Search Results
Results 351 - 400 of 1075
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Shah Basil - - 2005
Astrocytoma, or pituicytoma, of the posterior pituitary is a relatively rare entity consisting of poorly characterized glial tumor cells. We report two cases of posterior pituitary astrocytomas in middle-aged women presenting as focal lesions of the neurohypophysis. A review of the literature reveals only a few reports of this tumor, ...
Kuxhaus Lee - - 2005
Osteotropic radiopharmaceutical uptake has been reported in a wide variety of benign and malignant soft tissue tumors. We present an unusual case of pancreaticoblastoma with mesenteric and omental metastases detected by bone scan in a 69-year-old man who presented with fever, weight loss, and renal insufficiency. Pancreaticoblastoma is a rare ...
Malizia Michele - - 2005
Spermatic cord liposarcoma is a rare tumor; currently only 161 cases are described in literature. Natural history of these tumors is marked by the high local recurrence rate. Radical surgery represents the therapy of choice whilst uncertain is the role of regional and retroperitoneal lymphadenectomy as well as the usefulness ...
Nwoku Alagumba L - - 2005
Myoepithelioma is a rare benign tumor. There are controversial subtypes that lack myogenic differentiation. A 2003 literature search listed only 12 cases of myoepithelioma of the maxillofacial region. This paper describes one case of pediatric myoepithelioma as an addition to the previously documented cases, and a review of the literature.
Rothstein David H - - 2005
Thymic lesions comprise approximately 2-3% of all pediatric mediastinal tumors and include thymic cysts, hyperplasia, carcinoma, and thymomas. Thymomas, which represent less than 1% of all mediastinal tumors, are rare mediastinal tumors in the pediatric population. Fewer than 30 cases in children have been described in the literature. These tumors ...
Galiè M - - 2005
Solitary fibrous tumor is a very rare neoplasm affecting the head and neck. We present a case located in the orbit in which clinical, pathological and surgical features are reviewed.
Mierau Gary W - - 2005
Benign müllerian papilloma of the female reproductive tract is a rare childhood tumor that can easily be mistaken by those unfamiliar with the entity for botryoid rhabdomyosarcoma. Ultrastructural findings have been mentioned only in two individual case reports, and these both were issued many years ago. The aim of this ...
Taweevisit Mana - - 2005
The authors report the very rare case of a congenital immature teratoma arising from the nasopharyx in a full term female neonate. The tumor also extended to the oral cavity, particularly the right tonsillar fossa without intracranial involvement leading to upper airway obstruction and secondary Escherichia coli pneumonia. The immature ...
Martelli-Júnior Hercellio - - 2005
Peripheral ameloblastoma is a rare odontogenic soft tissue tumor, derived from epithelial and/or mesenchymal elements being part of the tooth-forming apparatus. The lesion responses for approximately 1% to 5% of all cases of ameloblastoma affecting alveolar mucosa and gingiva occur, mainly, in the middle age. This article describes a case ...
Ritz R - - 2005
A case of extraventricular neurocytoma with spontaneous intratumoral hemorrhage is reported. A 47-year-old man presented with sudden left-sided hemiparesis. Magnetic resonance imaging revealed a right parietal subcortical mass with intratumoral hemorrhagic transformation and without contact to the ventricular system. After complete microsurgical removal, the tumor was histologically diagnosed as neurocytoma. ...
Lee Ok-Jun - - 2005
Ameloblastic fibrosarcoma (AFS) is a rare malignant tumor of the jaw. The malignant mesenchymal component of AFS has been described as 'fibroblast-like', although little is known about the immunophenotype, except for vimentin expression. Here, we present a case of AFS in a 62-year-old woman. The mesenchymal component displayed the features ...
Allon Irit - - 2005
Liposarcoma (LS), one of the most common malignant tumors, is considered as a rarity in the oral cavity, the tongue being the most frequent site for its occurrence. The purpose of the present study was to review and analyze the clinico-pathologic correlations of 32 cases of LS of the tongue, ...
Jayamohan Yasodah - - 2005
Carcinosarcomas are rare, aggressive tumors that can arise in various sites of the body, especially the genitourinary system. In this system, the most common location for the tumor is the uterus in the female and the urinary bladder in the male. To our knowledge, only 2 cases with a periurethral ...
