Delayed cancer diagnosis in Italy: what compensation can be claimed

A delayed diagnosis does not produce a single kind of harm. Depending on the facts, compensation may be claimed for different kinds of harm, which should be kept apart because each has its own requirements of proof:

• the harm to health caused by the delay: a more extensive disease, heavier treatment, more radical surgery, suffering that a timely diagnosis would have avoided or reduced;
• the loss of a chance (perdita di chance) of recovery, longer survival or less suffering, where it cannot be established whether the outcome would have been different;
• the premature loss of life (perdita anticipata della vita), where it can be said on causal grounds that the delay brought death forward;
• the loss of self-determination (autodeterminazione): the loss of the ability to decide how to face the time that remains;
• expenses incurred and, for the family, compensation for the loss of the relationship with the person who has died.

Where the exact amount cannot be proved, the court may assess it on an equitable basis (art. 1226 of the Civil Code), but equity does not replace proof of the facts, of the link with the error and of the harm.

Drawing on its recent decisions, the Court of Cassation explains that a lost chance arises from an “insuperable uncertainty”: what has been lost is a possibility, not a result. In cancer cases it is the loss of a serious, appreciable and substantial possibility of a longer life or of less suffering, which the science and treatment of the time allowed one only to regard as possible.

The point that is often misunderstood is that the percentage does not decide the classification. A high estimate does not make the harm a “bigger” chance: if the medico-legal assessment shows that, with the correct conduct, the patient would more likely than not have lived longer, which is the civil standard of proof, there is no longer any uncertainty about the event. There is a causal link, and the harm is the premature loss of life, or the shortening of its length or quality.

This has practical consequences. A claim classified as “only” a chance usually results in partial compensation; a claim that proves the causal link with the earlier death or with the worsening of the illness can seek full compensation. The classification therefore has to be built from the start, on the medico-legal report, and not left to chance.

In the case before the Third Civil Section (Cass. civ., Sez. III, order of 17 September 2025, no. 25480), the result of a biopsy taken in 2010 during treatment for an intestinal disease was never communicated to the patient. The cancer was discovered a year and a half later, when it had reached stage IV, and the patient died. His wife claimed compensation.

The court of first instance upheld the claim; the Court of Appeal rejected it, holding that the error had caused only the loss of a chance of recovery, while the claim was framed as damage to health. The court-appointed expert, however, had estimated a loss of five-year survival probability of between 50 and 80 per cent. The Court of Cassation observed that such an estimate does not express uncertainty but a causal judgment: the harm had been wrongly classified. It set the judgment aside and sent the case back to the Ancona Court of Appeal, differently composed.

The Court relies on judgments no. 5641 of 2018 and no. 28993 of 2019, which had already drawn the distinction. The order comes from an ordinary section, not the Joint Chambers: it confirms an established line of authority, and its effect in any given case depends on the evidence gathered.

In the same order the Court recalls a second, separate head of harm. Omitting or delaying the diagnosis of a terminal illness takes away the patient’s ability to decide what to do: which treatment to attempt or decline, and how to organise personal, family and working life. According to the decisions the Court cites (among them Cass. no. 7260 of 2018), this is the violation of a real interest, the right to determine freely one’s own path in life. It is not the same as the loss of a chance and, as the Court puts it, it may be assessed on an equitable basis without requiring the patient to prove in detail which choices would have been made.

This does not mean that every delay carries a sum: there must be an established error and an illness with a fatal outcome, in which a timely diagnosis would have left real choices open. It is a head of claim that is easily overlooked, and one the Court of Cassation asked the court on remand to consider.

The hospital or clinic is liable to the patient in contract for failing to perform properly, including for the conduct of the health professionals it uses (art. 7(1) of Law no. 24 of 2017, with arts 1218 and 1228 of the Civil Code). The doctor is, as a rule, liable in tort (art. 7(3) of the same Law, with art. 2043 of the Civil Code), unless he or she took on a contractual obligation directly to the patient. The burden of proof and the limitation periods differ; we return to the periods below.

In every case the patient, or whoever acts for the patient, has to reconstruct three steps: what could and should have been done in light of the symptoms, the tests and the guidelines; what was done, or omitted, and when; and what would have happened with correct conduct, in terms of stage of disease, available treatment and survival. The last step decides the classification of the harm, and it requires a forensic physician and a physician experienced in the disease.

Consider a histology report that flags a suspicious lesion and that, through an administrative failure, is never passed on to the treating doctor or the patient. Fifteen months later the disease appears at an advanced stage. The experts’ question will be: with that diagnosis, on that date, which stage and which treatment, with what expected survival? The answer, and the scientific literature behind it, shapes everything else.

The first step is to gather the full medical records: clinical files, reports, images, histology results, communications between departments and any document showing when the information was available. It is best to request them in full, with images in digital format, before raising any complaint with the hospital. On that basis a forensic physician can say whether there was an error and what difference it made.

Italian law then imposes a step before any civil action: anyone who intends to sue over medical liability must first apply for a court-appointed preliminary expert report (art. 696-bis of the Code of Civil Procedure) or start mediation, and the claim is admissible only afterwards (art. 8 of Law no. 24 of 2017). If conciliation fails, or the procedure is not completed within six months of filing, the effects of the claim are preserved if the application to start the proceedings is filed within ninety days of the filing of the expert’s report or of the end of the six months. The insurer takes part in the procedure and must either make an offer or explain why it does not.

As for limitation, the ordinary period is ten years (art. 2946 of the Civil Code), which is the one that normally applies to the hospital’s contractual liability. A claim for compensation for a wrongful act expires after five years, and where the act is also a crime with a longer limitation period, that longer period applies (art. 2947 of the Civil Code). Where the period starts to run when an illness emerges over time has to be assessed on the documents, and it is a check to make at once.

If you or a relative are facing a late cancer diagnosis in Italy, our personal injury and compensation practice works in Italian and English, and can assess the records, with a forensic physician, before any step is taken.