1/10. Inflammatory (pseudosarcomatous) myofibroblastic tumor of the urinary bladder causing acute abdominal pain.Inflammatory myofibroblastic tumor is a reactive proliferation of myofibroblasts that rarely involves the urinary bladder. The cause of inflammatory myofibroblastic tumor is unknown but may represent an initial reactive process to an infectious agent or trauma that transforms into neoplastic growth. Cases reported in children, however, often lack any preexisting bladder pathology. The authors present a case in a young child that presented as acute abdominal pain. In general, these tumors follow a benign clinical course after resection, although close monitoring is essential given the rarity of this bladder lesion.- - - - - - - - - - ranking = 1keywords = sarcoma (Clic here for more details about this article) |
2/10. Small intestinal angiosarcoma leading to perforation and acute abdomen: a case report and review of the literature.A 76-year-old man presented to the emergency room with abdominal pain and fatigue. The patient had a history of gastrointestinal bleeding. An abdominal computed tomographic scan showed collections of free air in the abdomen with obstruction of the distal small intestine and multiple masses in the liver. laparotomy revealed a widespread malignant neoplasm in the abdomen, with multiple tumor nodules in the ileal wall, mesentery, and liver. The ileal wall was perforated within the area of one of the tumors. Pathologic examination of the lesion showed a neoplasm composed of solid sheets of spindle and undifferentiated cells, forming interlacing delicate vascular channels with atypical endothelial cells. The tumor cells were positive for the endothelial marker CD31, whereas reactivity for a broad panel of epithelial and other endothelial markers was negative. This case demonstrates that although angiosarcomas of the gastrointestinal tract are rare, they should be considered in cases of intestinal perforation or severe bleeding, especially in the elderly. A broad panel of immunochemical markers might be necessary to establish the pathologic diagnosis.- - - - - - - - - - ranking = 1.25keywords = sarcoma (Clic here for more details about this article) |
3/10. Abdominal inflammatory masses mimicking neoplasia in children-experience of two centers.Despite progress in modern imaging, some inflammatory masses are difficult to distinguish clinically from neoplastic processes. In such cases the pathology report has a great distinctive value, but even then the final diagnosis may be difficult to reach. Eight patients with abdominal tumors of inflammatory origin were treated in two institutions, the Department of Pediatric Surgery of the Medical University of Gdansk, poland, and Helios Center of Pediatric Surgery in berlin, germany, during the last 10 years. Four tumors were located in the pelvis, two in the liver, and two in the colonic mesentery. Five of them were inflammatory pseudotumors (two subclassified as inflammatory fibrosarcoma), one had nonspecific inflammatory changes, one was diagnosed as idiopathic retroperitoneal fibrosis, and one was diagnosed as bacillary angiomatosis. All patients underwent surgical tumor biopsy, excisional in four and incisional in four. All but two children underwent macroscopically complete tumor excision (four primarily, two secondarily). In one case the tumor resolved with antibiotherapy. Surgery in retroperitoneal masses was often extensive and associated with significant complications because of invasive tumor growth. In conclusion, intraabdominal inflammatory lesions may closely mimic neoplasia in children. Clinical doubts result in repeated biopsies, and for this reason excisional biopsy should be preferred. In some cases, when excisional biopsy is not feasible due to invasive growth of the tumor, delayed complete mass excision should follow, despite occasional significant morbidity. The etiology and exact nature of inflammatory pseudotumors are still obscure, and it is unknown whether they represent inflammatory lesions or true neoplasia.- - - - - - - - - - ranking = 0.25keywords = sarcoma (Clic here for more details about this article) |
4/10. Acute abdomen caused by a perforated inflammatory myofibroblastic tumor of the jejunum.Inflammatory myofibroblastic tumors are rare pseudosarcomatous tumors found in virtually all anatomic sites. Our case report describes an elderly female patient with an inflammatory myofibroblastic tumor in the proximal jejunum, accidentally discovered at laparotomy for an acute abdomen. The localization in the jejunum is a very rare finding, and perforation has not been described before.- - - - - - - - - - ranking = 0.25keywords = sarcoma (Clic here for more details about this article) |
