Search Results
Results 351 - 400 of 634
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Shibuya T - - 1998
We present two cases of malignant fibrous histiocytoma (MFH) of the mesentery. A whorled internal structure observed on sonogram and large feeding and draining vessels demonstrated on color Doppler sonogram in these cases were worth noticing. When sonography reveals an abdominal tumor with such findings, although very rare, the possibility ...
Durbin M - - 1998
Ewing's sarcoma in the infant and young child is rare, highly malignant, and can be difficult to identify. An erroneous diagnosis of osteomyelitis may be considered first because the presentation may be similar to that of Ewing's sarcoma, and routine laboratory evaluation may not distinguish between these entities. Two such ...
Gorsky M - - 1998
Intra-oral soft tissue sarcoma is a rare disease. We reviewed a tumour registry over a 45 year period, between January 1951 and January 1997, and identified a total of 11,250 head and neck cancers in British Columbia. Of the head and neck cancers, there were 139 cases (1.24%) of sarcoma; ...
Massi D - - 1998
A case of malignant melanoma arising in a young patient suffering from human immunodeficiency virus (HIV) infection is reported, along with a review of the literature. The neoplasm was characterized by aggressive clinical behaviour and, histopathologically, by a peculiar retiform pattern of growth with neoplastic cells interspersed among collagen bundles ...
Berkmen F - - 1998
Tumours involving the scrotum are rare and primary malignant melanoma is among the rarest of these lesions. Between 1949 and 1996 only 7 cases have been reported. We present two cases of scrotal melanoma. The current recommendations and management strategies are discussed on the basis of a review of the ...
Grayson W - - 1998
Primary sarcomas of the major salivary glands are exceptionally uncommon. Synovial sarcoma is a distinctive neoplasm which usually arises in the extremities in the region of joints. Although synovial sarcomas arising in the head and neck region are well described, tumours actually originating in and around the major salivary glands ...
Lamovec J - - 1998
BACKGROUND: Pheochromocytomas and paragangliomas are well-defined entities. Some of their nonsporadic associations and unusual morphological appearances are not universally appreciated. DESIGN: We reevaluated all adrenal pheochromocytomas and extra-adrenal paragangliomas seen at our institution in the period from 1980 through 1995 for their nonsporadic presentation or unusual morphological features and for ...
Malaguarnera M - - 1998
The nasal cavity is a rare location for primary malignant melanoma, borne out by the few cases reported in the literature since 1940. Rarest of all is nasal melanoma in a patient with oculocutaneous albinism. An albino subject, aged 33, was referred to us with this diagnosis. Because of the ...
Cho K H - - 1997
The neutrophilic dermatoses are significantly associated with myeloid malignancies. We now describe the clinical and histological features of 11 patients with these disorders, namely Sweet's syndrome in three cases, pyoderma gangrenosum in two, and neutrophilic eccrine hidradenitis in one; there were also five others which could not be categorised as ...
Taconis W K - - 1997
Primary synovial chondromatosis is a relatively uncommon condition. Synovial chondrosarcoma is considered to be very rare and it is not always clear whether the sarcoma develops by malignant transformation of synovial chondromatosis or whether it arises de novo. Differentiation of the two conditions on clinical and radiographic features is not ...
Kostianovsky M - - 1997
Tenascin-C (TN) is an extracellular matrix glycoprotein expressed during embryogenesis. Its distribution is restricted in normal adult tissues and is upregulated in tumors and inflammatory conditions. Twenty-five specimens were studied, including 7 reactive vascular lesions (6 cases of granulation tissue and 1 case of bacillary angiomatosis), and 18 vascular tumors ...
Van Dorpe J - - 1997
Primary malignant mesenchymoma of bone is a rare neoplasm consisting of two or more unrelated malignant mesenchymal components other than fibrosarcoma or malignant fibrous histiocytoma. The literature reports fewer than 15 cases, most of which were composed of osteosarcoma and liposarcoma. We report an exceedingly rare case of primary malignant ...
