A New Jersey appeals court on Monday reinstated a medical malpractice and wrongful death lawsuit, saying a trial judge erroneously barred one of the estate’s experts from testifying.

The three-judge Appellate Division panel reinstated the lawsuit, which alleged that 42-year-old Michelle Skounakis died Nov. 12, 2010, 15 days after she was prescribed Cytomel, a thyroid hormone that can be used as a weight-loss medication.