Cases reported "Abdominal Neoplasms"

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1/105. Intra-abdominal embryonal rhabdomyosarcoma in an adult.

    rhabdomyosarcoma is an uncommon neoplasm in the adult population. Sporadic cases of primary rhabdomyosarcoma arising in the abdomen have been reported, but these cases are limited almost exclusively to the pediatric population. We report a well-documented case of primary intra-abdominal rhabdomyosarcoma in a 57-year-old woman. The patient presented with a pelvic mass and an elevated serum CA 125 and was referred to gynecologic oncologists at our institution for a presumed primary gynecologic malignancy. Intraoperatively, amorphous gelatinous tumor comprised a large portion of the peritoneal cavity. Surgical exploration of the abdomen failed to implicate any specific organ as the site of origin of the tumor. The overall histologic pattern of the resected tumor was most consistent with embryonal type rhabdomyosarcoma. To our knowledge this is the first well-documented case report of non-hepatobiliary, adult, intra-abdominal embryonal rhabdomyosarcoma in the English language literature. The presentation of a rare adult sarcoma mimicking a gynecologic malignancy was an unusual feature that complicated the diagnosis in this case.
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2/105. Extraskeletal myxoid chondrosarcoma of the knee.

    Extraskeletal myxoid chondrosarcoma is an uncommon neoplasm, accounting for less than 2% of all soft tissue sarcomas. It affects adult males with a median age in the fifth decade at the time of diagnosis. The tumor usually arises in the deep soft tissues, especially in the lower extremities. patients present with a gradually enlarging mass that may or may not be associated with pain. This report describes a 25-year-old man who initially presented with a 4- to 5-year history of right knee pain and an enlarging mass in the right knee. Evaluation revealed a cartilaginous neoplasm with no evidence of metastatic disease. The tumor was widely excised and an allograft reconstruction was performed. The patient was closely followed with an eventual above the knee amputation for recurrent myxoid chondrosarcoma. At 34 months, retroperitoneal metastases were noted on abdominal CT. The patient underwent a left radical nephrectomy, renal vein thrombectomy and enucleation of the mass in the right kidney, distal pancreatectomy, and splenectomy. The patient received postoperative chemotherapy. Forty-eight months after initial diagnosis, the patient was found to have recurrent abdominal and retroperitoneal lesions. At 64 months, the patient died from complications of extraskeletal myxoid chondrosarcoma.
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3/105. Giant abdominopelvic epithelioid angiomyolipoma associated with tuberous sclerosis: report of a case.

    tuberous sclerosis is a hereditary autosomal-dominant disease characterized by hamartomas that can develop in any organ. We report herein the case of a 34-year-old female with tuberous sclerosis and a huge abdominopelvic mass that started growing quickly 2 years after its diagnosis. The patient had undergone several previous operations for hydrocephalus and cerebral tubers, and a nephrectomy for right renal angiomyolipoma. On admission, she was in poor general health with renal failure, severe anemia, and weight loss. A laparotomy revealed that the tumor occupied the pelvis, the lower and part of the upper abdomen, and was hypervascularized, with an extremely irregular surface covered in nodules, vegetations, and areas of hemorrhagic necrosis. The development of the mass and the impossibility of recognizing the internal genital organs led us to assume that the formation had originated from these. Frozen-section examination indicated an undifferentiated tumor that had not been completely resected. Her postoperative course was complicated by bronchopneumonia and progressive renal failure. The patient died 10 days after surgery due to cardiorespiratory failure. A histological diagnosis of epithelioid angiomyolipoma was confirmed. Although it is presently impossible to determine whether angiomyolipoma with predominant epithelioid cells is more aggressive than typical angiomyolipoma, it definitively demonstrated local aggressive behavior in this patient.
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4/105. Rare presentation of actinomycosis as an abdominal mass: report of a case.

    PURPOSE: The purpose of this article was to report an unusual presentation of abdominal actinomycosis masquerading as a tumor. methods: The patient was a 54-year-old male who presented with vague abdominal discomfort and a palpable left lower quadrant mass defined on CT scan. Multiple intraoperative core biopsies were nondiagnostic, and he underwent en bloc resection of the mass and adjacent organs for a presumed tumor. RESULTS: Examination of tissue from deep within the excised specimen revealed sulfur granules diagnostic for actinomycosis. CONCLUSION: Abdominal actinomycosis is an extremely rare infection that can mimic multiple disease processes and requires accurate diagnosis for successful therapy. This novel presentation and a review of the literature are reported.
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5/105. Emergency stent-graft repair of a ruptured hepatic artery secondary to local postoperative peritonitis.

    PURPOSE: To describe the use of a stent-graft for emergent repair of life-threatening hepatic artery hemorrhage. methods AND RESULTS: A 57-year-old man with a 17-year history of myxoid liposarcoma underwent surgery for a recurrent abdominal mass. Multivisceral resection including a Kausch-Whipple procedure with an extended right hemicolectomy was performed. Three weeks later, an episode of gastrointestinal bleeding prompted surgical repair of the hepatic artery, which had been eroded by infection due to a leaking bilioenteric anastomosis. After 3 weeks of programmed abdominal lavage, bleeding recurred. angiography documented another rupture of the proximal hepatic artery. After an unsuccessful attempt at coil embolization, a Hemobahn stent-graft was implanted percutaneously during simultaneous cardiopulmonary resuscitation. hemostasis was secured, and the patient recovered. Over the 10-month follow-up, no bleeding or infection has been observed at the site of the repair, and flow through the hepatic artery endograft remains satisfactory. CONCLUSIONS: Percutaneous stent-graft placement can be employed for emergent treatment of visceral artery rupture in patients at high risk for conventional surgical repair.
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6/105. Laparoscopic port-site recurrence following surgery for a stage IB squamous cell carcinoma of the cervix with negative lymph nodes.

