Ms. Wang, who is only 40 years old, has been a little annoyed recently, she has no history of epilepsy recently, she has frequent limb convulsions, in order to find out the cause of her came to the hospital for a check-up, this examination scared her, there is actually a "thing" in her head......
Combined with blood tests, the doctor highly suspected that Ms. Wang was infected with parasitic diseases, Ms. Wang usually likes to eat aquatic products such as sashimi, frog meat, eel, etc., in order to pursue a bite of umami, she often feasts on half-cooked meat, but she didn't expect to attract "worms" to her body this time.
Ms. Wang followed the doctor's advice for surgical treatment, and the operation was carried out smoothly under general anesthesia. According to the imaging results, the insect body is close to the precentral gyrus, and through precise positioning, the surgeon makes an incision of about 3x3cm bone window in the skull, and carefully separates the tissue under the microscope to reduce traction and avoid damage to the posterior precentral gyrus motor functional area. Finally, the cystic lesion of the encapsulated body was found, and the capsule was about 0.3x0.4cm, and the capsule was cut open to capture a parasite that was still wriggling. From the point of view of insect morphology, the possibility of Schizocephalus is considered, and anthelmintic treatment is carried out after the pathology is confirmed. Ms. Wang recovered quickly after the operation, and was discharged from the hospital after observation with no neurological symptoms.
Schizocephalic larvae is a flattened animal of the genus Diegong of the family Pseudophyllidae, which is very infectious, often parasitic in the body of frogs and snakes, when people eat water or food containing insect eggs, the eggs can be adsorbed on the intestinal wall, and then hatch into larvae, and then break through the blood-brain barrier through blood circulation into the brain. Schizocephalic larvae inhabit or multiply in various parts of the body, which can cause corresponding symptoms, such as ocular schizocephalosis, subcutaneous schizocephalosis, etc., which are manifested as small mobile nodules under the skin, local redness, swelling, pain, and crawling sensation. When Schizocephalus parasitizes in the skull, the enlarged capsule may compress the intracranial tissues, causing symptoms such as headache, projectile vomiting and epilepsy.
Eating raw aquatic products is a high risk factor for parasitic infections, and in addition to the above-mentioned Schizocephalus, there are many parasites that live in humans, such as tapeworms and flukes, and it is not uncommon to get parasitic diseases due to raw consumption. Since some parasite eggs are killed by hypertonic saline, many people think that deep-sea fish have a low risk of parasite infection, but in fact, marine fish also have parasites. For example, Anisakis is a parasite of the order Anisakis mainly parasitic in marine animals, some common edible marine fish will be infected with Anisakis worm, once people eat undercooked marine fish products such as sushi, sashimi, etc., they may be infected with Anisakis disease. Therefore, scientific handling of ingredients is an important step to avoid parasitic infections.
Cooking is the easiest and most effective method, according to research, most parasites do not tolerate high temperatures, heating to more than 60°C for a few minutes can kill most parasites, greatly reducing the chance of developing parasites. At the same time, it is also very important to avoid cross-contact between raw and cooked food, and the kitchenware that touches raw meat should avoid contact with cooked food, and there have been many cases of cross-infection of liver flukes due to the indistinguishable raw and cooked kitchenware, so in daily life, it is necessary to strictly distinguish between raw and cooked food tableware, and the knife and cutting board used in handling raw and cooked food should be separated to reduce the risk of parasitic infection.
Tips: Remember that the misfortune comes from the mouth, "fresh" and "dangerous" coexist! Do not incur illness because of the desire for a momentary tongue, if you are unfortunately infected with parasites, you need to go to a regular hospital for treatment, under the advice of a professional doctor.
Hu Rui, Department of Anesthesiology, Affiliated Hospital of Guilin Medical College
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