Torts — Breach of fiduciary duty — Negligence — Unauthorized release of medical records — Trial court erred in holding that plaintiff could not bring a claim for breach of fiduciary duty based on defendant’s unauthorized disclosure of plaintiff’s medical records where the requirement of doctor-patient confidentiality creates a relation of trust and confidence between the parties giving rise to a fiduciary duty, the breach of which is actionable in tort — Error to grant summary judgment based on determination that plaintiff failed to show a causal link between the negligent act and plaintiff’s injury where issue of causation should have been submitted to a jury because plaintiff submitted a reasonable theory that defendant’s release of medical information to plaintiff’s employer resulted in his termination for psychiatric reasons