1/761. Detection of EWS-WT1 fusion mRNA in ascites of a patient with desmoplastic small round cell tumor by RT-PCR.desmoplastic small round cell tumor (DSRCT) is a rare, aggressive malignancy characterized cytogenetically by a unique translocation of chromosomes 11 and 22 [t(11:22)(p13:ql2)], resulting in fusion of the EWS and WT1 genes. The presence of a unique fusion mRNA in DSRCT allows disease detection and diagnosis by reverse transcription polymerase chain reaction (RT-PCR), as previously described in fixed paraffin-embedded material. In this report, EWS WT1 fusion mRNA was detected in ascites from a patient with DSRCT by RT-PCR. RT-PCR results confirmed the diagnoses of DSRCT and of malignant ascites at the molecular level. RT-PCR assays for specific molecular markers, such as EWS-WT1 fusion mRNA, are potentially powerful methods that can complement routine histological, cytological, and/or immunohistologic assays.- - - - - - - - - - ranking = 1keywords = malignancy (Clic here for more details about this article) |
2/761. Small cell lung cancer accompanied by lactic acidosis and syndrome of inappropriate secretion of antidiuretic hormone.Lactic acidosis is a rare complication in lung cancer. We report a case of lung cancer accompanied by both syndrome of inappropriate secretion of antidiuretic hormone (SIADH) and lactic acidosis. A 70-year-old man was referred to our hospital for examination of a left hilar mass shadow on a chest x-ray film. Small cell lung cancer (SCLC) was demonstrated by brushing the bronchial mucosa of the left lower lobe bronchus. His laboratory data showed SIADH and lactic acidosis that were probably due to SCLC. Fluid restriction improved SIADH, and combination chemotherapy for SCLC improved the lactic acidosis although the tumor size did not change.- - - - - - - - - - ranking = 39.858466235364keywords = cancer (Clic here for more details about this article) |
3/761. A case of long-term survival with stage IV small cell lung cancer and early-stage central-type squamous cell lung cancer treated by photodynamic therapy.The present report is on a 67-year-old man with stage IV small cell lung cancer and early-stage centrally located squamous cell cancer of the lung. He was diagnosed as small cell lung cancer with multiple metastasis to the ipsilateral lung and was found to have a central-type early-stage squamous cell cancer by bronchoscope. After obtaining a complete response to the small cell lung cancer with chemotherapy and radiotherapy, photodynamic therapy was applied to the squamous cell carcinoma, resulting in complete disappearance of the tumor. recurrence of small cell cancer occurred at the ipsilateral lung and this patient died of small cell cancer 8 years after initiation of treatment. Post mortem examination confirmed complete disappearance of squamous cell cancer treated by photodynamic therapy. This is a rare case of long-term survival with stage IV small cell lung cancer and early-stage central-type squamous cell lung cancer successfully treated by photodynamic therapy.- - - - - - - - - - ranking = 102.49319889094keywords = cancer (Clic here for more details about this article) |
4/761. Metastasis-induced acute pancreatitis in a patient with small cell carcinoma of the lung.Acute pancreatitis in cancer patients can be secondary to the malignant process itself or a complication of antineoplastic agent administration. However, acute pancreatitis caused by metastatic carcinoma of the pancreas is an uncommon condition with a poor prognosis. We report a case of a 63-year-old man with small cell carcinoma of the lung, who developed acute pancreatitis lately. Thirteen months earlier, he developed small cell carcinoma of the lung and received 6 cycles of chemotherapy. Abdominal CT scan showed swelling of the pancreas with multiple masses. The patient was managed conservatively and pancreatitis subsided. This case indicates that metastasis induced acute pancreatitis can be a manifestation of lung cancer, especially in small cell carcinoma.- - - - - - - - - - ranking = 11.388133210104keywords = cancer (Clic here for more details about this article) |
5/761. The expanding clinical spectrum of desmoplastic small round-cell tumor: a report of two cases with molecular confirmation.desmoplastic small round cell tumor (DSRCT) is an aggressive neoplasm characterized by a consistent histological appearance, a unique immunohistochemical profile, and a specific chromosomal translocation. DSRCT is also hallmarked by distinctive clinical features. Most tumors arise in adolescent or young adult males, present as bulky abdominal masses, and diffusely spread along the peritoneal surface. We report two cases of DSRCT that do not fit this typical profile. One case involved the abdominal cavity of a 76-year-old woman. The other case arose in the parotid of a 22-year-old man. Histologically, the tumors showed the characteristic features of DSRCT. Immunohistochemically, the tumors showed positivity for cytokeratin, desmin, and neuron-specific enolase. Genetically, the tumors expressed the EWS-WT1 chimeric transcript. These two cases expand the differential diagnosis for poorly differentiated small-cell tumors that involve elderly patients or arise in the parotid. Moreover, they challenge the popular notion that DSRCT is a "blastomatous" tumor derived exclusively from the primitive mesothelium.- - - - - - - - - - ranking = 4.9762979730014keywords = neoplasm (Clic here for more details about this article) |
