(Disclaimer: This article is only for scientific purposes, in order to protect the privacy of patients, the following content of the relevant information has been processed) Abstract: misshapen tumors are mostly benign, the most common in the lungs, and occasionally in the spleen, at this time known as splenic misshapen tumors. 58-year-old Mr. Lu was admitted to the hospital for treatment of unexplained abdominal pain, and was diagnosed as a splenic tumor on examination, and was treated with interventional therapy, followed by surgical resection, and pathologically confirmed to be a tumor of the spleen. Pathology confirmed the diagnosis of splenic misshapen tumor. The patient was hospitalized for 3 days and the lesion was resected without complications such as abdominal infection and fever after surgery. Basic information] Male, 58 years old [Disease type] Splenic anaplastic tumor [Hospital] The First Affiliated Hospital of Kunming Medical University [Date of consultation] February 2021 [Treatment plan] Interventional therapy, splenic tumor resection [Period of treatment] 3 days in the hospital, 2 months follow-up [Treatment effect] The lesion was resected, and there were no complications such as abdominal infections and fever after the operation. On Sunday morning, Mr. Lu came to our department. Mr. Lu said that he had been suffering from stomach pain for 3 consecutive days without any improvement. At first, he thought that he had caught a cold or had indigestion, but later he found out that it was not a problem of defecation, but just a simple feeling of pain in the abdominal cavity, and that he was usually a little bit high blood pressure, which was under good control after taking medication. According to Mr. Lu’s description, he was given a physical examination, which revealed that the patient’s abdomen was flat, no bowel shape or peristaltic wave was seen, there was pressure pain in the left upper abdomen, no rebound pain or muscle tension, no abnormal mass was palpated, the liver and spleen were not palpated, Murphy’s sign was positive, there was no percussion pain in the liver and kidney area, the mobility turbidity was negative, and the bowel sounds were normal. According to the return of outpatient CT examination, the patient’s spleen was enlarged in size and there was a round-like mixed density lesion in the spleen, which was initially considered to be a splenic tumor, so he was admitted to the hospital for treatment. After admission to the hospital, CT examination was performed again. Plain scanning showed that the spleen was enlarged, and a slightly low density mass was seen in the spleen. Enhanced scanning showed that the edges of the mass in the arterial phase showed marginal patchy enhancement, and the mass in the portal phase showed gradual and delayed enhancement, and a patchy and slightly low density area was still seen in the spleen. As the patient’s family requested interventional therapy first, the patient was given super-liquefied iodized oil and gelatin sponge adhesive embolization of blood vessels during the interventional procedure. After the postoperative review of CT, the patient was considered to have splenic anaplastic tumor, so splenic tumor resection was performed. During the operation, a mass of about 8 cm×7 cm in size was found in the spleen, which was light yellow in color and had an exophytic growth, and the boundary between the mass and the spleen was clearly visible when the mass was dissected, and the diagnosis of splenic anaplastic tumor was confirmed according to the postoperative pathology report. (CT: plain scan showed an enlarged spleen with a slightly low-density mass inside) (enhanced scan showed marginal patchy enhancement at the edge of the mass in the arterial phase, and gradual delayed enhancement in the mass in the portal phase, with a patchy, slightly low-density area still seen inside). The patient’s family requested that intervention be performed first. As the patient’s family requested interventional therapy first, the CT was reviewed after the intervention, and a splenic malformation tumor was considered. Surgery was performed, and the lesion was removed. The patient did not experience any complications such as abdominal infection or fever after surgery. He was discharged from the hospital after 3 days and was followed up for 2 months after surgery. Precautions We are glad that the patient got a better result after active treatment, but after discharge from the hospital, he should be followed up regularly, take medication as prescribed by the doctor, and contact with the doctor in time if any uncomfortable symptom occurs. 1, the patient is discharged from the hospital within 6 months, it is recommended that every 2 months to be on time for re-examination, follow-up period if abdominal pain and discomfort occurs again, you should immediately consult the doctor for examination, to avoid delays in delaying the diagnosis and treatment of the disease. 2.Patients should pay attention to the postoperative care of the surgical wound, pay attention to timely cleaning and disinfection, to avoid secondary infection. 3.Patients are recommended to eat more high energy, high protein, fiber-rich foods, such as chicken, fish, milk, soy, eggs, etc., avoid high fat, high sugar, high salt diet, drink more water, eat more fresh fruits and vegetables, supplement vitamins and trace elements. V. Personal perception Splenic malformation tumor is relatively rare, lacking specific clinical manifestations and biochemical indexes, but it is a benign lesion, which has less impact on patients, and is mainly treated by way of surgery. 1, the misshapen tumor itself is a benign disease, as the patient in this article, if the lesion is located in the spleen, the discovery is more timely, basically will not cause obvious impact, can be treated by surgical resection. 2.Patients do not need to worry too much after learning that they suffer from an anaplastic tumor, as long as they keep a good mindset, adjust their emotions, face up to the disease, and accept the treatment positively, most of them can recover well.