTIVE
We report a case of Masson's pseudotumour or intravascular papillary endothelial hyperplasia presenting in the ethmoid sinus.


METHODS
We present a diagnostically challenging case of Masson's pseudotumour of the ethmoid sinus presenting with persistent epistaxis and a review of the available literature.


CONCLUSIONS
Intravascular papillary endothelial hyperplasia is a benign, reactive lesion first described by the French pathologist Pierre Masson in 1923. It can lead to diagnostic uncertainty due to its close resemblance clinically, radiologically and histopathologically to angiosarcoma.
Department of Otolaryngology - Head and Neck Surgery, Aberdeen Royal Infirmary, Aberdeen, UK.
S
S
Hooda
M R
MR
Humphreys
S W
SW
Wong
A S
AS
Evans
D004844:Epistaxis / Q000209:etiology; D005005:Ethmoid Sinus; D005260:Female; D006390:Hemangioendothelioma / Q000175:diagnosis*; D006801:Humans; D006965:Hyperplasia / Q000473:pathology; D008875:Middle Aged; D010255:Paranasal Sinus Neoplasms / Q000175:diagnosis*; D016896:Treatment Outcome