    BACKGROUND: Port-site metastases are commonly reported after laparoscopic surgery for ovarian cancer, but have also been reported in patients with cervical or endometrial cancer with positive lymph nodes. Recently, a case of port-site recurrence after laparoscopic surgery for a patient with node-negative early-stage adenocarcinoma of the cervix was reported. We report the first case of port-site metastasis in a patient with stage IB squamous cell carcinoma of the cervix with negative lymph nodes. CASE: A 31-year-old woman had a laparoscopy for pelvic pain. Under anesthesia, she was noted to have a grossly abnormal-looking cervix and a biopsy revealed squamous cell carcinoma. She was referred to a gynecological oncologist and underwent radical hysterectomy and pelvic lymph node dissection through a transverse lower abdominal incision 6 weeks later. Nineteen months postoperatively, she presented with a soft tissue mass in a suprapubic laparoscopic trocar site. CONCLUSION: It is postulated that cells dislodged at the time of cervical manipulation and biopsy may have passed through the fallopian tubes and implanted in the laparoscopic port site due to the "chimney effect" caused by the pneumoperitoneum.
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7/105. A case of rapidly growing ovarian squamous cell carcinoma successfully controlled by weekly paclitaxel-carboplatin administration.

    BACKGROUND: Primary squamous cell carcinoma of the ovary is uncommon and has a poor prognosis. Because of its rarity, the effective postoperative treatment is unknown. We describe a remarkable response of this tumor to weekly paclitaxel-carboplatin administration. CASE: A 53-year-old woman had rapidly growing primary squamous cell carcinoma of the ovary that metastasized to the abdominal wall and transverse colon after maximum cytoreductive surgery. The tumor was resistant to primary chemotherapy with cisplatin, vincristine, mitomycin C, and bleomycin. A combination of paclitaxel and carboplatin was used for second-line chemotherapy and was repeated every week. The patient tolerated the chemotherapy well and demonstrated a pathological complete response in the abdominal metastases following the five courses of chemotherapy. CONCLUSION: Weekly paclitaxel-carboplatin administration may be a safe and effective treatment for advanced and rapidly growing ovarian squamous cell carcinoma with primary resistance to chemotherapy.
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8/105. Fibromatoses of multicentric origin: a case report.

    We experienced a very rare case with fibromatoses of multicentric origin. One of the 2 intraabdominal fibromatoses showed a extremely rapid growing and another fibromatosis arising from the abdominal wall showed an invasive behavior. All lesions were diagnosed and resected simultaneously. This patient has been followed for 2 years postoperatively and no recurrent lesion has been detected so far.
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9/105. Intolerance to an extensively hydrolysed formula mistaken for postoperative diarrhoea in a child with neuroblastoma.

    BACKGROUND: Persistent diarrhoea has recently been reported as a common problem following surgical resection for advanced abdominal neuroblastoma. CASE STUDY: A 10-month-old child, who had previously had no nutritional problems whilst undergoing chemotherapy treatment for a stage IV neuroblastoma, developed severe diarrhoea following tumour resection. He required nutritional support and was commenced on a continuous overnight nasogastric feed of a non-milk protein hydrolysate feed (MCT Pepdite 0-2, S.H.S. International Ltd, UK) His diarrhoea persisted and it was assumed that this was a postoperative problem which in time would regress. Two months later the child was admitted with a rectal prolapse, and a colonoscopy and biopsy suggested allergic protocolitis. The diarrhoea resolved rapidly on stopping the feed. CONCLUSION: Although he was never re-challenged with the non-milk protein hydrolysate, it appears that he had a rare intolerance to an extensively hydrolysed protein formula which was masked by the assumption that his diarrhoea was a postoperative problem.
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ranking = 6
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10/105. Perianaesthetic risks and outcomes of abdominal surgery for metastatic carcinoid tumours.

    patients with metastatic carcinoid tumours often undergo surgical procedures to reduce the tumour burden and associated debilitating symptoms. These procedures and anaesthesia can precipitate a life-threatening carcinoid crisis. To assess perioperative outcomes, we studied retrospectively the medical records of adult patients from 1983 to 1996 who underwent abdominal surgery for metastatic carcinoid tumours. Preoperative risk factors, intraoperative complications and complications occurring in the 30 days after surgery were recorded. Perioperative complications or death occurred in 15 of 119 patients (12.6%, exact confidence interval 7.2-19.9). None of the 45 patients who received octreotide intraoperatively experienced intraoperative complications compared with eight of the 73 patients (11.0%) who did not receive octreotide (P=0.023). The presence of carcinoid heart disease and high urinary output of 5-hydroxyindoleacetic acid preoperatively were statistically significant risk factors for perioperative complications.
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ranking = 8
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