An Unusual Cause of Breast Pain

We report the case of a 30-year-old woman, two pregnancies (first delivery at the age of 27), menarche at the age of 13 who presented to the emergency department for the recent occurrence of a right breast pain. There was a familial history of early onset of breast cancer (one maternal cousin at the age of 36). She had no personal history of breast pathology. Clinical examination revealed a 5 mm-wide tubular induration of the upper lateral quadrant of the right breast (Fig. 1). The area was very sensitive to palpation, although it did not look inflamed. No homolateral adenopathy was found, neither was another lesion. Breast ultrasound was performed and showed a hypoechogenic subcutaneous and uncompressible linear structure (Fig. 2). There was no visible flow with color Doppler ultrasound inside the lesion (Fig. 3). Altogether, we came to the diagnosis of a breast superficial vein thrombosis, also called Mondor’s disease.