“…Another remarkable fact is that these results did not deteriorate when the indications for surgical resection were progressively broadened in terms of the number of metastases resected [21,22], the DFI between the treatment of the primary tumor and the diagnosis of lung metastases [7,[22][23][24][25], bilaterality [7,21,26], type of lung resection [27], and repeated thoracotomies for resection of recurrent pulmonary metastases, as far as complete resection is achievable [15,21,24,26,28,29]. This is true for a very heterogeneous group of tumors, with very different biological characteristics and clinical aggressiveness as can be perceived by review of the published literature, either in a series with metastases of different primary tumors, as the present one [2][3][4][5]7,26,30], or in a series of lung resections for metastases of a single type of primary tumor [8,12,14,15,[18][19][20][22][23][24][25][31][32][33][34][35][36][37][38]…”