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April 6, 2026

Lab and Pathology Errors: When Mix-Ups and Misreads Cause Harm

When you go to the doctor, hospital, or specialist, you trust that the results guiding your care are accurate. Unfortunately, when a specimen is mislabeled, a slide is misread, or critical results are not communicated in time, the care you’re receiving may be inadequate, ineffective, or just plain wrong. Tragically, these kinds of errors in testing can delay important diagnoses, prevent timely treatment, and lead to significant, potentially even deadly, harm.

When you are injured through a diagnostic error, it can be difficult to know where to turn for help. Are these types of errors a medical malpractice issue? Are they the result of defective equipment? Who can be held liable for your damages? These are the questions a lab and pathology error lawyer will answer, enabling them to identify those responsible for your injury and to pursue the compensation you will need to make the fullest recovery.

Hurt Through a Diagnostic Error? Talk to Us for Free

If you have suffered a misdiagnosis, undergone unnecessary treatment, or had treatment delayed due to a lab or pathology error, Mandell, Boisclair & Mandell is here to help. Call our Providence office at (401) 273-8330 to schedule a free and confidential consultation with one of our lab and pathology error lawyers and learn about your options and your rights.

What Are Lab and Pathology Errors?

A lab error is a mistake involving the collection, labeling, transportation, testing, processing, or reporting of a patient sample. A pathology error happens when tissue, blood, or another specimen is interpreted incorrectly, or when a serious finding is missed altogether.

These problems can happen before the testing starts, while the testing is underway, or after the results should have been reviewed and acted on. Pathology is especially important because pathologists often confirm or rule out life-changing conditions like cancer and serious infections.

Common lab and pathology mistakes that cause harm include:

  • Mislabeling a specimen with the wrong patient’s name
  • Mixing up samples before or after collection
  • Damaging or contaminating a sample
  • Delays in processing or reporting results
  • Entering the wrong results into the medical record
  • Failing to notify the treating doctor about urgent findings
  • Misreading a biopsy, blood smear, or pathology slide
  • Missing signs of cancer, infection, or another serious disease

Specimen errors can occur at the point of collection, during relabeling, or inside the laboratory itself during steps such as intake and processing. Failures to follow up on tests can also lead to missed or delayed diagnostic results.

At Mandell, Boisclair & Mandell, our lab and pathology error lawyers understand the complex process samples can go through. This means we know exactly where to look for breakdowns, oversights, and mistakes. Thorough in our investigations, we work to identify exactly what took place so we can hold the appropriate parties accountable and seek maximum compensation for your injuries.

How Lab and Pathology Errors Affect Patients

The consequences of a lab or pathology error can be devastating. You might lose valuable time while a disease worsens. You may go without treatment entirely. You may undergo surgery, take medication, or be subject to unnecessary and invasive follow-up testing.

Prolonged pain, emotional distress, added medical expenses, and the frightening realization that the real problem has yet to be addressed are all possible. So too are financial, psychological, and physical repercussions that can last for months or even years.

Lab and pathology errors might mask the real problem. Many people don’t learn that a preventable mistake occurred until a second opinion, a repeat test, or a later diagnosis reveals what should have been caught earlier. These failures can interfere with timely care and produce real harm.

All of the ways you have suffered due to a lab or pathology error have to be considered when determining what damages to seek. During your cost-free case review with one of the lab and pathology error lawyers at Mandell, Boisclair & Mandell, we will listen to how you have been impacted by the error to help you understand what you may be entitled to seek in damages.

Who Might Be Responsible for a Lab or Pathology Error?

Depending on what happened, liability may rest with:

  • A hospital or medical center
  • An independent laboratory
  • A pathologist
  • Lab technicians and support staff
  • A physician who failed to review or act on abnormal results
  • A health system whose procedures allowed a preventable mix-up

A lab error may begin with misidentification at collection, continue with a paperwork failure, and end with a missed opportunity to act on abnormal findings. Because testing errors might occur at multiple stages of care, not just during one isolated step, more than one person is liable for your damages. Identifying them all is an important step in pursuing the justice you deserve.

How a Lab and Pathology Error Lawyer Can Help

Cases involving delayed or misdiagnosis, specimen mix-ups, and pathology misreads are complex. Records must be reviewed closely. Timelines matter. The chain of custody for a specimen may play a role. The communication between the lab, pathologist, and treating physician may be important. This is where an experienced lab and pathology error lawyer can make a real difference.

A strong legal team can:

  • Obtain and review full medical records
  • Identify where the diagnostic process broke down
  • Determine which providers or institutions were involved
  • Work with qualified medical experts to evaluate what happened
  • Show how the error changed your outcomes
  • Pursue compensation for medical costs, lost income, pain, and long-term harm

Why Choose Our Lab and Pathology Error Lawyers?

Mandell, Boisclair & Mandell focuses on medical malpractice lawsuits. Where other firms shy away, we dig in. With access to a variety of medical specialists, we work to determine how the error happened, who can be held responsible, and what you are owed in damages for your suffering.

For nearly five decades, our legal team has been focused on helping victims of medical malpractice seek compensation. We have significant experience handling complex claims involving lab and pathology errors, diagnostic delays, and similar concerns, and have secured several multi-million dollar verdicts and settlements for people dealing with various forms of medical negligence. Attentive and involved, we will take the time to understand your injury and the impacts it has had on your life, and fight for compensation that is truly representative of your experiences.

Schedule a No-Cost, No-Obligation Case Review Today

If you suspect a mislabeled specimen, a delayed test result, or pathology misread caused you harm, Mandell, Boisclair & Mandell is here to help. Use our online contact form or call our Providence office to schedule a free case review with one of our lab and pathology error lawyers today. We serve people injured through medical negligence throughout Rhode Island.