The CDC now reports more than 1,600 cases of vaping-related lung injuries nationwide.
A microscopic view of the tissue revealed two different patterns of lung injury. One is called organizing pneumonia, which is when tiny airways and air sacs become inflamed. Others had damaged alveoli, the tiny air sacs responsible for allowing oxygen into the blood and carbon dioxide out."This is one more layer of evidence that this is a practice that is causing lung damage," Dr. Sanjay Mukhopadhyay, director of pulmonary pathology at the Cleveland Clinic, said.
The study didn't look at which products or ingredients may have caused the damage, though one patient told his doctors that he'd switched to a product labeled"Dank Vapes" a few weeks before he was hospitalized. THC vaping products called Dank Vapes are linked to many of the cases of lung illnesses. The counterfeit brands have common packaging that is easily available online and used by distributors to market THC-containing cartridges.that other patients diagnosed with EVALI also said they'd used"Dank Vapes," which are counterfeit.
Early on in the investigation, some doctors had diagnosed patients with a different form of pneumonia, called lipoid pneumonia. That occurs when inflammatory cells with abnormally high levels of fatty substances called lipids collect in the lungs. The diagnosis made sense given that many vape devices tested contained high levels of vitamin E oil. However, that ingredient has not been detected in all of the devices, and public health officials have said that while vitamin E oil may be one clue, it does not explain all the cases."We don't see under the microscope what you would expect to see if a lipid was causing the damage, but that doesn't mean necessarily that it's not," he told NBC News.
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