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  2. Medical Malpractice
  3. Types of Medical Malpractice
  4. Failure to Diagnose and Treat Properly



When we visit our doctors, we rely on them for guidance and to provide answers to our  questions. If we’re suffering from a serious medical condition, such as heart disease or cancer, prompt medical attention may mean the difference between increased quality of life and fatal health complications.

Deratany & Kosner knows how critical it is for patients to receive a prompt and accurate diagnosis. A failure to diagnose a medical condition, a misdiagnosis of an existing condition or failure to treat a condition properly can seriously derail a person’s chance of a successful recovery. Yet diagnosing errors are made each year by doctors with alarming frequency. In fact, studies show harm caused by errors in diagnosis is the top reason why doctors get sued.

A failure to diagnose, or a misdiagnosis, delayed diagnosis or other diagnostic errors may include any of the following cases:

  • Misinterpretation of tests
  • Delayed diagnosis of cancer
  • Failure to order a biopsy
  • Failure to order necessary lab or medical tests
  • Failure to properly analyze lab results
  • Failure to refer to a specialist
  • Failure to monitor changes in a patient’s progression of a misdiagnosed disease

A diagnosing error can occur anywhere from a crowded emergency room to a routine check-up at your doctor’s office. In some instances, lab technicians or radiologists may misread tests done on a patient. Doctors, nurses and other medical professionals may also fail to order tests or some other form of hospital negligence may occur. No matter how or why your misdiagnosis occurred, we are ready to help.


If an illness is not correctly diagnosed, it can’t be treated properly. In the meantime, a patient’s condition can continue to get worse, putting his or her health at great risk. When a medical professional’s negligence prevents a correct diagnosis from being made, we believe that person should be held responsible.

When an illness is not properly diagnosed, people suffer needlessly. Their medical expenses continue to go up. They may even be left unable to work because their illness has not been diagnosed and treated properly.

Deratany & Kosner is passionate about helping people in the Chicago area who suffered unnecessarily because of a failure to diagnose their illness correctly as well as other types of medical malpractice. Our attorneys will conduct a thorough investigation to look for evidence of negligence during diagnosis. We’ll consult with experts to determine if the proper steps were followed and test results were read accurately.


When we can prove negligence, we work with insurance companies to negotiate a settlement that covers your losses. But if they try to deny your claim, we are ready to fight them in court.

Failing to diagnose and treat your illness properly can have serious effects. These effects can be physical, financial, emotional and psychological. Depending on the circumstances of your case, you may be able to seek compensation for medical expenses, lost wages, household services, permanent disability, disfigurement, pain and suffering and emotional distress. Our attorney will fight to get you the maximum compensation possible.

If a doctor has not made the correct diagnosis and it caused you harm, contact Deratany & Kosner to talk to one of our medical malpractice attorneys. Call us at 800-529-7285 to schedule a free case consultation.

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