Superior=above, lateral=towards the side/further from the midline. So superolateral means above and further form the midline, for example the eye is superolateral to the nose
Each cerebral hemisphere has a superolateral, a medial and an inferior surface. The superolateral part is situated above and toward the sides of the cranium.
Right Hypochondriac
Disregarding laparoscopic entry here... Obviously, the incision depends on what surgery will follow ^_^ For appendectomy for example, the most used incision will be the McBurney one, cutting in the right fossa over the McBurney point, going from superolateral to inferomedial, about 3-4 cm. There are some general incisions, such as the paramedian (a bit more to the left/right from the middle, vertically) and median (right in the middle, vertically) incision. When there is an emergency (acute abdomen), the most used incision will be a full laparotomy, which is a median vertical incision, from the proc xyphoideus (bottom of sternum) to the pubis. The caesarian incision is one of the few horizontal ones, right above the pubis. For kidney transplants, a curved incision is used, paramedian.