A patient walks into a Brooklyn hospital in 2010 complaining of chest pain. A chest x-ray is performed. The radiologist sees a suspicious mass on her right lung and notes it in the report. No one tells her. She is discharged. Two and a half years later, she returns with a chronic cough and is told she has terminal lung cancer that has spread to her liver, brain, and spine. She dies in 2013 at age 41, a single mother whose disabled, autistic daughter requires full-time care. By the time the family understands what happened, the New York medical malpractice statute of limitations has already barred any claim. That patient was Lavern Wilkinson, and the law named after her changed how New York handles cancer misdiagnosis cases. The team at Warner & Scheuerman, which evaluates medical malpractice claims as part of the firm’s broader litigation practice, explains the post-2018 framework to potential plaintiffs every month.
The reform did not create new rights for new injuries. It opened the door for older injuries that the prior statute had closed.
The 2.5-Year Default Rule Under CPLR 214-a
The general medical malpractice statute of limitations in New York is two years and six months. CPLR 214-a requires that “an action for medical, dental or podiatric malpractice must be commenced within two years and six months of the act, omission or failure complained of or last treatment where there is continuous treatment for the same illness, injury or condition.”
The clock runs from the date of the negligent act or, if the patient remained under continuous treatment for the same condition, from the last date of that treatment. New York courts apply the rule strictly. Patients who discover their injury after the 2.5-year window has closed are barred regardless of how serious the negligence was or how late the discovery occurred.
Two narrow exceptions existed before 2018. The foreign object rule under CPLR 214-a(a) gives the patient one year from discovery (or one year from the date of facts that would reasonably lead to discovery, whichever is earlier) to commence an action when a surgical sponge, instrument, or similar object has been left in the body. The continuous treatment doctrine tolls the limitations period for the duration of ongoing care for the condition that gave rise to the negligence. Beyond those, New York gave no relief to patients who discovered medical malpractice years after it occurred.
For cancer patients, the gap was particularly cruel. Cancer is often silent in its early stages, with symptoms that may not surface for years. A missed mass on imaging, a misread biopsy specimen, an unreviewed abnormal lab result, a failure to communicate findings to the patient or to a referring physician – all of these can cause delayed-diagnosis injuries that the 2.5-year clock had already barred by the time the patient knew anything was wrong.
What Lavern’s Law Actually Changed
Lavern’s Law was signed by Governor Andrew Cuomo on January 31, 2018. The legislation, which traces to Senate Bill S6800 of 2017, amended CPLR 214-a and CPLR 203(g) to create a narrow but consequential discovery rule for cancer cases.
Under the amended statute, an action based on the alleged negligent failure to diagnose cancer or a malignant tumor must be commenced within two years and six months of the later of two events: the date the patient knew or reasonably should have known of both the negligent failure to diagnose and the resulting injury, or the date of last continuous treatment for the same illness, injury, or condition. The discovery-based clock is subject to a seven-year outer cap from the date of the underlying act, omission, or last continuous treatment.
The structural change is significant. Before Lavern’s Law, the only question was when the negligence occurred. After Lavern’s Law, the question for cancer misdiagnosis cases is when the patient knew or reasonably should have known both that the diagnosis was missed and that injury resulted. A patient diagnosed with stage IV cancer in 2024 who learns the cancer should have been caught on a 2020 imaging study now has 2.5 years from the 2024 diagnosis to file suit, provided the lawsuit is also filed within seven years of the 2020 negligence.
That seven-year outer cap is the law’s hard ceiling. Patients who learn of a missed diagnosis more than seven years after the underlying act are still barred, even under the discovery rule.
Who the Law Covers and Who It Doesn’t
The reach of Lavern’s Law is narrower than many potential plaintiffs assume.
The discovery rule applies only to “an action based upon the alleged negligent failure to diagnose cancer or a malignant tumor.” Other types of medical malpractice remain governed by the standard 2.5-year limitations period. A missed heart condition, an undiagnosed infection, an unrecognized neurological disorder, a failure to detect a non-malignant condition, a surgical error unrelated to a cancer diagnosis, or a medication error all run on the original CPLR 214-a clock without the benefit of Lavern’s Law’s discovery framework.
