Fig. 1From: A retrospective study on prophylactic regional lymphadenectomy versus nodal observation only in the management of dogs with stage I, completely resected, low-grade cutaneous mast cell tumorsTime to progression for 64 dogs with surgically-removed stage I low grade mast cell tumor undergoing prophylactic regional lymphadenectomy (PRL, solid line) or regional lymph node observation only (OO, dashed line). Difference not statistically significant (P = 0.058)Back to article page