{Reference Type}: Journal Article {Title}: AGO Recommendations for the Diagnosis and Treatment of Patients with Locally Advanced and Metastatic Breast Cancer: Update 2023. {Author}: Thill M;Kolberg-Liedtke C;Albert US;Banys-Paluchowski M;Bauerfeind I;Blohmer JU;Budach W;Dall P;Ditsch N;Fallenberg EM;Fasching PA;Fehm T;Friedrich M;Gerber B;Gluz O;Harbeck N;Hartkopf AD;Heil J;Huober J;Jackisch C;Kreipe HH;Krug D;Kühn T;Kümmel S;Loibl S;Lüftner D;Lux MP;Maass N;Mundhenke C;Reimer T;Rhiem K;Rody A;Schmidt M;Schneeweiss A;Schütz F;Sinn HP;Solbach C;Solomayer EF;Stickeler E;Thomssen C;Untch M;Witzel I;Wöckel A;Müller V;Würstlein R;Janni W;Park-Simon TW; {Journal}: Breast Care (Basel) {Volume}: 18 {Issue}: 4 {Year}: 2023 Aug {Factor}: 2.268 {DOI}: 10.1159/000531579 {Abstract}: The Breast Committee of the Arbeitsgemeinschaft Gynäkologische Onkologie (German Gynecological Oncology Group, AGO) presents the 2023 update of the evidence-based recommendations for the diagnosis and treatment of patients with locally advanced and metastatic breast cancer (mBC).