Masson's tumor breast

Case contributed by Dr Garth Kruger


Routine screening study in a 70 year old female.

Patient Data

Age: 70
Gender: Female

The ultrasound study was unremarkable. Mammotome guided biopsy showed Masson's tumor. Masson was a pathologist who worked in Montreal. His original article appeared in 1923 " papillary endothelial hyperplasia" he called the lesion. The AFIP described 17 breast Masson tumors. All were unilateral.  The differntila is angiosarcoma of the breast. The Masson tumors are less than 2 cm and angiosarcomas are usually larger than 2 cm. 

The tumor has been described in fingers, the neck, tongue, muscle and retroperitoneum. 

Not typically the first diagnosis I make in breast masses.

PlayAdd to Share

Case information

rID: 18896
Published: 27th Jul 2012
Last edited: 14th Aug 2019
System: Breast
Inclusion in quiz mode: Included

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.