Sometimes, we must not over-mystify renowned doctors or experts.
They indeed know more than the average person and are more prominent in their areas of expertise. For some diseases, they can make a diagnosis that is almost spot on just by listening to the symptoms.
By feeling a lump, they know whether it's malignant or not.
But when faced with complex medical conditions, experts can easily become 'bricksperts' ('expert' in quotes indicating a reversal of expertise).
They are human too and need to synthesize information such as the patient's symptoms, physical examination, various test reports, medical history, age, and physical condition, just like any regular doctor.
Wu Baihe is definitely top-notch in the field of neurosurgery within the province.
But for this patient with an extremely complex cause of illness, without Wu Baihe on site and after excluding pulmonary embolism, no hasty conclusions can be made.