Within the cancer category, the law covers the typical fact patterns that prompted the reform:
- Missed lung cancer on chest imaging
- Missed breast cancer on mammography
- Misread or under-read biopsy specimens
- Failure to follow up on abnormal lab results suggestive of malignancy
- Failure to order indicated imaging or biopsy when symptoms warranted
- Failure to communicate findings to the patient or referring physicians
- Failure to recognize cancer-suggestive findings during routine screening
The law does not abolish other tolling doctrines. The continuous treatment doctrine continues to apply, as does infancy tolling for minor patients (with a separate 10-year cap on medical malpractice claims for minors). Wrongful death actions arising from cancer misdiagnosis run on their own two-year clock from the date of death under EPTL 5-4.1, layered on top of the underlying medical malpractice analysis.
For claims against municipal hospitals (NYC Health and Hospitals Corporation, county hospitals, public university medical centers), the General Municipal Law § 50-e 90-day notice of claim requirement still applies on top of the malpractice statute. Lavern’s Law did not change the notice of claim deadline, which remains a separate procedural trap that Lavern Wilkinson’s own case demonstrated was particularly unforgiving.
The Revival Window and Recent Application
Lavern’s Law is generally not retroactive. It applies to acts of malpractice on or after January 31, 2018. The legislation did include a narrow revival window for claims that had become time-barred between July 31, 2017 and the effective date, allowing those claims to be revived if filed within ten months of January 31, 2018.
That revival window has continued to produce reported decisions years later. A New York court in 2025 applied the revival rule to a wrongful death action arising from a missed laryngeal cancer diagnosis, where the underlying claim had become time-barred on January 28, 2018, three days before the law took effect. The plaintiffs filed the action on April 25, 2018, within the revival window, and the court held the suit was timely.
For potential plaintiffs evaluating older cases, the revival window is generally closed at this point, but the underlying reach of Lavern’s Law continues to expand the universe of viable claims. A 2020 missed diagnosis discovered in 2024 is timely under the discovery rule even though the original 2.5-year window from 2020 has closed.
How Warner & Scheuerman Evaluates Cancer Misdiagnosis Cases
The firm’s intake on a potential cancer misdiagnosis claim runs through three timing questions and a substantive evaluation in parallel.
The first timing question is when the underlying act, omission, or failure to diagnose actually occurred. Identifying the imaging study that was misread, the biopsy that was under-interpreted, the abnormal lab result that was not followed up, the visit at which a referral should have been made.
The second is when the patient knew or reasonably should have known of both the negligent failure and the resulting injury. The discovery date typically corresponds to the date the cancer was eventually diagnosed, but the analysis is fact-specific. A patient who learned of an abnormal earlier imaging study only when receiving the cancer diagnosis is in a different position than a patient who had been told about the abnormality and decided not to follow up.
The third is the seven-year outer cap. Cases approaching or exceeding the seven-year mark from the original negligence require careful timing analysis even when the discovery date is recent.
Substantive evaluation runs alongside the timing analysis. Cancer misdiagnosis cases require expert review of the underlying records (imaging studies, pathology, treatment records, oncology notes) to establish that the standard of care was breached and that earlier diagnosis would have produced a meaningfully better outcome. Damages analysis includes the difference between the patient’s actual prognosis and the prognosis that would have applied with timely diagnosis, the medical expenses caused by the delay, lost earnings, pain and suffering, and where applicable wrongful death damages under EPTL 5-4.1.
If you or a family member learned of a missed or delayed cancer diagnosis and assumed the time to file a claim has passed, the answer under post-Lavern’s Law CPLR 214-a may be different than you expect. Reach out to Warner & Scheuerman to walk through the timing analysis, the underlying medical records, and the framework that New York medical malpractice law now applies to cancer misdiagnosis cases.