Overview of pathology

Peenash disease is a parasitic disease, which is caused by the invasion of larvae of cattle sheep. Female flies directly produce larvae in the nostrils, and quickly migrate to the nasal cavity, sinus, frontal sinus and even cranial cavity, causing bleeding and secreting a large amount of nasal fluid, which causes difficulties when the nostrils are dry.

harm

The fly maggots that cause nasal maggots may enter the cranial cavity through the sinuses, causing serious consequences and even death.

The main symptom of myiasis is the mechanical stimulation of maggots to the host or patient. Hair, hooks, thorns and migration on the body surface of fly maggots will stimulate the body wall of the host. Patients will feel tingling, pain, itching, foreign body sensation, wandering and so on in a certain part of the body.

Patients with nasal maggots sneeze and feel foreign bodies in their noses.

Some fly maggots feed on the body tissues of the host, such as the fly maggots of the spiral whitefly. The consequences are serious, even death.

It is reported that there are several cases in China that have not been fully recorded.

Case 1

In September 2006, in Zengcheng, Guangdong, James Hope suffered from malignant lymphoma. After chemotherapy, his nasal cavity was a little inflamed and bleeding, but he didn't expect to attract flies to lay eggs. More than 100 wriggling white maggots were hatched in his nasal cavity, about 1cm long. Yesterday, He Laobo, who had cleared the nasal cavity maggots, returned to the First Hospital of Guangzhou Medical University for examination. No new maggots were found. Whether there are any eggs to be hospitalized for observation.

More than 50 maggots fell out in one night.

"Back and forth, * * * took out more than 100 small maggots from the nasal cavity, covering the whole bottom of the bowl." Dr Xiao, an expert in otolaryngology at the First Hospital of Guangzhou Medical University, said that James Hope, 69, who lives in Zengcheng, has suffered from sinusitis for a long time. It was diagnosed as malignant lymphoma three months ago, and the primary disease was nasopharynx. After receiving chemotherapy in Hai Yin Branch of the First Hospital of Guangzhou Medical University, he went home to recuperate. At first, James Hope just felt that his nose was a little blocked and it was a little difficult to breathe, so he didn't care about his previous sinusitis. However, last Tuesday, James Hope, accompanied by his son, rushed to the hospital for examination, and found that his nose was constantly overflowing with pus and mixed with blood. He was stunned when the doctor opened his nose. "The left nasal cavity is full of white crawling maggots." Considering James Hope's advanced age, the hospital could only deal with it temporarily and decided to have an operation the next day. That night, maggots kept falling out of James Hope's nostrils. His son was busy all night and picked up more than 50 pieces.

Maggots crawl into the skull and threaten life.

Dr. Xiao told reporters that in the next day's operation, the doctor spent more than an hour, using surgical forceps to clip out the little maggots one by one, and cleaned up more than 50 little maggots, plus more than 50 little maggots the night before, reaching more than 100. And each treaty is 1 cm long. Judging from the shape of the maggot, it has lived in the nasal cavity for some time. Because the bone tissue in Herb's nasal cavity has been seriously eroded, doctors have to fill it with hemostatic materials to prevent further bleeding in the nasal cavity.

According to reports, it is very rare to have more than 100 flies in the nasal cavity. Generally speaking, ordinary people's noses feel very sensitive. If an insect flies in, it can be detected quickly, and the nasal mucosa will secrete a mucus to prevent foreign bodies from entering the nasal cavity. James Hope, whose nose suffers from lymphoma, is insensitive after chemotherapy. The foul secretions may attract flies to sneak into his nose while sleeping, and lay eggs and reproduce in it. In addition, there is a big gap in the nasal cavity, and maggots live by eating carrion and secretions, which leads to more reproduction.

Dr. Xiao said that if these maggots are not cleaned up in time, they may crawl into the patient's skull through the nasal cavity, threatening their lives. Especially remind elderly patients like this, it is best to sleep under mosquito nets to prevent mosquitoes and flies from taking advantage of it, and at the same time pay attention to physical hygiene to avoid maggots.

Case 2

On June 5438+ 10, 2007, in Anfu, Jiangxi Province, a man was exposed to eggs while doing farm work, and often picked his nose, causing the eggs to enter the nasal cavity and breathe. Finally, the eggs attached to the palate and hatched into larvae, and then began to devour the patient's palate tissue. I went to see a doctor at 5438+0 1 in June. After the operation, the doctor actually caught more than 40 maggots from the patient's mouth. 165438+ 10/5 At 9: 00 am, the reporter got news from the First Affiliated Hospital of Nanchang University that the stomatology department of this hospital had encountered an unprecedented case: the patient's palate was "long" with big maggots.

Case 3

Time is unknown. A 46-year-old female patient in Luoping, Yunnan, had a long-term headache and was ineffective after repeated treatments. The patient went to Luoping County People's Hospital for medical treatment because of nosebleed. The doctor performed several sinus operations on her and took out 130 maggots from her brain!