To facilitate multidisciplinary team meetings' (MTM) management, the cancer research networks developed a communicating file. The Midi-Pyrénées region includes the Oncomip network and a cancer registry in the department of Tarn. Their collaboration allows the assessment of the care given to patients. The objectives of this study were to measure the completeness of the presentation to MTM of patients and its determinants (age and prognostic factors), and to study the quality of MTM for breast cancer diagnosed in the Tarn in 2007. A track of presentation to MTM chronologically conform was found in 70.5%. The completeness of presentation seemed lower for the oldest women and the parameters conditioning the decision of a non-surgical treatment were associated with a more frequent presentation to MTM. The quorum was respected for 53.9% of cases presented before all treatment and for 71.3% of cases presented after surgery. The partnership, which exists between the Tarn cancer registry and the Oncomip network, makes the realization of similar studies in population with other type of cancer possible.