Retroperitoneal Leiomyosarcoma with Left Hip Pain as its Clinical Manifestation: A Case Report and Literature Review
Abstract Background: Leiomyosarcoma is a malignant tumor that originates from smooth muscle tissue, and can occur in multiple organs and tissues of the abdominal cavity, and most often in the retroperitoneum. It can occur at any age, usually 40 to 70 years old, and it is more common in women. The main clinical manifestations were abdominal discomfort, abdominal mass, abdominal pain, weight loss, nausea, vomiting or edema of the lower limbs. It is easy to invasion, recurrence and metastasis, and its prognosis is poor. Surgical resection is the preferred treatment method. Case presentation: A 55-year-old woman had pain in the left hip more than 6 years. Abdominal enhanced CT and MR showed that the tumor was located on the left side of psoas major muscle. She underwent surgical treatment, and the postoperative pathology was leiomyosarcoma. No other treatment was performed after the operation. The patient has been followed up for 78 months and no tumor recurrence. Conclusions: Retroperitoneal leiomyosarcoma is a rare type of malignant tumor with no specific clinical manifestation. Because of its atypical clinical manifestations, particular attention should be paid to avoid misdiagnosis and missed diagnosis.