Search Results
Results 451 - 500 of 647
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Lawoyin J O - - 1992
A case of Kaposis sarcoma presenting exclusively in the oral cavity is reported. Exclusive oral presentation of Kaposis sarcoma is considered extremely rare. At the U.C.H. Ibadan, a total of one hundred and two cases of Kaposis sarcoma were seen in the last 24 years. None of these presented exclusively ...
Goetz S P - - 1992
A primary extraskeletal myxoid chondrosarcoma of the pleura that clinically mimicked a malignant mesothelioma in a 66-year-old man with a history of asbestos exposure is described. Although exceedingly rare in this location, the characteristic histologic features, immunohistochemical reactivities, and ultrastructural features support the diagnosis of extraskeletal myxoid chondrosarcoma. Many ferruginous ...
Kang S - - 1992
A case of primary cutaneous melanoma of the external auditory canal and a review of the literature are reported. This is the first reported case with microstaging of the tumor. The tumor presented as a polypoid obstructive lesion of the external ear canal. Although occurrence of melanoma in this location ...
Bottger D - - 1992
Melanomas may first present as nodal metastasis. Most of these cases have a discernible primary source. A proportion of these, however, have no apparent primary. A very few patients in this latter group actually have an identifiable primary source that regressed and disappeared. There is a set of stringent clinical ...
Barrow H N - - 1992
Necrotizing "malignant" external otitis is a life-threatening skull base infection that originates in the external auditory canal and is characterized by otalgia and purulent aural discharge with external auditory canal cellulitis and granulation. Necrotizing external otitis, seen almost exclusively in elderly diabetics, is almost always caused by Pseudomonas aeruginosa. To ...
Shaffer D - - 1992
Nevus of Ota is uncommon in the non-Oriental population. We report a case of malignant melanoma with metastasis to the genitourinary tract in a Hispanic male with nevus of Ota. Thirty-six prior cases of nevus of Ota with malignant melanoma reported in the English language are reviewed. Sixty-eight percent were ...
Bukachevsky R P - - 1992
Primary synovial sarcoma is an unusual tumor of the head and neck. Fewer than 75 cases have been reported in the literature. We have treated 7 additional cases; 3 in the hypopharynx, 2 in the parapharyngeal space, 1 in the oral pharynx and 1 in the posterior triangle of the ...
Blessing K - - 1991
From the files of the Scottish Melanoma Group, we have identified 100 cases of subungual malignant melanoma (melanoma arising in the nailbed), and this represents 2.8% of the total melanomas registered during the period 1979-1989. Almost equal numbers arose on the foot as on the hand, with the thumb and ...
de Jong R S - - 1991
A case of a 69-year-old man with an extra-adrenal malignant phaeochromocytoma is described. Sputum cytology revealed metastatic cells, which have not been reported previously in malignant phaeochromocytoma. This case is also remarkable for the short duration of disease, rapid progression and extensive spread of metastases, the radiological aspect of metastatic ...
Wang C L - - 1991
Metastatic tumors to the jaw are a rare occurrence. The incidence of metastatic Ewing's sarcoma to the jaw has been reported to be less than 2% of all cases of Ewing's sarcoma. Early detection of such lesions is difficult because the signs and symptoms do not appear until the lesion ...
Paulus W - - 1991
Nineteen primary intracranial sarcomas out of a total of about 25,000 brain tumour biopsies are reported. Subtypes included malignant fibrous histiocytoma (6 cases), leiomyosarcoma (3), rhabdomyosarcoma (2), angiosarcoma (2), and one case each of fibrosarcoma, low-grade fibromyxoid sarcoma, malignant ectomesenchymoma, mesenchymal chondrosarcoma, differentiated chondrosarcoma and Ewing's sarcoma. Histological and immunohistochemical ...
Gaylis B - - 1991
Recurrent respiratory papillomatosis is the most common benign tumor of the larynx in children. The disease often runs a protracted course necessitating multiple endolaryngeal procedures. Rarely, these papillomata become invasive and/or undergo malignant degeneration. A case report of malignant degeneration and widespread invasion in long-standing laryngeal papillomatosis and a review ...