Kanter-Lewensohn L - - 1997
In this study, we demonstrate that immunostaining with MIB-1 and anti-bcl-2 is a useful tool to distinguish compound Spitz nevi from malignant melanomas. Forty-six cases of Spitz nevi and 50 cases of vertical growth-phase melanomas (Clark III-V) were compared for the immunoreactivity of MIB-1 and bcl-2 in the intradermal component ...
McKenna D B - - 1997
Porphyria cutanea tarda has been reported in association with a variety of myeloproliferative and lymphoproliferative disorders, suggesting a possible association between these conditions. We describe four patients presenting within a 12 month period with sporadic porphyria cutanea tarda shortly following the diagnosis of hematologic malignancy. A review of the literature ...
Gould S W - - 1997
Isolated limb perfusion (ILP) is a well-tolerated method of regional chemotherapy for melanoma, with response rates ranging from 40-80%, used to treat recurrences or metastases confined to the limb from which the original tumour was excised. We present the case of a 75-year-old woman with a third recurrence of melanoma ...
Supiyaphun P - - 1997
Malignant schwannomas are rare in the head and neck, however benign schwannoma of this area are common. Cases of malignant schwannoma have been reported in the nasal cavity, paranasal sinuses, eye, parapharyngeal space and neck with or without an association of von Recklinghausen disease. We described a case of an ...
Mehrotra R - - 1997
Castleman's disease is an unusual entity which may at times mimic malignancy but is entirely benign in nature. It is topical as it has been noted to occur with AIDS and Kaposi's sarcoma. We report an interesting case with a mediastinal mass which was thought to be neoplastic but turned ...
Cliff S - - 1997
Amelanotic lentigo maligna melanoma is rare, only 10 cases over the face having been reported to date in the English literature. In none of these was the diagnosis suspected clinically, being made in all cases only after histopathological examination. We now report an unusual additional case of this uncommon lesion, ...
Furrer M - - 1997
We present two cases of spontaneous pneumothorax secondary to metastatic synovial cell sarcoma. Radiographic techniques initially did not suggest lung nodules in either patients; thoracoscopy allowed sequential bilateral detection of small pulmonary metastases in one case and confirmed the diagnosis during treatment of recurrent pneumothorax in the second case. This ...
Inagaki T - - 1997
Sarcomas of the spermatic cord are rare, and malignant mesenchymomas are particularly rare. Only 8 cases of paratesticular mesenchymoma have been described previously. We report here the ninth case of malignant mesenchymoma of the spermatic cord, in which there was a local recurrence. We also briefly review the previously reported ...
Berkmen F - - 1997
Seventeen adult urologic sarcomas treated at the Oncology Hospital of Ankara in the last ten-year period are described. There were six cases of paratesticular rhabdomyosarcoma (RMS), four cases of liposarcoma (LS), three cases of leiomyosarcoma (LMS); two cases of Kaposi sarcoma limited to glans penis, and only one primary malignant ...
Richert C A - - 1997
This is a case report of malignant melanoma presenting with both clinical and histopathologic features of a seborrheic keratosis. Not a rare phenomenon, this report emphasizes the importance of biopsy to evaluate apparent seborrheic keratoses. We believe that this phenomenon is best considered a presentation of melanoma. Diminished routine histopathologic ...
Khoo V - - 1997
A rare case of metastatic soft tissue sarcoma (STS) involving the endocardium of the left ventricle of the heart is described. A 57-year-old man with a previously resected synovial sarcoma of the anterior abdominal wall presented 5 years later with an acute ischaemic arm resulting from tumour embolus. The treatment ...
Cossu S - - 1997
The clinical and pathological features of seven cases of lymphangioma-like Kaposi's sarcoma (KS) are reported. As with the other subtypes of KS, the lymphangioma-like variant occurs more often in men aged 59-80 years. Clinically, the lesion appears intermingled with the classical forms of KS, but a "bulla-like" appearance recognized in ...
Blume P A - - 1997
Fibrosarcomas make up a small percentage of soft somatic tissue malignancies. Fibrosarcomas of the foot and ankle constitute an even smaller percentage of all reported cases with respect to anatomic locations. The postoperative local recurrence is great, and the diagnosis is often difficult to make because of the similar microscopic ...
