LK in medical terms, specifically in the context of fetal ultrasound imaging, most likely refers to the Left Kidney.
The provided reference mentions "Coronal view of the fetal right (RK) and left kidneys (LK)", clearly indicating that LK is an abbreviation for the left kidney. When viewing ultrasound images, radiologists and sonographers often use abbreviations to quickly identify anatomical structures. RK is commonly used for the right kidney, making LK the logical abbreviation for the left counterpart. This identification is crucial in assessing fetal development and detecting any abnormalities in kidney formation or function.
Therefore, in a fetal ultrasound report or discussion, if you see "LK," it almost certainly refers to the left kidney.