*211 OPINION
Owеns Corning (formerly known as Owens-Corning Fiberglas Corporation) appeals from the April 11, 1995 Order of the Superior Court that vacated the judgment of the Philadelphia Court of Common Pleas (trial court) and remanded for a new trial.
Charles W. and Edith McNeil, husband and wife (individually, Mr. McNeil and Mrs. McNeil; collectively, Appellees), commenced this asbestos-related personal injury action following occupational injuries suffered by Mr. McNeil. Thе complaint, filed in the trial court on November 8, 1985, sought damages for non-malignant conditions allegedly caused by Mr. McNeil’s occupational exposure to the asbestos-containing products of many named defendants. Specifically, these nonmalignant conditions included pleural thickening, asbestosis, and restrictive lung disease. When the case went to trial, the only remaining defendant was Owens Corning (formerly known as Owens-Corning Fibеrglas Corporation), all other defendants having settled, been dismissed or filed for bankruptcy.
Consistent with the standard practice for asbestos-related personal injury actions tried in the trial court, the case was reverse-bifurcated with issues of medical causation and damages comprising the first phase of trial, and, if necessary, issues of liability constituting the second phase of trial.
After the filing of the complaint, but prior to trial, Mr. McNeil was diagnosed with squamous cell lung cancer. At trial, Appellees contended that in addition to the non-malignant conditions, asbestos exposure also caused the lung cancer. In addition, Appellees presented evidence at trial of restriction in Mr. McNeil’s activities before his lung cancer diagnosis, which Appellees claimed was attributable to the separate, non-malignant conditions. Defеnse expert Theodore Rodman, M.D. agreed that Mr. McNeil had lung cancer, but testified that his malignancy was not asbestos-related, but was *212 attributable solely to cigarette smoking. 1 Dr. Rodman further testified that Mr. McNeil did not have pulmonary asbestosis, but did have very mild plеural thickening, which did not cause any symptoms.
The trial court submitted a special verdict slip to the jury consisting of four questions, one on causation, the other three on damages, with the first question asking: “Do you find by a fair prеponderance of the evidence that exposure to asbestos was a substantial contributing factor in the development of Mr. McNeil’s lung cancer?” The jury answered “no” to this question and, therefore, did not reach the remaining three questions on damages.
Judgment was entered against Appellees and in favor of Owens Corning. By Order dated May 5, 1993, the trial court denied Appellees’ Motion for a New Trial. McNeil appealed to the Superior Court, claiming that the verdict sheet submitted by the trial court improperly precluded an award of damages for Appellees’ alleged non-malignant asbestos-related injuries.
On April 11, 1995, the Suрerior Court filed an Order and accompanying Opinion vacating the trial court judgment and remanding for a new trial. The Superior Court held that the trial court should have permitted the jury to consider conditions other than cancer in determining whether Appellees were entitled to damages. Judge Olszewski filed a Concurring and Dissenting Opinion, agreeing with the majority’s conclusion that Appellees should be permitted to pursue a clаim for Mr. McNeil’s non-malignant conditions, but emphasizing that the new trial should be strictly limited to those non-cancer claims.
*213 Owens Corning filed a timely Petition for Panel Reconsideration and/or Clarification of the Superior Court’s Order to the extent that the Order would allow Appellees to re-litigate the lung cancer claim. On June 6, 1995, the Superior Court entered a per curiam Order denying the Motion for Panel Reconsideration, stating that thе case was to be remanded to the trial court on all issues. On December 15,1995, this Court granted Owens Coming’s Petition for Allowance of Appeal. The issue before us is whether the Superior Court erred in granting Appelleеs a new trial on both the claims of cancer and non-cancer asbestos related injuries. For the following reasons, we reverse in part and affirm in part.
Under the doctrine of res judicata issue preclusion,
2
when an issue of fact or of law is actually litigated аnd determined by a valid final judgment, and determination of the issue was essential to judgment, the determination on that issue is conclusive in a subsequent action between the parties, whether on the same or a different clаim.
Clark v. Troutman,
Clearly, the cancer and non-cancer diseases in the current case constitute separate claims. Pennsylvania courts
*214
have consistently recognized the medical distinctions betwеen malignant and non-malignant asbestos-related injuries. In
Marinari v. Asbestos Corp., Ltd.,
The court in Marinari was not specifically presented with the issue of whether pleural thickening, absent physical impairment, is sufficient to sustain a cause of action. We conclude, however, that the natural extension of Marinari is tо preclude an action for asymptomatic pleural thickening since Appellants are permitted to commence an action when the symptoms and physical impairment actually develop.
Id.
at 675,
Here, the error found by the Superior Court was related not to the cancer claim decided by the jury, but to the separate non-cancer claims excluded from the jury’s verdict sheet. The same parties fully triеd McNeils’ lung cancer claim, and a competent jury has determined that Appellees are not entitled to damages from Owens Corning for that claim. The conditions necessary to apply the doctrine оf res judicata issue preclusion are present. Appellees are therefore barred from re-litigating the separate lung cancer claim.
This Court has consistently held that where the only trial errors disclosed in the record deal with specific and discrete issues, the grant of a new trial should be limited to those issues. In
Messer v. Beighley,
In addition, Appellees bring the novel argument that the trial court decision should be reversed and a new trial awarded on all issues because the trial court failed to instruct the jury as to the meaning of the phrase “reasonable medical certainty.” 3 Appellees maintain that in failing to include this definition in the jury instructions, the trial court deprived Appellees of a fair trial on the lung cancer claim.
A specific objection must be made to preserve a claim of objectionable jury charge.
Tagnani v. Lew,
Accordingly, we reverse the Superior Court’s Order to the extent thаt it allowed a new trial on the lung cancer claim, and affirm the grant of a new trial limited only to the non-cancer injury claims.
NIGRO, J., concurs in the result only.
Notes
. Dr. Rodman testified that the cell type of an asbestos-related tumor is more likely to be an adenocarcinoma, while Mr. McNeil’s tumor was a squamous cell carcinoma. Further, Dr. Rodman testified that individuals who experience an occupational exposure to asbestos have an increased risk of developing asbestos-related lung cancer only if they first develop pulmonary asbestosis. Dr. Rodman’s review of the information regarding test results and physician’s examination's of Mr. McNeil indicated no еvidence of pulmonary asbestosis. Notes of Testimony, March 8, 1993, Deposition of Dr. Rodman, at 15-16.
. “Res judicata” means “a thing adjudged” or a matter settled by judgment. Traditionally, American courts have used the term res judicatа to indicate claim preclusion, i.e., the rule that a final judgment rendered by a court of competent jurisdiction on the merits is conclusive as to the rights of the parties and constitutes for them an absolute bar tо a subsequent action involving the same claim, demand or cause of action.
See, e.g., Matchett v. Rose,
. In thеir proposed points for charge, the Appellees asked that the trial judge charge the jury on what it means when a medical expert opines to a "degree of medical certainty.” The judge declined to include that proposed point for charge. Citing
Dallas v. Burlington Northern, Inc.,