Kamel Mahmoud Hamdy - - 2005
Chordoma is a locally invasive tumor of low metastatic potential. Only six cases of chordoma that metastasized to the brain are found in the English literature. Most of these lesions were clinically silent and all were associated with extraneural metastases. The authors report a case of symptomatic brain metastasis from ...
Lee Joong Sun - - 2005
Segmental neurofibromatosis is a rare disorder characterized by cafe-au-lait macules and/or neurofibromas limited to a single body segment. The neurofibromas in segmental neurofibromatosis are usually soft, non-tender nodules as in other types of neurofibromatosis. Histopathologically, they are usually non-encapsulated, loosely textured dermal tumors. We report a case of sclerosing segmental ...
Deshmukh C - - 2005
Yolk sac tumors are common in children. By virtue of being chemosensitive, they are amenable to cure by chemotherapy alone and radical surgery is often not required. Yolk sac tumors occurring in the vagina are rare and thus may not be recognized early or may be inadvertently subjected to radical ...
Rando G - - 2005
The authors report on the case of a low-grade fibromyxoid sarcoma (LGFMS) with giant rosettes in a 4-year-old boy. The tumor arose in the paravertebral region and had infiltrated the vertebral canal between L2 and S1. A review of the literature indicates that this is one of the youngest patients ...
Wong Adrian - - 2005
BACKGROUND: Gangliocytic paraganglioma are rare neoplasms that predominantly arise in periampulary region. Though considered benign the disease can spread to regional lymphatics. CASE PRESENTATION: A 49 year old woman presented with melena and was found to have a periampullary mass. Endoscopic evaluation and biopsy demonstrated a periampullary paraganglioma. The tumor ...
Geramizadeh Bita - - 2005
Gastrointestinal stromal tumor (GIST) is very rare in infancy. Most of the reported cases in the literature are in adults; some are in children but there are a few reported cases in the literature. The present case is a 6-day-old female neonate presenting with lethargy, poor feeding, constipation, abdominal distention, ...
Prieto R - - 2005
We report a unique case of hemangioblastoma of the lateral ventricle in a 73 year-old man with cognitive deficits and fluent dysphasia. He harboured an intraventricular tumor, placed at the trigone of the left lateral ventricle. The tumor was successfully excised, by means of a temporal craniotomy. The patient became ...
Joseffer Seth S - - 2005
BACKGROUND: Plexiform neurofibromas are rarely found in the cauda equina. The most recent report of a plexiform neurofibroma of the cauda equina noted only 2 previously described cases. CASE DESCRIPTION: To these we add the current case, as well as 2 additional previously published cases. We report the case of ...
Ng Antony - - 2005
Dermatofibrosarcoma protuberans (DFSP) is a rare tumor of fibrohistiocytic spectrum and uncommonly presents in infancy and childhood. The standard treatment is wide-margin surgical excision, but this is difficult to achieve in large tumors and may result in unacceptable cosmetic, structural, and functional consequences. The authors describe a child with recurring ...
Kazakov Dmitry V - - 2005
We present three cases of subcutaneous tumors with hybrid features of schwannoma-perineurioma (one case) and neurofibroma-perineurioma (two cases), which occurred in two women aged 50 and 52 years and one man aged 52. Locations included the scapular area, skin overlying breast and knee area. The tumors were 1.5, 4 and ...
Onga Takafumi - - 2005
Tendinitis of the long head of the biceps brachii muscle is commonly seen in athletes who do repetitive overhead motions. Common causes of biceps tendinitis include impingement syndrome, subluxation of the biceps tendon, and attrition tendinitis, whereas biceps tendinitis secondary to a bone neoplasm is rare. A case of biceps ...
Tongson-Ignacio Jane Ellaine F - - 2005
We report a case of Insulinoma, a rare neuroendocrine tumor with an incidence of approximately four per 5 million. This case demonstrates the characteristic clinical, biochemical and histological features of an insulinoma, a rare benign neuroendocrine tumor where early recognition is important to ensure proper surgical treatment and prevent serious ...