5/10. Acute abdomen due to granulocytic sarcoma of the terminal ileum.A 57-year-old patient with chronic granulocytic leukemia in blast crisis and severe neutropenia is presented. This patient developed right sided peritonitis due to an isolated transmural granulocytic sarcoma of the terminal ileum. The affected segment was resected and the patient survived 4 more months. Thus, despite neutropenia, an aggressive surgical approach should be considered in a leukemic patient presenting with unexplained acute abdomen, since, as demonstrated here, a localized lesion which could not have otherwise been detected, was ultimately found and promptly resected.- - - - - - - - - - ranking = 1.25keywords = sarcoma (Clic here for more details about this article) |
6/10. Spontaneous rupture of the kidney.Two cases of spontaneous rupture of the kidney manifesting as acute abdomen are described. In both cases urgent transabdominal nephrectomy was carried out. The whole distal half of the kidney was tumorous and rupture, with extensive perirenal and retroperitoneal haemorrhage. Histological findings showed in the first instance renal liposarcoma, in the second instance an atypical lipoma of the kidney. The first patient survives 4 years, the second one year, after the operation both are in a good condition.- - - - - - - - - - ranking = 0.25keywords = sarcoma (Clic here for more details about this article) |
7/10. Torsion of leiomyosarcoma of Meckel's diverticulum.A rare case report of leiomyosarcoma of Meckel's diverticulum, which caused torsion and strangulation of the diverticulum, is presented. The clinical picture was similar to acute appendicitis, which was the working diagnosis when the 42-yr-old Arab woman was sent to surgery. Although rare, leiomyosarcoma is the most common tumor of Meckel's diverticulum, and has to be considered in the differential diagnosis of right lower abdominal pain.- - - - - - - - - - ranking = 1.5keywords = sarcoma (Clic here for more details about this article) |
8/10. High-grade endometrial stromal sarcoma in a 16-year-old girl.Endometrial stromal sarcoma (ESS) is a rare uterine malignancy with a variety of morphologic characteristics and clinical courses. We describe a case of high-grade malignant ESS in an adolescent girl, arising in a rudimentary uterine horn and presenting symptoms of an acute abdomen. The patient underwent a total abdominal hysterectomy with bilateral salpingo-oophorectomy and omentectomy due to a stage IVA high-grade ESS. An adjuvant chemotherapy and radiotherapy treatment was recommended, but 10 days after her discharge the condition of the patient deteriorated, with diffused metastases into the lungs and the abdomen, and finally she succumbed to the disease 1 month after her first admission to the hospital.- - - - - - - - - - ranking = 1.25keywords = sarcoma (Clic here for more details about this article) |
9/10. Perforation of the jejunum secondary to AIDS-related gastrointestinal Kaposi's sarcoma.intestinal perforation in human immunodeficiency virus-positive patients due solely to Kaposi's sarcoma (KS) has rarely been described. A homosexual man with acquired immunodeficiency syndrome-related KS who presented with an acute abdomen is presented. He was found to have a jejunal perforation through a small KS lesion. There were no infectious organisms identified at the site of perforation.- - - - - - - - - - ranking = 1.25keywords = sarcoma (Clic here for more details about this article) |
10/10. Pseudosarcomatous myofibroblastic tumor of the urinary bladder with massive intraperitoneal hemorrhage in a child.A 3-year-old boy presented with persistent abdominal pain, hematuria and facial pallor with progressive anemia. A computed tomography scan showed a massive intraperitoneal hemorrhage and tumor mass in the bladder. Histological examinations of the resected tumor revealed findings of pseudosarcomatous myofibroblastic tumor (PMT). The clinico-pathological features of this case warn us that PMT can cause acute abdomen syndrome with massive intraperitoneal hemorrhage.- - - - - - - - - - ranking = 1.25keywords = sarcoma (Clic here for more details about this article) |
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