Mammary myofibroblastoma
Mammary myofibroblastoma is a rare, benign, circumscribed mesenchymal breast tumor.
Epidemiology
It is the only breast tumor that occurs more commonly in males than females . It also has a tendency to occur more often in elderly males and postmenopausal women.
Pathology
It arises from the stromal spindle cells of the breast . It stains positive for immunoreactive markers for desmin, smooth muscle, and actin.
Radiographic features
Mammography
- circumscribed mass
- no calcifications
- greatest diameter no more than 1-4 cm
Ultrasound
It usually has the appearance of a fibroadenoma:
- circumscribed homogenous
- slightly hypoechoic
MRI
- circumscribed mass
- internal septations
- homogenous enhancement
Treatment and prognosis
Complete resection is recommended as it has a high rate of recurrence if not completely excised .
Differential diagnosis
Siehe auch:
und weiter:
Assoziationen und Differentialdiagnosen zu Myofibroblastom der Mamma: