[Polymastia in unusual localization during pregnancy]

Polymastia is a fairly well-described and not entirely uncommon developmental anomaly in embryogenesis of the breast. It occurs in the milk line, most often in the axila but may also be present outside of this area. Clinical manifestation of polymastia is due to sex hormones, especially during puberty, pregnancy and lactation. Supernumerary/ aberrant breasts can undergo the same pathological changes, such as benign and malignant, as normally positioned breasts. In our case report we present a case of a pregnant patient with axillary polymasty bilaterally with benign tumors by ultrasound, further in anal and labia majora area.Key words: polymastia aberrant breast - gravidity gigantomastia.