Korson recognized that this approach made him a lumper, meaning he was more willing to lump patterns of symptoms together to get to a diagnosis, even if the patient did not have the classical markers associated with the illness. Conversely, he felt others, including some at Childrens, were splitters, meaning they avoided making a diagnosis if the patient did not have the classic markers.
Although he had given Justina a working diagnosis of mito, he acknowledged he couldnt be 100 percent sure. But he was certain of this much: Justina had chronic, serious symptoms that left her drained and were suggestive of mito, particularly her pattern of losing stamina as the day and week wore on, which her teachers had noted. Her older sisters muscle biopsy had also suggested mito, which can run in families. And Justina had received the rare cecostomy surgery only after a sensitive, two-hour-long test measuring how effectively her colon pushed out waste had provided objective evidence that her colon was seriously impaired.