Cases reported "Neoplasm Metastasis"

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1/217. Obstructive cholecystitis due to metastatic melanoma.

    A patient with isolated metastases from cutaneous melanoma to the gall-bladder is reported. The patient presented clinically with obstructive cholecystitis. The course of melanoma is unpredictable and the possibility that an apparently unassociated condition is due to metastases should always be considered. Isolated metastases may respond well to radical surgery and reward the surgeon's efforts.
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ranking = 1
keywords = melanoma
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2/217. Surgical treatment for recurrent tumors of primary malignant melanoma of the esophagus: a case report and review of the literature.

    The purpose of this communication is to present a case of resection performed for local recurrent tumors of primary malignant melanoma of the esophagus (PMME) and to review the relevant literature. The patient was a 54 year-old man who had received an intraabdominal esophagectomy with a total gastrectomy for primary malignant melanoma of the abdominal esophagus in another hospital, in November 1995. After the initial operation, he was treated as an outpatient. In August 1997, computed tomography and ultrasonography revealed recurrent tumors in the dorsal pancreatic lymph node and in the right adrenal gland. The recurrent tumor of the dorsal pancreas directly invaded the dorsal pancreas parenchyma and occluded the superior mesenteric vein and splenic vein, and the other metastatic tumor in the right adrenal gland existed in the absence of circumference invasion. Metastases of the PMME were confirmed in the dorsal pancreas, the superior mesenteric vein, splenic vein, and right adrenal gland, and were removed by a total pancreatectomy on October 7, 1997. By immunohistochemical staining, we found that the focal areas expressed S-100 protein and HMB-45 antibody. Currently (February 1998), the patient is alive and disease-free. PMME is an extremely rare tumor with a poor prognosis for survival. Only 2 cases of removal of recurrent tumors, including the present case, have been reported. The treatment of choice is surgical resection, even in cases of recurrence, because radiotherapy and/or chemotherapy have not been proven to be beneficial; however, they may play a palliative role if surgery is not possible.
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ranking = 1.8736660819107
keywords = melanoma, malignant melanoma
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3/217. Metastatic melanoma of the maxilla presenting as a gingival swelling.

    Malignant melanoma metastatic to the gingiva has been reported only once. We present a case in which the occurrence of melanoma in the gingiva followed extraction of a periapically "abscessed" tooth. Since the initial periapical mass may well have been a metastatic tumor, particularly in a patient undergoing therapy for disseminated malignant disease, the need for biopsy of such lesions is emphasized.
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ranking = 1
keywords = melanoma
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4/217. Malignant melanoma with zosteriform metastases.

    melanoma is a tumor that has a high tendency to metastasize to the skin. Zosteriform metastases are a rare form of metastasizing melanoma. We describe a 79-year-old man with melanoma presenting with a dermatomal distribution and no visceral metastases.
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ranking = 1
keywords = melanoma
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5/217. A combined PET/CT scanner for clinical oncology.

    The availability of accurately aligned, whole-body anatomical (CT) and functional (PET) images could have a significant impact on diagnosing and staging malignant disease and on identifying and localizing metastases. Computer algorithms to align CT and PET images acquired on different scanners are generally successful for the brain, whereas image alignment in other regions of the body is more problematic. methods: A combined PET/CT tomograph with the unique capability of acquiring accurately aligned functional and anatomical images for any part of the human body has been designed and built. The PET/CT scanner was developed as a combination of a Siemens Somatom AR.SP spiral CT and a partial-ring, rotating ECAT art PET scanner. All components are mounted on a common rotational support within a single gantry. The PET and CT components can be operated either separately, or in combined mode. In combined mode, the CT images are used to correct the PET data for scatter and attenuation. Fully quantitative whole-body images are obtained for an axial extent of 100 cm in an imaging time of less than 1 h. When operated in PET mode alone, transmission scans are acquired with dual 137Cs sources. RESULTS: The scanner is fully operational and the combined device has been operated successfully in a clinical environment. Over 110 patients have been imaged, covering a range of different cancers, including lung, esophageal, head and neck, melanoma, lymphoma, pancreas, and renal cell. The aligned PET and CT images are used both for diagnosing and staging disease and for evaluating response to therapy. We report the first performance measurements from the scanner and present some illustrative clinical studies acquired in cancer patients. CONCLUSION: A combined PET and CT scanner is a practical and effective approach to acquiring co-registered anatomical and functional images in a single scanning session.
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ranking = 0.16666666666667
keywords = melanoma
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6/217. Diffuse malignant melanoma of the choroid simulating metastatic tumour in the choroid.

