BACKGROUND Leiomyosarcoma is the most common primary malignancy of the inferior vena cava (IVC), and represents approximately 10% of primary retroperitoneal sarcomas. Leiomyosarcoma presents with non-specific symptoms, including abdominal pain or back pain. There is an increased incidence in immunosuppressed individuals. CASE REPORT An unusual presentation of IVC leiomyosarcoma is reported in a...

Leiomyosarcoma is one of the most common mesenchymal tumors. Proteomics profiling analysis by reverse-phase protein lysate array surprisingly revealed that expression of the epithelial marker E-cadherin (encoded by CDH1) was significantly elevated in a subset of leiomyosarcomas. In contrast, E-cadherin was rarely expressed in the gastrointestinal stromal tumors, another major mesenchymal tumor ...

Leiomyosarcoma arising in the head and neck region is a rare entity. Auricular involvement by the disease is further rarer with few cases reported in the literature. Usually auricular leiomyosarcoma is a disease of middle-old age. We report a case of leiomyosarcoma of the postauricular region in a young adolescent female. Surgery along with adjuvant radiotherapy was used for complete cure. Pati...

Primary leiomyosarcoma of the bone is a rare malignancy. Clinical follow-up suggests that primary osseous leiomyosarcoma has an aggressive biologic behaviour with poor survival time. We report a case of primary leiomyosarcoma arising from the proximal metaphysis of the right tibia of a 55-year old woman with a long follow-up period, without recidivism. Primary leiomyosarcoma has to be considere...

Perineal leiomyosarcoma is an extremely rare and aggressive cancer with a high metastatic potential and no defined standard treatment. There are only a few (six) reported cases in the literature. We report the case of a 67-year-old woman with a perineal leiomyosarcoma arising at the same site of a previously resected superficial angiomyxoma. Initially, she was treated for a presumptive recurren...

Leiomyosarcoma accounts for only a small percentage of colorectal malignancies and remains a difficult disease to diagnose and treat. Here, we describe a case of leiomyosarcoma in a middle-age female first identified on colonoscopy. The cancer had invaded the posterior vaginal wall necessitating an abdominoperineal resection with partial vaginectomy and pelvic floor reconstruction with neovagin...

Leiomyosarcomas of the breast are rare tumors. Less than 16 such cases have been reported in the literature so far. We present a case of a 44 year female patient who was found to have primary leiomyosarcoma of the breast.

A 76-year-old Japanese man was referred to our hospital with chief complaint of right hypochondoralgia. Abdominal ultrasound showed a retroperitoneal tumor in the suprarenal region of the right kidney. Computed tomography revealed an enhanced lobular tumor with irregular, circumscribed, and indistinct border. Ultrasound-guided biopsy was performed. The tumor consisted of spindle-shaped cells wi...

Patients with unresectable advanced uterine leiomyosarcoma have a very poor prognosis because no effective chemotherapeutic protocols exist. There are currently few established primary human uterine leiomyosarcoma cell lines that can be used to investigate effective therapies. To overcome this problem, we carried out long-term in vitro cell culture and/or nude mouse transplantation and successf...

Leiomyosarcoma of the broad ligament is a rare tumor and according to our knowledge only twenty cases have been reported in the English literature. Gardner et al. emphasize that, “these tumors occur on or in the broad ligament, but are completely separated from and in no way connected with either the uterus or the ovary” [1]. On the other hand metastasis of leiomyosarcoma to the abdominal wall ...