Boi S - - 1991
The development of delayed metastases, although rare, is well documented in patients with invasive cutaneous melanoma. Only 24 cases, including ours, are clearly documented in the literature. We describe a 56-year-old woman who had an acral lentiginous melanoma of the right hand (thickness 1.2 mm). Thirteen years after excision and ...
Kenan S - - 1991
A case of primary liposarcoma of bone involving the glenoid region of the right scapula in a 57-year-old man is presented. The diagnosis was confirmed by open biopsy. The differential diagnoses have been considered. To the best of our knowledge, this may be the first reported case of primary liposarcoma ...
Esteban J M - - 1990
One of the great challenges in the cytodiagnosis of effusions is the distinction between reactive mesothelium/histiocytes and cancer cells. This is notably true in patients having undergone radiation and/or chemotherapy. To establish whether monoclonal antibodies (MoAbs) could be used as reliable diagnostic adjuvants, the authors retrospectively and blindly studied 60 ...
Kawashima A - - 1990
Malignant pleural mesothelioma is a rare and usually fatal disease. Its association with asbestosis is well recognized. The authors report a case of malignant pleural mesothelioma that developed 30 years after the patient underwent radiotherapy for breast cancer. This appears to be the first such case reported in the radiology ...
Asensio J A - - 1990
Mesothelioma of the peritoneum is a rare malignant neoplasm easily mistaken by both surgeon and pathologist for one of the more common neoplasms of the abdomen. Review of our records from metropolitan-area hospitals for the past 15 years identified seven patients with primary peritoneal mesotheliomas. Their diagnosis, management, and survival ...
Weissmann D - - 1990
We report a case of vulvar epithelioid sarcoma with metastases to the scalp, an inguinal lymph node, lungs, liver, and kidneys. Epithelioid sarcoma typically involves the extremities of young men and may be confused histologically with various benign and malignant processes. Only five cases of primary vulvar epithelioid sarcoma have ...
Zukerberg L R - - 1990
The clinical and pathologic features of two primary pure testicular sarcomas are reported. One tumor was an osteosarcoma and was found in a 30-year-old man; the other was a fibrosarcoma from an 86-year-old man. The patients were treated with orchiectomy and high ligation of the spermatic cord and received no ...
McKee P H - - 1990
Malignant change in a benign eccrine spiradenoma is rare. Only 13 such cases have been previously reported. Two further cases are described herein, both of which were carcinosarcomas and arose in middle-aged women. In each case continuity was demonstrated between the benign and malignant epithelial components and the sarcomatous element. ...
Altaras M M - - 1990
Two cases of endometrial sarcoma that developed many years after exposure to unopposed exogenous and endogenous estrogens, with no previous pelvic irradiation, are described. The literature is reviewed and the possible effect of prolonged unopposed estrogen stimulation is suggested as an etiologic factor in such extremely rare conditions. These cases ...
Jameson C F - - 1990
A case of primary epithelioid sarcoma of the hard palate is described with no evidence of metastases. Review of the literature revealed no other reported cases of epithelioid sarcoma at this site. The patient, a 20-year-old male negro, returned with 2 local recurrences after initial excision but with no evidence ...
Scheele P M PM - - 1990
Primary malignant mesenchymoma of bone is a rare neoplasm consisting of two or more unrelated tissue elements other than a fibrosarcomatous component. To our knowledge, only six cases have been reported in the literature. A case of malignant mesenchymoma composed of rhabdomyosarcoma, chondrosarcoma, and osteosarcoma arising within the right acetabulum, ...
Nir D - - 1990
Ten cases of malignant external otitis in children have been reported hitherto. These are reviewe, and an eleventh case, a three-month-old infant associated with genetic granulocytopenia, is presented. On the grounds of the reported paediatric cases, the erudition in childhood is compared with the more common form in the adult, ...
Podczaski E - - 1990
Pure rhabdomyosarcomas of the female genital tract most commonly occur in infancy or childhood as sarcoma botryoides (embryonal rhabdomyosarcoma) and involve the vagina and cervix. Such tumors rarely occur in adults. A pure rhabdomyosarcoma of the uterus that arose in a postmenopausal patient is described. The pertinent literature is discussed.
