Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0027627 (metastases)
 103,950 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The authors report a patient treated with radiation therapy for a lumbosacral chordoma. The first and only evidence of metastatic disease was an eyelid cyst. This case is unusual for several reasons. First, eyelid metastases are rare; they are much more uncommon than metastases to the uvea or orbit. Second, metastatic tumors to the eyelid are usually manifestations of widespread disease and seldom occur as a solitary focus of dissemination. Third, the clinical presentation of our patient's lesion as an eyelid cyst is uncommon for a metastasis to the eyelid. Finally, to the best of our knowledge, all previously reported tumors metastatic to the eyelid have been carcinomas; this is the first report of a metastatic soft-tissue tumor to the eyelid.
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PMID:Lumbosacral chordoma metastatic to the eyelid. 365 73

Primary ocular melanocytic neoplasms from 91 dogs were divided into two groups by histologic criteria. Seventy-five were benign and composed of spindle-shaped and large polyhedral melanocytes similar to those of human ocular melanocytomas. Fifty-nine of these originated in the uvea where most resulted in uveitis, glaucoma, or hyphema prior to enucleation. None metastasized. Nineteen melanocytomas were limbal tumors. None metastasized, but three of nine incompletely excised tumors were found within the anterior chamber 2 to 3 years after the initial removal. Sixteen uveal melanocytic neoplasms were histologically malignant. Three had confirmed metastases, all within 3 months of enucleation. Cell type or pattern of growth within the globe were not predictive of biologic behavior. Our data suggest that the mitotic index is the best criterion for histologic identification of ocular melanomas with high metastatic potential. We propose that the classification of primary ocular melanomas be simplified to include only two categories: melanocytoma (benign) and melanoma (potentially malignant). Further behavioral data may justify a grading scheme for melanomas based upon mitotic index.
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PMID:Morphology and behavior of primary ocular melanomas in 91 dogs. 375 Jul 35

22 primary intraocular malignant melanomas in the dog and 5 in the cat were classified histologically. Pigmented epithelioid cells and mixed cell type melanomas with high reticulin fiber content and areas of necrosis were associated with the highest mortality rate. Metastases were found in one case each in the dog and the cat. The average age at diagnosis was 8 years in the dog and 9 years in the cat. There was no indication that intraocular melanomas are more prevalent in certain breeds. In the dog the cases were equally distributed between the sexes, whereas in the cat males were overrepresented. The most frequent location for the tumor was the uvea anterior (ciliary body). Bilateral tumor expression was observed once in a dog. In all cases the clinical diagnosis, tumor induced secondary effects, differential diagnosis and catamnesis are given.
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PMID:[Primary intraocular malignant melanomas in dogs and cats]. 407 32

Cell immunity was followed in patients with malignant melanoma of the uveal tissue with the aid of LAI (leukocyte adherence inhibition assay). The LAI test proved positive in 59 out of 65 patients with histological evidence of malignancy of the melanoma (90.7%). The test was repeated three to six months following excision of the tumor from the eye in 48 patients and in 19 of them (39.6%) it was found to be negative. All these patients have survived and after a mean lapse of 2.5 years following the surgical intervention no metastases have been observed. As against this, LAI positivity persisted in the remaining 29 patients (60.4%), with metastases present in the liver or the eyeball in 8 of them (27.6%) during the follow-up period (1-4 yrs). Out of 39 patients with the diagnosis of suspected malignant melanoma of the uveal tissue, the LAI test proved positive in 17 (43.6%), but as subsequently ascertained, 6 of these (15.4%) had benign choroid nevi. In 6 further patients with suspected malignant melanoma of the uvea in whom the LAI test had been negative, this disease was subsequently ruled out. From a control group of 101 patients with various non-tumorous diseases of the eyes, a false positivity of the LAI test was noted in only two (1.98%).
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PMID:Further study of specific immunoreactivity in patients with malignant melanoma of uveal tissue by LAI assay. 717 45

Two cases (four eyes) of medullary thyroid carcinoma with metastases in the choroid, ciliary body and iris are described for the first time. In one eye the choroidal metastases were destroyed clinically by photo- and cryocoagulation. In another eye coagulation of a tumor may have facilitated transscleral extension into the orbit. The clinical conclusions arising from the pecularities of these tumors are discussed. It is particularly striking that in 2 patients with this rare tumor metastases developed in the anterior uvea in all four eyes.
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PMID:[Medullary thyroid carcinoma metastasizing to the choroid, ciliary body and iris: clinical and pathological findings in two cases (author's transl)]. 745 55

