Breast Mondor's disease: Diagnosis and management of six new cases of this underestimated pathology.

Mondor's disease is an unusual and little-known pathology of the breast, characterized by superficial thrombophlebitis. The causes are still unresolved. Most of the patients do not fall under case studies of the scientific literature, given the reported incidence rate between 0.5% and 0.8%. The Mondor's disease patients are not always properly identified, and they are frequently treated as outpatients, even considering the benign course of the disease which often spontaneously resolves without any medical therapy. We report here six new cases of Mondor's disease, two of them were likely due to a trauma and were easily resolved with the use of non-steroidal anti-inflammatory drugs; the third one was apparently due to the stretching of the mammary veins in a patient with gigantomastia; the fourth one was subsequent to hormonal stimulation for in vivo fertilization and following gestation; and the last two cases (one was a man) were diagnosed after undergoing surgery for breast carcinoma.