Keywords:
Neoplasia, Education, PET-CT, MR, CT, Soft tissues / Skin, Musculoskeletal soft tissue
Authors:
B. D. Nguyen; Scottsdale, AZ/US
DOI:
10.1594/essr2018/P-0056
Background
See attched slide
BACKGROUND
Myofibroblastoma was first described by Wargotz et al.
in 1987 as a benign tumor of the breast generally seen in older men.
Mammary-type myofibroblastoma is a rare tumor resembling its mammary counterpart.
It is accepted that this tumor arises from accessory breast tissue typically occurring along the embryonic milk-line from the axilla to the medial groin.
Almost half of cases are located in the pelvis or inguinal region.
About 25% of mammary-type myofibroblastoma occur outside the expected embryonic milk-line,
at locations such as head and neck,
viscera in the abdominal cavity or retroperitoneum,
lower extremity,
and to a lesser extend upper limb.
The pathogenesis of mammary-type myofibroblastoma outside the embryonic milk-line distribution is still not totally elucidated.