Yurt Alaattin - - 2005
In this case report, a thoracic extradural metastatic pheochromocytoma without bony invasion, is presented. The disease which has been identified with its symptoms, bio-chemical features, radiological appearance, histological diagnosis has been discussed in comparison with malignant pheochromocytoma metastases in the literature. The origin of this tumor is the adrenal glands. ...
Tsuruta Daisuke - - 2005
We describe 4 cases of pseudocyst of the scalp, which still is only being described in the Japanese literature. The tumor is characterized as follows: localized between the top and the forehead area of the scalp, it first appears as a solitary reddish, painful small nodule or papule; it then ...
Ilvan Sennur - - 2005
Inflammatory myofibroblastic tumor of the lung has often been reported but extrapulmonary cases are rare. Here we describe a case of inflammatory myofibroblastic tumor of the breast in a 60-year-old woman. This is only the eleventh case reported in the English language literature. The patient was free of disease 85 ...
Siepmann K - - 2005
PURPOSE: To report a case of Dirofilaria repens presenting as a subcutaneous tumor of the lower eyelid. METHODS: Interventional case report. RESULTS: A 29-year-old man of Greek origin without systemic symptoms presented with a 3-week history of a small painless mass localized in the medial part of the lower eyelid. ...
Bittmann S - - 2005
BACKGROUND: Peripheral schwannomas and pilomatrixoma are rare clinical features in childhood. The concomitant presence of these tumors in childhood are not described yet. PATIENTS: We describe the first case of a concomitant peripheral benign schwannoma and pilomatrixoma located at the head in a 10-year-old female patient. METHOD: Case Report.
Aker Fügen Vardar - - 2005
Cerebellar liponeurocytoma that has been recently identified as a distinct entity by the World Health Organization is characterized by areas of lipomatous differentiation and apparently by a favorable prognosis. In this paper, we described a case of 49-year-old female showing progressive clinical course inspite of a low labeling/mitotic index. We ...
Iyengar Pratibha - - 2005
We present a unique case of a perivascular epithelioid cell tumor (PEComa) in the orbit of a 9-year-old female patient. The entity of PEComas has been described only recently. Characteristic histologic features and an immunohistochemical profile of negativity for epithelial markers and positivity for melanogenesis-related markers define the tumors. In ...
Chuang Chih-Chieh - - 2004
Pilomatrixoma is a benign skin appendage tumor that commonly occurs as a solitary lesion and is not usually hereditary. There is evidence to suggest that patients with a family history of multiple pilomatrixomas have a high probability of autosomal dominant disorders such as myotonic dystrophy, Gardner syndrome, and Rubinstein-Taybi syndrome. ...
Laudadio P - - 2004
A comprehensive literature search identified only 14 well-documented cases of intracanalicular meningioma. A case is presented of meningioma confined to the internal auditory canal which was excised using a sub-occipital retrosigmoid approach. Preoperative MRI and CT scans were suggestive of intracanalicular vestibular schwannoma. Only the intraoperative findings, which were confirmed ...
Nikas I - - 2004
Desmoplastic infantile gangliogliomas (DIG) are rare intracranial tumors occurring during the 1st year of life. They arise invariably in the supratentorial region and have a great size at presentation, commonly involving more than one lobe. They are composed of a solid peripheral component of variable size, which involves the superficial ...
Jurkiewicz Beata D Zielnik - - 2005
We present a case of a large pyogenic granuloma of the tongue causing swallowing difficulties in an 8-week-old infant. In the literature, we found no case reports of pyogenic granuloma in such a young infant. It is a quickly growing, hypertrophic inflammatory change consisting of exceptionally richly vascularized granular tissue. ...
Schultheiss Patricia C - - 2004
Cases of hemangiosarcoma submitted to the Colorado State University Veterinary Diagnostic Laboratory during a 6-year period were reviewed. Visceral hemangiosarcomas represent less than 2% of canine specimens submitted for histologic examination and nonvisceral hemangiosarcoma less than 1%. Most nonvisceral hemangiosarcomas of dogs occur in skin. Hemangiosarcomas are less common in ...
Sato Daisuke - - 2004
This case report describes a rare case of an adenomatoid odontogenic tumor (AOT) arising in the mandibular third molar region of a 20-year-old female. The tumor was a well-circumscribed intraosseous lesion with an embedded tooth. Histologically, the induction of extensive globular calcification was evident in addition to the characteristic histological ...