Sheen T S - - 1997
BACKGROUND: Laryngeal sarcoma is a rare disease entity. In review of the literature, chondrosarcoma is the most common sarcoma, followed by fibrosarcoma. Osteosarcoma is very rare; there are only seven cases reported in the literature. Postirradiation sarcoma is a late complication of radiotherapy. Osteosarcoma is the most common type in ...
Nyui S - - 1997
The direct causal relationship between dermatomyositis-polymyositis (PM) and malignancy remains controversial. We describe herein the case of a patient who underwent surgical treatment for colon cancer, which had preceded the onset of PM with tumor relapse. The PM markedly improved following the initiation of steroid therapy, and has remained under ...
Halyard M Y - - 1996
BACKGROUND: Primary malignant fibrous histiocytoma (MFH) of the lung is a rare clinical entity. Only 23 reports of 49 cases have been reported in the literature. Surgery was the primary mode of therapy, with high rates of local and distant recurrence reported. The role of radiation therapy and chemotherapy has ...
Renshaw A A - - 1996
The cytologic appearance of both typical and atypical Ewing's sarcoma (ES)/PNET has been described, but predominantly in small series. The authors reviewed the cytology of 22 cases (5 fine-needle aspirates, 17 intraoperative smears) of confirmed ES/PNET. Fifteen cases had typical cytologic features, including small round cells, scant cytoplasm, round nuclei, ...
Ariad S - - 1996
Insertion of a Hickman central venous catheter before administration of induction chemotherapy is a common practice in treatment of patients with acute myeloblastic leukemia (AML). Granulocytic sarcoma associated with AML may be the initial clinical manifestation of newly diagnosed or relapsed AML, heralding systemic involvement by weeks to months. A ...
Shanks J H - - 1996
A unique case of primary myxoid liposarcoma of the thigh, in which focal pleomorphic areas were present containing rhabdomyoblasts, is described. Focal rhabdomyosarcoma in liposarcoma has only rarely been reported previously and only in dedifferentiated liposarcomas of the retroperitoneum. All but one have been recurrences with rhabdomyoblasts being absent in ...
Killion M J - - 1996
BACKGROUND: Second malignancies are a well recognized complication of radiation therapy. METHODS: We performed a computer search of the literature using the Medline Database for Pericardial Tumors and Post-Irradiation Sarcomas. RESULTS: The case history of a patient who developed a radiation-induced pericardial angiosarcoma is described. We present a detailed review ...
Klaus M V - - 1996
Only 29 cases of generalized melanosis caused by melanoma have been described in the English-language literature since the beginning of this century. This is the first reported case in which the primary site of melanoma was the mucosal surface of the rectum and melanosis was a presenting sign of the ...
Aitken J F - - 1996
A positive family history is used in clinical practice as an indication of increased melanoma risk, yet there are no data on the accuracy of reported family histories of melanoma. The validity of case-reported family history of melanoma was assessed in the course of a family and twin study of ...
Raspagliesi F - - 1996
Leiomyomatosis peritonealis disseminata (LPD) is a rare clinico-pathologic entity typically observed in women of reproductive age. Its malignant degeneration has been reported in literature in only three cases. In this report we describe the clinical course of two more cases with proved malignant transformation of LPD; both cases were treated ...
Levine M R - - 1996
The case of an 80-year-old woman who presented with a 1-year history of a right medial canthal mass and bloody tears and who was found to have a lacrimal sac melanoma is reported. A literature search revealed that only 16 cases of primary lacrimal sac melanoma have been reported. Current ...
Chapman S M - - 1996
Classical Kaposi's sarcoma (KS) is an indolent neoplasm involving mucocutaneous sites predominantly in elderly Mediterranean or Jewish persons. Whilst gastrointestinal involvement is common, it is usually asymptomatic. This case report presents a case of massive gastrointestinal haemorrhage in a patient with stable cutaneous disease and outlines options for the investigation ...
