Fig. 2From: Elevation of cancer antigen 15-3 owing to oncocytic renal neoplasm in a patient without evidence of breast cancer recurrence on follow-up: a case reportGraph of the serum cancer antigen 15-3 levels over time. Each circle represents a measurement. The upper and lower horizontal, dashed red lines represent the generalized normal high and low values of cancer antigen 15-3, respectivelyBack to article page