Absolute Change in Longest Diameter From Nadir Product of Perpendicular Diameters Timepoint

**Semantic type:** Quantitative Concept

**Definition:** The absolute change in the longest diameter of the lesion from the timepoint at which the product of perpendicular diameters of the lesion is the smallest.

**Synonyms:** - ACPPDNLD - Absolute Change From PPD Nadir in LDIAM - Absolute Change From PPD Nadir in LDIAM