Aydogan L B - - 1996
Metastasis to the oral cavity from melanoma arising in distant sites is very rare. The authors present three cases of melanoma metastatic to the palatine tonsil: two were cutaneous melanomas and one arose from the mucous membrane of the hard palate. Fewer than 30 cases of metastatic melanoma to the ...
Miller J M - - 1996
AIMS: To audit the content of primary cutaneous malignant melanoma histopathology reports with special reference to Breslow thickness and lateral excision margins. METHODS: The Trent Regional Cancer Registry was asked to provide details of primary cutaneous malignant melanomas for the most recent year available (1990). Histopathology departments were then requested ...
Cottoni E - - 1996
We report 4 new families with Kaposi's sarcoma, occurring in 2 members of the same family (2 pairs of brothers, uncle and nephew and father and son) in a series of 160 patients with Kaposi's sarcoma. In addition, HLA typing was also carried out for 6 of the 8 patients. ...
Amino K - - 1995
Leukoplakia is a commonly occurring precancerous lesion. The following case report describes a patient who had multiple leukoplakia in this mouth. He had three sites of leukoplakia, the left hard palate, the gum of the right maxilla and the gum of the left mandible, all of which underwent malignant transformation ...
Taylor K L - - 1995
As the incidence of childhood Castleman's disease (CD) is reported to be rare in Western communities, the recent occurrence of three cases in non-HIV infected prepubertal children stimulated a 10-year (1983-1993) retrospective investigation into the conditions at a children's hospital that serves a predominantly developing community. Retrospective histologic examination revealed ...
Rashkovsky I - - 1995
Acro-angiodermatitis is a very common disorder, with a close clinical, anatomical and morphological resemblance to Kaposi's sarcoma. Several types of this disorder can be found in different settings. However, these conditions are often misdiagnosed and therefore mistreated. A review of the literature and a classification of all types of acro-angiodermatitis ...
Zapater E - - 1995
Malignant fibrous histiocytoma (MFH) is a rare tumor included in the group of soft tissue sarcomas. Approximately 1-3% of these tumors affect the head and neck, with about 100 cases reported to date. A case affecting the retromolar trigone and involving the postero-lateral portion of the left hemi-tongue is reported. ...
Sternbach G - - 1995
Moritz Kaposi first published a description of the entity that bears his name in 1872, calling it "idiopathic multiple pigmented sarcoma of the skin." For many years thereafter, Kaposi's sarcoma was considered to be a relatively rare, slow-growing malignancy, most commonly seen in middle-aged and elderly men. This changed in ...
Allen P J - - 1995
A case of severe lymphedema of the lower extremity caused by obstruction by human immunodeficiency virus-associated Kaposi's sarcoma is presented. A review of the signs and symptoms of obstructive lymphedema and Kaposi's sarcoma is provided. Early recognition of this clinical entity may allow use of simple preventative measures and help ...
Kawakami T - - 1995
A case of erythema gyratum repens occurring in a 62-year-old woman is presented together with a review of the literature. Evaluation and follow-up for the development of malignancy over a 32-month period failed to reveal any evidence of malignancy. Formerly, all cases of erythema gyratum repens were evaluated in terms ...
Lee H S - - 1995
Granulocytic sarcoma is rare extramedullary tumor composed of myeloblasts and other granulocytic precursors. The majority of cases have been reported in association with acute myeloid leukemia (AML) or myeloproliferative disorders. Granulocytic sarcoma may occur in patients with myelodysplastic syndromes. Reports are very rare, especially in the brain. We report an ...
Scott K M - - 1995
Malignant fibrous histiocytoma of the larynx is a very rare neoplasm. This article reports the case of a subglottic malignant fibrous histiocytoma in a 38-year-old male treated by wide excision and radiotherapy. A literature search reveals this to be the 22nd case reported. Clinicopathologic features are discussed. The treatment of ...
Kessler S - - 1995
The seventh case of primary malignant mesenchymoma of bone is reported. It is compared to the other six cases in the literature and clinicopathologic pattern of this entity is developed. Primary malignant mesenchymoma of bone is compared to mesenchymal chondrosarcoma and dedifferentiated chondrosarcoma. Differences as well as similarities are discussed ...
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