Mammary myofibroblastoma

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~~Myofibroblastoma~~Mammary myofibroblastoma

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~~Myofibroblastoma~~Mammary myofibroblastoma is a rare, benign, circumscribed mesenchymal breast tumour.

Epidemiology

It is the only breast tumour that occurs more commonly in males than females ². 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 ¹. 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 ³.

Differential Diagnosis

diagnosis

-<p><strong>Myofibroblastoma</strong> is a rare, benign, circumscribed mesenchymal <a title="Breast tumour" href="/articles/breast-neoplasms">breast tumour</a>. </p><h4>Epidemiology</h4><p>It is the only breast tumour that occurs more commonly in males than females <sup>2</sup>. It also has a tendency to occur more in elderly males and postmenopausal women.</p><h4>Pathology</h4><p>It arises from the stromal spindle cells of the breast <sup>1</sup>. It stains positive for immunoreactive markers for desmin, smooth muscle, and actin.</p><h4>Radiographic features</h4><h5>Mammography</h5><ul>
+<p><strong>Mammary myofibroblastoma</strong> is a rare, benign, circumscribed mesenchymal <a href="/articles/breast-neoplasms">breast tumour</a>. </p><h4>Epidemiology</h4><p>It is the only breast tumour that occurs more commonly in males than females <sup>2</sup>. It also has a tendency to occur more often in elderly males and postmenopausal women.</p><h4>Pathology</h4><p>It arises from the stromal spindle cells of the breast <sup>1</sup>. It stains positive for immunoreactive markers for desmin, smooth muscle, and actin.</p><h4>Radiographic features</h4><h5>Mammography</h5><ul>
~~-</ul><h5>Treatment</h5><p>Complete resection is recommended as it has a high rate of recurrence if not completely excised <sup>3</sup>.</p><h5>Differential Diagnosis</h5><ul>~~
~~-<li><a title="Fibroadenoma (breast)" href="/articles/fibroadenoma-breast">fibroadenoma</a></li>~~
~~-<li><a title="Hamartoma of breast" href="/articles/breast-hamartoma">hamartoma</a></li>~~
~~-<li><a title="Lipoma of breast" href="/articles/breast-lipoma">lipoma</a></li>~~
+</ul><h4>Treatment and prognosis</h4><p>Complete resection is recommended as it has a high rate of recurrence if not completely excised <sup>3</sup>.</p><h4>Differential diagnosis</h4><ul>
+<li><a href="/articles/fibroadenoma-breast">fibroadenoma</a></li>
+<li><a href="/articles/breast-hamartoma">hamartoma</a></li>
+<li><a href="/articles/breast-lipoma">lipoma</a></li>