It’s really rare to see a new twist in litigation. Here’s one: Plaintiff’s attorneys in a securities fraud litigation are themselves sued for breach of fiduciary duty. As they say: a convoluted story. “The convoluted case — possibly a first, several lawyers said — grows out of long-running securities litigation against Tenet Healthcare, and the competing state and federal derivative suits against the Tenet board of directors that were filed on its heels.”The attorneys are Skadden Arps.