Cases reported "Retroperitoneal Neoplasms"

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1/1366. Pseudomyxoma retroperitonei with spontaneous skin fistula.

    We describe the imaging features in a patient with pseudomyxoma retroperitonei arising from a mucinous carcinoma of the appendix with spontaneous development of a skin fistula. The thick wall and septa characteristic of pseudomyxoma were best demonstrated on gadolinium-enhanced magnetic resonance imaging. This patient illustrates (a) the potential of pseudomyxoma to cause skin fistula and (b) the possibility that this intraabdominal process can first present as a dermatologic complication. ( info)

2/1366. Paraneoplastic pemphigus associated with follicular dendritic cell sarcoma arising from Castleman's tumor.

    Paraneoplastic pemphigus (PNP) is associated with various forms of underlying neoplasia. We report a patient with PNP associated with an intraabdominal follicular dendritic cell sarcoma that developed from a Castleman's tumor that had preexisted for 40 years. ( info)

3/1366. liver transplantation for metastatic hemangiopericytoma associated with hypoglycemia.

    We report a case of successful liver transplantation in a young man with metastatic hemangiopericytoma confined to the liver. He had a primary retroperitoneal hemangiopericytoma removed in 1982 and was diagnosed as having liver metastases 8 years later. Subsequently, he developed hypoglycemia, which did not respond to chemotherapy. hepatectomy and transplantation resolved his hypoglycemic attacks. He remained well and symptom free for 4 years. liver transplantation can provide effective palliation and should be considered in carefully selected patients with localized metastatic cancer. ( info)

4/1366. Bone metastases from a paraganglioma. A review of five cases.

    Paragangliomas are infrequent, usually benign tumors developed from neuroectoderm cells. The neck is the most common location, although some cases arise within the abdominal cavity, usually in the retroperitoneal space. We report five cases with bone metastases. In three patients, convincing evidence was obtained that the primary was in the retroperitoneal space. Clinical manifestations of metastatic bone disease occurred up to 17 years after the diagnosis of paraganglioma. Useful data were obtained from plain radiographs, magnetic resonance imaging, serum and urine catecholamine assays, and above all meta 123iodobenzylguanidine scintigraphy. Histologic and immunohistochemical studies of the lesion yielded the definite diagnosis. Surgery and radiation therapy are the two mainstays of therapy. Although rare, metastatic forms of paraganglioma should be borne in mind. This diagnosis should be entertained in patients with bone lesions and recent-onset arterial hypertension, irrespective of whether they report a history of surgery for a tumor, and even if this tumor was removed many years earlier and labeled benign. ( info)

5/1366. Pseudomyxoma retroperitonei.

    We report a rare case of pseudomyxoma retroperitonei in a 58-year-old woman with a past history of severe appendicitis. The imaging showed a multicystic mass similar to pseudomyxoma peritonei, but the tumor was located in the retroperitoneal space. ( info)

6/1366. Embryonal rhabdomyosarcoma with only numerical chromosome changes. Case report and review of the literature.

    An embryonal rhabdomyosarcoma, presenting as a retroperitoneal mass in a 15-year-old girl, is reported. The histological and immunohistochemical picture was typical, except for the presence of focal chondroid differentiation. Interestingly, expression of the "muscle markers" desmin and alpha-sarcomeric actin was present in the latter areas. cytogenetic analysis showed a hyperdiploid karyotype without structural chromosome changes. The pertinent literature on the subject is reviewed. Hyperdiploidy of the clonal type seems to occur frequently, but no characteristic karyotype is so far emerging. ( info)

7/1366. Obstructive uropathy due to primary retroperitoneal tumour (leiomyosarcoma): report of 2 cases and review of the literature.

    Two cases of primary retroperitoneal leiomyosarcoma presenting with obstructive uropathy which were successfully treated by surgical excision are reported. The classification of primary retroperitoneal tumours and their symptomatology, treatment and prognosis are discussed in detail based on a review of the literature and the current experience of treating these tumours by combination therapy. It is felt that with advances in the diagnosis and therapy the prognosis is likely to improve. ( info)

8/1366. Late recurrence with malignant degeneration of testicular teratoma. Case report.

    Radical orchiectomy was performed on a 25-year-old man for benign mature teratoma. A synchronous without change 3 cm retroperitoneal mass was followed for five years. The mass enlarged and became symptomatic twelve years after orchiectomy. Excision of the mass revealed a non-seminomatous germ cell tumor. Possible explanation is malignant degeneration of the teratomatous elements. Testicular teratomas should be treated as potentially malignant non-seminomatous tumor. ( info)

9/1366. Two cases of neuroblastoma presenting to the emergency department.

    neuroblastoma is the second most common malignant solid tumor in the pediatric population. Recent advances in treatment options and identification of prognostic subsets have made early detection important. Early classification into a favorable stage and subset may carry a 10-year survival of about 90% (1). With newer treatment regimens, the probability of long-term survival in patients with metastatic disease has also increased about fourfold since 1979 (2). Emergency physicians can contribute to improved morbidity and mortality with appropriate evaluation and disposition of the patient presenting with neuroblastoma. Two patients, a 6-month-old and a 2-week-old, presented to the Emergency Department with weakness. Both had a presumptive diagnosis of neuroblastoma made by the emergency physician. A brief discussion of the incidence, presentation, and diagnosis of neuroblastoma follows. ( info)

10/1366. Cervical sarcoma botryoides. A case report.

    BACKGROUND: Sarcoma botryoides is a rare gynecologic malignancy. Reported treatment protocols range from localized resection of the tumor to radical surgery and adjuvant chemotherapy. Recently, limited excisional surgery combined with chemotherapy has contributed to excellent survival rates and preserved bladder and rectal function. CASE: We report a case of cervical sarcoma botryoides with minimal invasion. The patient had primary surgical treatment with complete resection of the tumor without adjuvant chemotherapy. Four months after surgery she presented with extensive metastatic retroperitoneal disease and died two weeks later. CONCLUSION: The clinical course of this patient suggests that complete surgical resection in cases of localized disease is not adequate therapy for sarcoma botryoides. Adjuvant chemotherapy should always be used, even at a very early stage. ( info)
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