Primary ocular melanomas usually arise in the uvea, in the choroid and ciliary body. They metastasize primarily and initially exclusively, to the liver. Metastasis and survival is determined by the maximum tumour dimension, the number of epithelioid cells present within the tumour, vascular patterns within the tumour and nucleolar size and activity. Ganglioside and integrin profiles differ from cutaneous melanomas. Iris melanocytic lesions tend not to metastasize, most being naevi of varying degrees of aggressiveness which may cause glaucoma and corneal decompensation. Conjunctival melanoma is a rare unilateral tumour arising either in primary acquired melanosis or de novo rather than within a naevus. Survival of the patient depends on the location of the tumour and the histological subtype. Tumours not arising in the bulbar or limbal conjunctiva have a much poorer prognosis as do eyelid (cutaneous) melanomas if they involve the lid margin.
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PMID:Pathology of ocular melanomas. 755 88

An 80-year-old white female developed clinical signs of a large choroidal malignant melanoma in her left eye. There were no signs of metastatic disease, but an asymptomatic chronic lymphatic leukemia was discovered. Histopathologic examination of the enucleated left eye showed a mostly necrotic malignant melanoma of the choroid with areas of spindle B cell differentiation, episcleral extension and secondary angle-closure glaucoma with necrosis of the anterior segment of the eye. On the basis of immunocytochemical studies of the lymphocytic infiltrates in the iridal blood vessels, retinal blood vessels and the choroid, the leukemic disease was classified as B cell lymphoma of low malignancy (lymphoplasmacytoid immunocytoma). A reactive T lymphocytic infiltration of the conjunctival stroma was also noted. Patients with malignant melanomas of the uvea require exclusion of a second malignancy.
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PMID:Necrotic malignant melanoma of the choroid and concurrent intraocular manifestation of malignant non-Hodgkin's B cell lymphoma. 818 27

The incidence of metastases to the uvea is compared with that in eight other (extraocular) target sites, in patients with metastatic primary carcinomas of the breast, colorectum, and lungs. The incidence of intraocular metastases from breast cancer is lower than in the eight other target organs surveyed; in the other primary cancers, the incidences were midway between those in the other sites, However, when the incidence of intraocular metastases is viewed in relation to the calculated numbers of cancer cells delivered via the arterial route, the uveal tract is the most highly favoured target site for the development of metastases per unit of delivered cancer cells.
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PMID:Analysis of the incidence of intraocular metastasis. 845 5

The authors draw attention to the possible application, and present their initial experience with examination of serum for the presence of oncomarkers (using radioimmunological methods) in clinical practice of ophthalmooncology in a group of 12 patients treated at the First Ophthalmological Clinic, Faculty Hospital Comenius University, Bratislava in 1997. The mean age of the patients was 59 years. In the first sub-group are nine histologically confirmed malignant melanomas of the uvea (eight times after enucleation of the bulbus and once after block-excision combined with application of the beta-emitter Ru106). In the second sub-group are three patients (one female patient with MMU after application of the beta-emitter Ru106 without enucleation and two patients under investigation on account of a naevus of the choroid). In the whole group of 12 patients the following oncomarkers were examined: TK titre, TPA, B2M and NSE and the patients are monitored so far during a one year period of dispensarization. Elevated levels of beta-2-microglobulin (B2M) were recorded in 50% of the patients and elevated levels of the tissue polypeptide antigen (TPA) in 25% (in the group of histologically confirmed malignant melanomas of the uvea). On examination of the other oncomarkers (TK, NSE and FE resp.) no positive results were recorded. The importance of investigation of the mentioned oncomarkers in ophthalmooncology is in particular the possibility of early detection of metastases in patients after termination of treatment on account of a malignant melanoma of the uvea.
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PMID:[Use of oncologic markers in ophthalmic oncology]. 981 80

Cancer may affect the eye and orbit by a direct effect of metastatic neoplastic infiltration or compression or by circulating antibodies involving paraneoplastic retinal degeneration. Metastatic tumor to the uvea is the most common form of an intraocular malignant process. The choroid is the most common site for uveal metastasis; metastases to the ciliary body, iris, retina, optic disc, and vitreous are rare. Approximately one third of patients have no history of primary cancer at the time of ocular diagnosis. Breast and lung carcinomas for women and lung and gastrointestinal carcinomas for men most commonly metastasize to the eye and orbit. The short-term prognosis for vision is usually good but the systemic prognosis is poor. The visual paraneoplastic syndromes encompass several distinct clinical and pathologic entities including carcinoma-associated retinopathy, melanoma-associated retinopathy, and bilateral diffuse melanocytic uveal proliferation. The first affects photoreceptors, the second is thought to affect bipolar cell function, and the third targets the uveal tract. Identification of circulating antibodies against retinal proteins (recoverin, 23-kD retinal protein; 46-kD and 60-kD retinal proteins) serves to recognize the paraneoplastic nature of the patient's symptoms, which frequently develop before the cancer is diagnosed. No therapy exists to stop the inexorable progressive loss of vision. Metastasis to the eye and orbit and paraneoplastic disorders represent a very bad prognostic sign. Recognition of their visual symptoms and ocular findings should alert the ophthalmologist to the possibility of cancer and systemic evaluation should be pursued.
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PMID:Ocular manifestations of cancer. 1038 28


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