Strong Medicine - Season 3 Episode 10 House Calls

When an old colleague with a breast lump calls for Andy's help—from space, of all places—the former Army colonel is at full attention. At the speed of light, she mobilizes both her hospital and NASA troops to perform a biopsy and, eventually, the removal of a growth. Back on Earth, Lu tries to help a pregnant woman with breast cancer make the delivery of her child—and the removal of the tumor—the happiest day of her life.