    We report a case of diffuse choroidal melanoma in a 51-year-old patient presenting as a yellow subretinal mass with secondary retinal detachment. This case highlights the diagnostic difficulty in such cases.
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ranking = 1.4157773879405
keywords = melanoma, malignant melanoma
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7/217. New approaches in the treatment of metastatic melanoma: thalidomide and temozolomide.

    Although melanoma is a relatively chemoresistant malignancy, systemic chemotherapy remains the primary treatment for metastatic melanoma. The observation of vasculogenic mimicry in aggressive melanoma has prompted investigation into using an antiangiogenic agent to enhance the antitumor activity of chemotherapy in metastatic melanoma. thalidomide (Thalomid) exhibits antiangiogenic activity and other biological modulatory effects that may provide additive or synergistic antitumor effects when given concurrently with chemotherapy. A phase I/II study of thalidomide and temozolomide in the treatment of metastatic melanoma is in progress. Preliminary results of this combination therapy have shown significant antitumor activity, including some striking responses in brain metastases.
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ranking = 1.5
keywords = melanoma
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8/217. Desmoplastic malignant melanoma.

    A 68-year-old man sought dermatologic attention for a tumor of the arm. biopsy specimen showed abnormal, essentially amelanotic, spindle-shaped cells in the cutis, greatly fibrotic stroma, and focal epidermal invasion. Desmoplastic malignant melanoma was diagnosed. The lesion was widely excised and axillary lymphadenectomy performed; one node showed metastasis. Nine months later, he died with widespread metastatic disease. To our knowledge, this is the first report of this entity since its delineation in 1971 and the only case in which diagnosis was established on initial biopsy and followed by definitive therapy. Desmoplastic melanoma has been confused with benign fibrosis, invasive fibromatosis, and fibrosarcoma, and is another example, with morpheaform basal cell carcinoma and sclerodermoid metastatic lesions from breast carcinoma, in which desmoplastic stroma may obscure the epithelial nature of cutaneous neoplasm.
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ranking = 1.7280550682589
keywords = melanoma, malignant melanoma
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9/217. Pedunculated malignant melanoma.

    A woman had a primary pedunculated malignant melanoma. This is a rare form of presentation and may result in clinical confusion with seborrheic keratosis, fibroepithelial papilloma, or granuloma pyogenicum. The aggressive nature of the lesion was indicated by the presence of erosion and bleeding. Though the tumor cells were present only in the pedunculated mass, it had metastasized to regional lymph nodes at the time of surgery.
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ranking = 1.5613884015923
keywords = melanoma, malignant melanoma
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10/217. FDG-PET in the detection of gastrointestinal metastases in melanoma.

    We report six cases of malignant melanoma metastatic to the small bowel in which the information obtained from fluorodeoxyglucose positron emission tomography (FDG-PET) contributed significantly to the management of the patients. In each of these cases the conventional diagnostic work-up missed findings that were important for treatment planning. We conclude that FDG-PET is a valuable modality in melanoma patients with suspected gastrointestinal involvement. It is also a sensitive technique for the diagnosis of other intra-abdominal as well as extra-abdominal metastases.
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ranking = 1.1456110136518
keywords = melanoma, malignant melanoma
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