Wagner Wolfgang - - 2004
Malignant tumors arising within dysrhaphic malformations are very rare and are mostly teratomas; so far, only one rhabdomyosarcoma has been reported in this context. We report another case of a girl with lipomyelomeningocele who developed a lumbar rhabdomyosarcoma 2 years after birth and primary closure of the neural tube defect. ...
Yoshii Noriko - - 2004
Syringocystadenoma Papilliferum (SCAP) is a benign adnexal tumor which most frequently arises from an organoid nevus on the head and neck. Although they are rarely found on the trunk and limbs, we treated a case of this disorder on the lower leg. A 26-year-old man had an asymptomatic tumor on ...
Naidich M J - - 2004
We describe a case of cerebellar pleomorphic xanthoastrocytoma (PXA) occurring in a patient with neurofibromatosis type 1 (NF1). The histomorphology of this uncommon glial (astrocytic) neoplasm is discussed. The occurrence of this tumor within the posterior fossa is extremely rare. To our knowledge, this is the first reported case of ...
Pakos E E - - 2004
In this presentation we describe a rare case of a 42- year-old female with a large right frontal gliosarcoma (GS) treated with gross total resection of the tumor and postoperative external radiotherapy. The patient did not respond to treatment and she died 3 months after the end of radio- therapy. ...
Sankhla Suresh , Khan ...
An unusual case of intradural paragangliomas in the cauda equina region in a 29-year-old male is presented. The patient presented with signs and symptoms of raised intracranial pressure. The symptoms resolved after tumor resection.
Park Eun-Ah - - 2005
The term glomangiomatosis refers to multiple glomus tumors, a rare condition. Unlike solitary glomus tumors, multiple glomus tumors are not always located in the subungual region, making diagnosis difficult. We report on three cases of glomangiomatosis in the foot, and describe their MR findings and review previous case reports on ...
Caylakli Fatma - - 2004
Ossifying fibromas (OFs) are rare, benign, nonaggressive fibroosseous tumors that are commonly seen in head and neck region. They show aggressive pattern when the midface and paranasal sinuses are involved. We report a 28-year-old woman with OF of the middle turbinate. Computed tomography images of the nasal cavity showed monostotic ...
Garcia Monica - - 2004
Gestational trophoblastic disease occurs in less than 1 per 1200 pregnancies in the United States. The spectrum of this disease ranges from benign hydatidiform mole to trophoblastic malignancy (placental-site trophoblastic tumor and choriocarcinoma). Benign gestational trophoblastic disease generally occurs in women of reproductive age and is extremely rare in postmenopausal ...
Albayrak Ramazan - - 2004
We describe a case of ganglioglioma of the right optic tract in a 52-year-old woman. Review of the general literature discloses only 11 cases of tumors of the visual pathway that meet the histological criteria for such neoplasm. A detailed radiological description of our case and a review of the ...
Pungpapong Surakit - - 2004
CONTEXT: Inflammatory myofibroblastic tumor is a distinctive lesion of unknown etiology. It has generally been considered a rare benign pseudosarcomatous lesion of admixed inflammatory infiltrates with myofibroblastic spindle cells. Although original case descriptions focused on the pulmonary system, it is now recognized that virtually any anatomic location can be involved. ...
Lee Andrew G - - 2004
PURPOSE: To describe the neuro-ophthalmic presentations of a rare intracranial tumor, hemangiopericytoma. METHODS: Retrospective multicenter case series. RESULTS: The neuro-ophthalmic and radiographic features of hemangiopericytoma are reviewed. The clinical presentation may mimic meningioma and the pre-operative distinction between meningioma and hemangiopericytoma is important because the evaluation, management, treatment, and prognosis ...
Morris Luc - - 2004
Esthesioneuroblastoma is a rare malignant tumor of undifferentiated neuroectodermal origin. Because these tumors are derived from olfactory epithelium, most cases arise in the superior nasal cavity at the level of the cribriform niche. The development of an esthesioneuroblastoma outside of the region in which olfactory epithelium exists is exceedingly rare. ...
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