A lcArea was deprecated in DITA version 1.3. It was replaced with the lcArea2 element. It was originally intended to define an area of a hotspot image that contains a correct or incorrect choice in a hotspot assessment interaction.
+ topic/figgroup learningInteractionBase-d/figgroup learning-d/lcArea
... <lcArea id="cardinals"> <lcAreaShape>rect</lcAreaShape> <lcAreaCoords>0,50,50,100</lcAreaCoords> <lcFeedback>No.</lcFeedback> </lcArea> ...