Ng H K - - 1990
A rare case of gliosarcoma occurring in the posterior fossa of a 62-year-old man is reported. Histologically, the tumor closely resembled that of a typical case of malignant fibrous histiocytoma (MFH). Such features have not been reported previously in gliosarcoma. The importance of using an immunoperoxidase preparation against the glial ...
Odze R - - 1990
A case of malignant paraganglioma arising from the posterior mediastinum and presenting with a chest wall metastasis is reported with immunocytochemical and ultrastructural documentation. The pathobiologic features of this rare disease are reassessed with a review of the literature. Cytoarchitectural features do not provide reliable information regarding malignant potential. However, ...
Chinoy R F - - 1990
Fourteen histologically proved specimens of clear cell sarcomas (CCS) of tendon sheaths were studied for the presence of S-100 protein. Eleven cases were strongly positive, and 2 cases were weakly positive. There was only one case which was absolutely negative for this protein. This technique was useful to diagnose tumours ...
Padilla S - - 1990
Kaposi's sarcoma in transfusion-associated acquired immunodeficiency syndrome is rare; to our knowledge, only four previous cases have been reported. We report a unique case of transfusion-associated acquired immunodeficiency syndrome in a 74-year-old woman. At autopsy, both lungs were extensively affected by Kaposi's sarcoma, Pneumocystis carinii, and cytomegalovirus infection. These three ...
Leuschner I - - 1990
Nine cases of undifferentiated sarcoma of the liver in childhood were investigated by conventional light microscopy, immunohistochemistry, and DNA flow cytometry. Different histologic patterns were discernible. In some cases, areas resembling poorly differentiated rhabdomyosarcoma were present. This histologic diversity was supported by the immunohistologic detection of desmin and cytokeratins in ...
Bürrig K F - - 1990
Well-differentiated papillary mesothelioma (WDPM) is considered to be a distinct subtype of peritoneal mesothelioma. Although the WDPM is usually qualified as benign, the natural history of this lesion has not been clearly established. This report relates to two WDPMs which were found incidentally. In a 51-year-old man the WDPM developed ...
Reynolds P - - 1990
A preliminary comparison of the reported incidence of Kaposi's sarcoma among males under 60 years of age residing in San Francisco was conducted using merged San Francisco AIDS Registry and California Tumor Registry (CTR) data. For the years 1980-1986, the number of cases reported by both registries was similar. However, ...
Sichel M P - - 1990
The quality of life is becoming more and more important for women after demolitive surgery for genital malignancies. A sample of 58 cases of genital malignancies are compared with 50 cases of benign neoplasms (fibroids) and their effects on sexuality, as a parameter of the quality of life, are studied ...
Lombardi A - - 1990
Considering the different localizations of malignant fibrous histiocytomas (MFH), that of the recto-vaginal septum is extremely rare. The present report describes a case, probably the first in literature, characterized by a storiform-pleomorphic histological type, treated with posterior exenteration and adjuvant chemotherapy. The Authors stress the still controversial histogenetic problem, as ...
Berth-Jones J - - 1990
We report 3 cases of malignant fibrous histiocytoma occurring as primary neoplasms of the skin. The first case developed in a leg ulcer of traumatic origin. The second developed on the lower lip at the site of a squamous cell carcinoma which had been treated by radiotherapy. The third arose ...
Schwarzer A C - - 1989
The important association of neoplasia and rheumatic disease was reviewed. The literature in the last year included case reports of neoplasia, particularly hematologic, causing arthritis by direct joint involvement. Immunocytologic techniques may help in the diagnosis. The evidence linking dermatomyositis and polymyositis to malignancy was reviewed, although analysis of the ...
García A - - 1989
Seventy-nine cases of Kaposi's sarcoma (KS), which correspond to one of every 1,000 malignant tumors, were reviewed at the National Institute of Cancer (NIC), Bogotá, Colombia, from 1935 to 1985. Seventy-four percent of the patients were older than 65 years of age. The male to female ratio was 8:1. In ...