6/761. Small-cell carcinoma of the rectum: report of two cases.Small-cell carcinoma of the rectum is an infrequent pathologic finding, and its precise incidence is unknown. Its incidence is less than 0.2 percent among all colorectal cancers. This tumor manifests highly aggressive behavior. The treatment of choice is combination chemotherapy similar to that used for small-cell carcinoma of the lung, but in small localized tumors surgery plus chemotherapy is an alternative. We present two cases of small-cell carcinoma of the lower rectum and a review of the literature.- - - - - - - - - - ranking = 5.6940666050521keywords = cancer (Clic here for more details about this article) |
7/761. Pulmonary small cell carcinoma associated with sarcoid reactions: report of a case.A 45-year-old male was admitted to our hospital for investigation of a nodular shadow in segment 5 of the right lung on a chest computed tomogram. A right middle lobectomy with mediastinal lymph node dissection was performed under a diagnosis of lung cancer, and histologic examination confirmed small cell carcinoma. There were sarcoid reactions in the resected lymph nodes and the lung parenchyma, but no signs of systemic sarcoidosis were evident. Sarcoid reactions are rarely observed in the regional lymph nodes draining malignant tumors. Moreover, while they are most common in squamous cell carcinoma of the lung, they extremely rare in small cell carcinoma. To our knowledge, this is only the third report of this unusual entity in the English and Japanese literature.- - - - - - - - - - ranking = 5.6940666050521keywords = cancer (Clic here for more details about this article) |
8/761. Special problems in cervical cancer management.Cervical cancer is easily recognized when it presents as a visible lesion, but a problem arises when it adopts unusual presentations. Cervical cancer can develop high in the endocervical canal, beyond the reach of cone biopsy. Copious vaginal discharge from cervical adenocarcinoma may lead to a false-negative Papanicolaou (Pap) smear. Treatment of cervicitis can result in a delay in diagnosis. Successful and timely diagnosis and treatment of cervical cancer requires experience and vigilance. Careful intraoperative palpation of the cervix and uterus can help determine the location and extent of the lesion. Flexibility during surgery is required to utilize intraoperative findings and thus optimize treatment. Pitfalls of cervical cancer diagnosis and treatment with actual case presentations are presented along with other special problems in cervical cancer management such as incidental findings of cervical cancer in hysterectomy specimens, treatment of cervical stump cancers, and unusual cervical cancer cell types.- - - - - - - - - - ranking = 68.328799260625keywords = cancer (Clic here for more details about this article) |
9/761. Small cell carcinocythemia.Tumor cells circulate in the blood, but it is unusual to find cancer cells on a routine peripheral smear. The term carcinocythemia is used to describe this phenomenon. Four patients have been reported previously with small cell lung cancer and carcinocythemia. A fifth case is described in this article. These patients presented with advanced disease and had generalized lymphadenopathy and liver involvement; 3 had splenic metastases. All of these patients experienced rapid clinical deterioration. death occurred 3 days to 2 weeks from the time carcinocythemia was detected. The presence of small cell carcinocythemia can be one of the manifestations of end-stage disease and is associated with an extremely poor prognosis.- - - - - - - - - - ranking = 11.388133210104keywords = cancer (Clic here for more details about this article) |
10/761. Bone agent localization in hepatic metastases.We present the bone scintigrams of two patients, which demonstrate diffuse extraosseous uptake of a bone agent in metastatic masses in the liver, one from a primary lung tumor and one from a primary breast tumor. The bone imaging agent did not localize in the brain metastases in these patients. CTs of the abdomen in both patients showed massive metastases in the liver with multiple areas of tumor necrosis. The CT of the abdomen of the breast cancer patient showed multiple small hepatic calcifications. autopsy revealed massive tumor necrosis with calcifications in the enlarged liver. In routine bone scintigraphy, diffuse uptake of bone agents in the liver of a patient with a known malignancy should be considered suggestive of massive hepatic metastases.- - - - - - - - - - ranking = 6.6940666050521keywords = cancer, malignancy (Clic here for more details about this article) |
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