Intestinal obstruction due to ileal metastasis of Ewing’s sarcoma

We present a case report of intestinal obstruction caused by ileal metastasis of Ewing’s sarcoma. The invasive tumoral segment of the ileum was removed and the bowel continuity was provided with end-to-end anastomosis. Histopathologic examination showed tumoral invasion of the ileal mucosa and ileal wall by small blue round cells of Ewing’s sarcoma.Keywords: Ewing’s sarcoma, ileal metastasis, intestinal obstructio

Tonsillar Plasmacytoma: clues on magnetic resonance imaging

Abstract Background Malignant plasma cell proliferation may present as a disseminated disease (multiple myeloma), a solitary plasmacytoma of bone, or an extramedullary plasmacytoma of soft tissue. The latter plasmacytomas represent approximately 3% of all plasma cell proliferations, and 80% develop in the head-and-neck region. The unexpected clinical presentation of such masses may be present. Case presentation Here, we report a rare case of primary tonsillar plasmacytoma in a 42-year-old female. The patient presented with asymmetric tonsillar hypertrophy that was resistant to antibiotherapy. Upon further workup, we found no evidence of multiple myeloma or light-chain disease. The patient underwent surgery and, at the last follow-up, exhibited no evidence of such disease. Conclusions In adults presenting with asymptomatic tonsillar enlargement, the possibility of submucosal masses should be considered, thus encouraging the radiologist to evaluate crypts within the palatine tonsil on a postcontrast MRI, besides enlargement and signal change

Diagnosis and clinical approach in primary ovarian ectopic pregnancy: A case report and review of the literature

Primary ovarian pregnancy is a rare type of extrauterinepregnancy with an incidence of 0.5-1% of all ectopic pregnancies.The incidence ranges from 1/40000 to 1/7000deliveries. We report a primary ovarian pregnancy in aspontaneus conception cycle in a 40-year-old womanwith no predisposing factor. The patient was admitted tothe emergency clinic with signs and symptoms of acuteabdomen with heamoperitoneum , in a preshock state. Anemergency laparotomy and wedge resection of the ovarywas performed. Histopathologic examination showedchorion villi embedded in the ovarian tissue in multiplesections in different areas of the material. This is a discussionabout this rare phenomenon, its ethiology, differentialand clinical diagnosis and a review of literature.Key words: Ectopic, pregnancy, ovar

Diagnosis in Childhood Abdominal Burkitt's Lymphoma

Background. The role of surgery has changed substantially over the years in abdominal Burkitt's lymphoma. Laparotomy without total excision of the tumor does not have a positive effect on survival, might cause complications, and delays initiation of chemotherapy. Here we present our diagnostic management of patients with abdominal Burkitt's lymphoma

Giant true cyst of the spleen with elevated serum markers, carbohydrate antigen 19-9 and cancer antigen 125

A 19-year-old woman presented with a left upper abdominal mass. Computed tomography of the abdomen showed a solitary cystic lesion in the splenic hilum, approximately 20×16 cm in size, demonstrating almost total displacement of the remaining splenic parenchyma. She had high serum concentrations of carbohydrate antigen 19-9 and cancer antigen 125. A splenectomy was performed. Immunohistochemical study confirmed the existence of an epithelial cyst. Following surgery, the serum concentrations of the tumour markers decreased gradually. True splenic cysts are rare and their origin is controversial. In splenic cysts with high serum concentrations of tumour markers, such as occurred in our patient, cystectomy or splenectomy were preferred to remove tumour marker-producing epithelium and to prevent recurrence after treatment. If the epithelial lining of the cyst cannot be detected under light microscopy, immunohistochemical study should be performed

Primary Lymphoma of the Ovary: A Case Report

WOS: 000360662600027Ovarian lymphoma is a rare malignancy. It can occur in two ways, primary or secondary. The tumor may act like it is an epithelial carcinoma. A case with a diagnosis of diffuse large B cell lymphoma as a primary tumour of the ovary was presented with the histopathologic and immunohistochemical profile and clinical features in order to enrich the awareness to the early diagnosis and treatment

Effects of chitosan on healing and strength of colonic anastomosis in rats Efeitos de quitosana na cicatrização e resistência de anastomose colônica em ratos

PURPOSE: To investigate whether chitosan application over colonic anastomosis line, provide reinforcement, and subsequently improve anastomotic healing. METHODS: Forty eight Wistar albino female rats were used and were randomly divided into four groups, 12 rats in each: The control groups (1 and 3) received no further treatment. The experimental groups (2 and 4) received chitosan application over the colonic anastomosis. After sacrifying rats at the end of the experiment (either on day three or on day seven, depending on the group), colonic bursting pressure, a hihydroxyproline level and histopathologic characteristics of the perianastomotic tissue were examined. RESULTS: At three days, chitosan and control groups had similar values for histopathologically. On day seven, chitosan group had significantly higher mean score of collagenization (p=0.007) and a significantly higher bursting pressure (p=0.038). CONCLUSION: Our study emphasizes the positive effect of chitosan in the process of collagenation in colonic anastomosis healing.<br>OBJETIVO: Investigar se a aplicação de quitosana em anastomose colônica promove resistência à tração e consequentemente a melhora na cicatrização. MÉTODOS: Foram utilizados 48 ratos Wistar fêmeas distribuídos em quatro grupos, 12 ratos em cada. Grupos controle (1 e 3) não receberam tratamento. Grupos experimento (2 e 4) receberam aplicação de quitosana na anastomose colônica. Após eutanásia após 3º ou 7º dias foram examinadas a tensão, o nível de hidroxiprolina e aspectos histopatológicos da anastomose. RESULTADOS: Após três dias os grupos controle e quitosana não apresentaram alterações histopatológicas. No sétimo dia o grupo quitosana apresentou significante elevação do escore de colagenização (p=0,007) e da tensão de ruptura (p=0,038). CONCLUSÃO: A quitosana apresentou bons resultados nos processos de colagenização e cicatrização de anastomose colônica