Patient has a tumor located at the level of the right flank what muscles may be involved?

The correct answers are: b. Transversus abdominis muscle, c. Internal oblique, and d. External oblique.

The right flank region corresponds to the area between the ribcage and the hip, and the muscles involved in this region are:

– Transversus abdominis muscle (deep muscle layer)
– Internal oblique muscle (middle muscle layer)
– External oblique muscle (superficial muscle layer)