Gruber S B - - 1989
Two hundred forty-eight cases of melanoma accessioned from 1984 through 1985 were independently reviewed by a panel of dermatopathologists for the presence of nevomelanocytic proliferations in histologic contiguity with melanoma. One hundred ninety-seven cases remained in the sample for analysis after cases with insufficient histologic material and those diagnosed without ...
Colby T V - - 1989
Five neoplasms were initially believed to represent primary osteosarcomas of the lung. Of the five cases, two were reinterpreted as carcino-sarcomas based on the identification of epithelial elements on further histologic sectioning and immunohistologic study in one and on immunohistologic study alone in the second. The differential diagnosis of carcinosarcoma ...
Anavi Y - - 1989
Malignant fibrous histiocytoma of the mandible has appeared frequently enough in the world literature in recent years to assume a legitimate place in the differential diagnosis of neoplastic masses of the lower jaw. This article reports a pertinent case and tabulates and correlates the findings of all cases reported thus ...
Outwater E - - 1989
Clinically significant adrenal hemorrhage due to adrenal metastases has rarely been reported. We describe three cases of this unusual entity, two from lung carcinoma and one from sarcoma. Adrenal hemorrhage was bilateral in two patients, and was the presenting manifestation of malignancy in two. A computed tomography diagnosis of hemorrhage ...
Tyagi G - - 1989
Malignant mesothelioma of the tunica vaginalis is rare, but sometimes curable. It is similar to malignant mesothelioma of the peritoneum and of the pleura, and is likewise associated with asbestos exposure. We report a case, with correlative computed tomography, ultrasound, and gross pathology images that demonstrate tiny tumor implants studding ...
Kenan S - - 1989
Juxtacortical liposarcoma is an uncommon entity. The purpose of this paper is to report the case of a 63-year-old man with juxtacortical liposarcoma. Liposarcomas arising as surface lesions of bone are extremely rare. Histologically, juxtacortical liposarcoma is composed of myxoid and round-cell areas. Because of the extent of compartmental involvement ...
Chellam V G - - 1989
The clinical and histopathological features of four cases of clear cell sarcoma of kidney (CCSK) or Bone metastasising renal tumour of childhood (BMRTC) are presented. These cases were identified among 107 primary renal tumours in childhood over a period of 15 years (1973-1987) in the Trivandrum Medical College. Of the ...
Wu M H - - 1989
Between January 1981 and December 1986, thoracoscopies were carried out on 152 patients in order to evaluate the diagnostic accuracy of the technique in cases of pleural effusion. All patients had previously undergone a thoracentesis together with an unguided pleural biopsy but had remained undiagnosed. Of them, 74 cases were ...
Montgomery D M - - 1989
Resolving osteochondromas were previously thought to be uncommon. Two cases are presented, including the first report of a resolving solitary osteochondroma of the proximal tibia. These cases, along with previous reports, suggest resolution may occur, especially in boys under age 12 years. Surgical excision should be delayed in this group ...
Hussain S S - - 1989
Malignant melanoma of the larynx is a rare tumour. Only 31 cases of primary laryngeal melanoma have been reported in the literature. Cady et al., (1968) found only four cases in a group of 2,500 cases of laryngeal cancer seen over a 25-year period. A case of primary malignant melanoma ...
Langford A - - 1989
A case with oral Kaposi's sarcoma (KS) is reported that regressed during therapy with Zidovudine (AZT) which was started 5 months after the first dermal and oral tumours were noted. After 6 months of treatment the absolute number of T-helper cells had increased from 54/microliters to 232/microliters and the ratio ...
Mordel N - - 1989
Malignant melanoma of the uterine cervix is an extremely rare manifestation, and neither retrospective nor prospective studies on this disease entity have been published. A patient with this disease entity is described. In addition, the data contained in 25 published case reports were collated in an attempt to clarify the ...
Flood H D - - 1989
Malignant fibrous histiocytoma is a pleomorphic sarcoma that classically arises in the extremities and metastasizes to the lungs and regional lymph nodes. A review of the literature revealed only four previous cases of primary gastrointestinal malignant fibrous histiocytoma, all of which were treated by resection. This report describes a unique ...
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