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Results for “Retroperitoneal Neoplasms”

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At least 451 records · Page 25Linked to original sources
PubMed1999

[Retroperitoneal sarcomas: 1. Natural history and preoperative evaluation].

The disease is usually disseminated via the blood stream. These large tumors displace adjacent organs and are usually close to vital structures. High rate of local or peritoneal recurrence may be explained by resection problems. Local recurrence is the most frequent cause of patient death. No adjuvant treatment has proved to be beneficial on survival. Diffusion of the disease is usually hematogenous. Hepatic and pulmonary metastases are the most common, while lymph node invasion is very rare. This account for no systematic lymph node dissection in these tumors. Preoperative biopsy through a retroperitoneal route under CT scan vision is advised, before operation. NMR and CT scan are the best tools to assess extension of tumor through anatomical structures. Quality of surgical resection is the main factor which determine prognosis in term of local or peritoneal recurrence risk. This risk is best evaluated by pathological examination which must determine whether the specimen is or not complete.

Biopsy↗
PubMedDate not supplied

[A benign retroperitoneal schwannoma: a review of the literature and a report of a new case].

In a 42-years-old woman, an abdominal sonography was done, and a 10 x 9-cm solid cystic tumor on the left kidney appeared. Abdominal CT and arteriography showed a retroperitoneal heterogeneous mass surrounding and obstructing the ureteropelvic left junction. Tumor was removed under open surgery and the pathological study showed a benign schwannoma. We present this case because of its rarity 1%-10% of all primary retroperitoneal tumors.

Adult↗
PubMedDate not supplied

[Malignant stromal tumors of the duodenum. Report of a case].

The Authors report a rare case of undifferentiated duodenal malignant stromal tumour in a 69-years-old man radically managed by pancreaticoduodenectomy and resection of a liver metastasis. Several preoperative tests were performed (barium meal, endoscopy, ultrasonography and CT scan) but failed to yield a differential diagnosis between a tumour of the pancreatic head and a retroperitoneal neoplasm. The diagnosis was only histological. The tumour was considered to be high-grade due to its large size, high mitotic index, and the presence of necrosis and liver metastasis. Thorough surveillance revealed several hepatic metastases 29 months after resection, and chemotherapy performed at this stage proved completely ineffective. The patient died 38 months after surgery.

Aged↗
PubMed1975

Nongenital pelvic tumors found at gynecologic operations.

Sixty-nine nongenital pelvic tumors were foudn unexpectedly at gynecologic operations performed between 1960 and 1969, during which period 60,930 patients were examined in the gynecologic departments. The two largest groups of tumors were those of the colon, 18 instances, and retroperitoneum, 15.

Appendix↗
PubMed2001

Laparoscopic excision of retroperitoneal tumors: technique and review of the laparoscopic experience.

A technique for laparoscopic excision of benign retroperitoneal tumors, including a teratoma and two cystic lesions, is described. Laparoscopic resection of a 12-cm retroperitoneal teratoma was accomplished with the patient in the left lateral decubitus position. Medial mobilization of the ascending colon and the duodenum was required for access to the lesion. Resections of two cystic lesions (measuring 20 cm and 12 cm) were performed with the patients in the lithotomy position. The colon required medial mobilization in both cases to gain access to the cysts. Once the cysts were dissected from surrounding structures, they were punctured, and the aspirated fluid was sent for cytologic analysis. There were no complications or conversions. Mean operating time was 122 minutes (range, 80-190). Patients were discharged 1 day after surgery, requiring only nonsteroidal anti-inflammatory medications for analgesia. Retroperitoneal tumors can be resected laparoscopically with careful preoperative investigation and meticulous laparoscopic technique. A major advantage of laparoscopic resections is that the patient recovers rapidly with minimal morbidity.

Adult↗
PubMed2001

Pelvic neurilemmoma.

A case of a 37-year-old man admitted to our Department of Internal Medicine for medical evaluation of hypertension is reported. The patient had a 4-year history of oscillating hypertension prior to admission, however, with no major subjective complaints, except for pollakisuria. Clinical and biochemical assessment revealed no damage to target organs. Laboratory parameters showed normal values, except for hyperlipidemia. On routine ultrasonography of the pelvis confirmed a pelvic tumor of uncertain etiology, with no abdominal lymph node enlargement. No signs of metastasis were found. The patient was transferred to the Department of Surgery, where the tumor was removed in toto. Histopathologic analysis of the tumor, 11 x 8 x 8 cm in size, composed of cellular and mixoid areas with traces of collagenous connective tissue, necrosis, and tiny calcifications with scattered palisading nuclei and Verocay bodies, pointed to the diagnosis of a benign tumor, i.e. neurilemmoma. Postoperatively, the patient's subjective state was excellent, with normal blood pressure values, and without pollakisuria. A very large space-occupying lesion was responsible for compression of the neighboring organs, especially urinary bladder, resulting in pollakisuria. To our knowledge, pelvic localization of neurilemmoma, particularly a large one, is rare.

Adult↗
PubMed2000

[Ectopic splenic tissue mimicking a retroperitoneal tumor. A case report and literature review].

Ectopic splenic tissue can be found as congenital or acquired condition. It is occasionally symptomatic and very rarely can simulate a neoplastic disease, especially when it locates in the retroperitoneal space. A case of ectopic splenic tissue simulating a retroperitoneal tumor is reported. A 32-years-old female was admitted in the clinic for a tumor in the left retroperitoneal space, discovered by ultrasound and computed tomography. 9 years before, an operation for a pheochromocytoma with similar localization was performed as the tumor was removed together with the spleen. At this admission, the tumor was considered a local recurrence of the pheochromocytoma and was resected. The result of the histopathological examination showed a splenic tissue.

Adult↗
PubMedDate not supplied

A case of giant retroperitoneal liposarcoma.

A 44-year-old female patient presented to us with fever and increased abdominal girth. A CT scan showed a very large retroperitoneal mass displacing the right kidney. At operation three enormous retroperitoneal tumours displacing the ascending colon and the right kidney and compressing the inferior vena cava were removed. Histopathological examination revealed a myxoid retroperitoneal liposarcoma.

Adult↗
PubMedDate not supplied

[Surgical management of presacral sacrococcygeal teratomas, or with intrapelvic extension].

Two cases of sacrococcygeal teratomas that were successfully treated surgically through the abdominosacral route are reported. Besides, a series of 36 children diagnosed through a period of 30 years is reviewed and considerations are made on the importance the classification of teratomas has, to choose the best route of approach for the surgical removal of these tumors. Mention is made of symptoms that allow the diagnosis of presacral teratomas and of those that show intrapelvic or abdominal extension.

Female↗