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Background: Desmoid tumors are rare neoplasms that are locally invasive. However, optimal treatment strategies for recurrent desmoid tumors remain controversial. High-intensity focused ultrasound (HIFU) has been reported as a noninvasive modality for treating recurrent desmoid tumors. However, its efficacy against massive desmoid tumors or those with complex anatomies remains unclear. Methods: We developed a new therapeutic strategy called low-power cumulative HIFU and applied it to treat recurrent desmoid tumors. Results: We retrospectively collected data from 91 patients with recurrent desmoid tumors who underwent low-power cumulative HIFU treatment after surgical treatment failure. The mean ablation proportion of the HIFU treatment was 69.5%, and the objective response rate was 47.3%. The 5-year estimated progression-free survival rate for these patients was 69.3%. Conclusion: Low-power cumulative HIFU treatment could achieve significant efficacy and long-term control of recurrent desmoid tumors.
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We present a case report of the successful use of thoracic epidural analgesia for the surgical resection of a large recurrent desmoid tumor and forequarter amputation in an adolescent male. Spinal anesthesia has been reported for intra-operative management of desmoid tumor resection, however, there are no reported cases of thoracic epidural analgesia for this tumor. Thoracic epidural should be used with caution in this patient population due to risk of de novo tumor creation but can be useful adjuvant to multi-modal analgesia to decrease post-operative opioid requirement.
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A 74-year-old man was being investigated for a pancreatic insulinoma when an incidental mesenteric mass measuring 2.6 cm x 2.5 cm was noticed on CT imaging. A wait-and-see approach was decided on. Thirty-nine months later, the patient presented with symptoms of abdominal obstruction. CT images revealed the mesenteric mass filled majority of the abdominal cavity and measured 29 cm x 26 cm x 16 cm. The patient underwent an open bypass gastrojejunostomy which stopped working a few weeks later due to further compression by the tumour. A debulking surgery was performed: a right hemicolectomy and small bowel resection with excision of the desmoid tumour and bypass gastrojejunostomy. The tumour measured 12.6 kg and was macroscopically visualised to have a white cut surface with a focal translucent area. Microscopic analysis revealed bland spindle cells with pale eosinophilic cytoplasm showing no cytological atypia, in keeping with a mesenteric desmoid tumour. Currently, two and a half years from the debulking surgery, the patient remains well and in remission with planned surveillance.
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*Article is in Japanese* An 84-year-old man underwent laparoscopic descending colon resection for colon cancer with stage â… . Follow-up computed tomography(CT), 18 months after surgery showed a soft tissue density nodular mass, 30 mm in size, in the small intestinal mesentery. The surgical resection of the tumor was performed after a thorough examination. Histopathological examination showed spindle-shaped fibroblasts and abundant collagen fibers. Immunohistochemical staining was negative for c-kit and CD34 and positive for α-SMA and β-catenin. From the above, this tumor was diagnosed as intra-abdominal desmoid tumor.
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Aggressive fibromatosis (AF) is a rare, benign neoplasm originating from musculoaponeurotic stromal structures characterized by aggressive growth and infiltration of local tissues. To date, only six previous cases of AF involving the larynx have been reported. The present case was that of a 70-year-old female patient with a 5-year history of hoarseness and an enlarging neck mass consistent with aggressive recurrent fibromatosis. MRI displayed a large, solid mass arising from the left anterior cervical space displacing the trachea and upper airway to the right. At one year after the initial radical resection, the patient presented with recurrence. A second radical excision was performed not including a laryngectomy. Radiation therapy was considered for possible local treatment to prevent subsequent tumor recurrence. According to the literature, AF has recurrence rates of up to 40-70% within 18 months. There is only sparse literature to guide treatment. Using the mutations detected in the patient’s AF tissue, an Ingenuity Pathway Analysis (IPA) was used to guide treatment of the recurrence. In the present case, the IPA analysis indicated the use of pazopanib to treat the patient’s cancer. In general, surgery appears to be the treatment of choice for head and neck AF, but the management of recurrence is controversial.
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