Search Results
Results 201 - 250 of 1075
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Moftakhar Parham - - 2008
Central nervous system medulloepitheliomas are extremely rare and malignant (World Health Organization Grade IV) primitive neuroectodermal tumors (PNETs) that arise in childhood. Unlike other PNETs, medulloepitheliomas have a dismal prognosis, with only 2 reported cases in the literature in which the patient survived beyond 5 years after treatment. The authors ...
Verma Sanjay - - 2008
We report an unusual case of a young woman with chondrosarcoma affecting the greater cornu of the hyoid bone. Only a handful of reports of primary chondrosarcoma involving the hyoid exist in the world literature. The case described presented as a swelling in the submandibular triangle, and as such posed ...
Santos Jean Nunes dos - - 2008
The occurrence of areas exhibiting cribriform morphology in odontogenic tumors is not a very frequent finding. This report describes the case of a 22-year-old man who presented with swelling in the left anterior maxilla. An excisional biopsy was performed under local anesthesia. Histopathologically, the lesion consisted of a cystic wall ...
Vafiadou M - - 2008
Solitary fibrous tumor (SFT) is an uncommon spindle cell neoplasm with unpredictable behavior. It was originally described in the pleura, but is now known to occur in various locations. SFT of the tongue is rare, with only four cases on record. An SFT of the anterolateral part of the left ...
Tashjian Vartan S - - 2009
BACKGROUND: Intracranial hemangiopericytoma represents a rare intracranial tumor that is typically difficult to distinguish from meningioma based on clinical presentation and radiographic findings. These inherently aggressive neoplasms have been observed to occur in numerous intracranial compartments; however, isolated involvement of the CPA is essentially unreported. The authors present a case ...
Ozdemir Nail - - 2008
Primary spinal primitive neuroectodermal tumors (PNETs) of the extradural space are very rare; only 10 cases have been reported in the English language literature. The histopathological diagnosis of primary spinal PNETs has been discussed for many years. These tumors have a rapidly progressive course, and there is no current consensus ...
Avci Emel - - 2008
Desmoplastic infantile gangliogliomas are very rarely encountered, large supratentorial masses, derived from neuroepithelial origin, which have cystic and solid components and contain cells with astrocytic and ganglionic differentiation. These tumors are benign tumors of childhood that become symptomatic when they reach giant sizes. Sixty cases of desmoplastic ganglioglioma have been ...
Stephens Jeffrey W - - 2008
We describe the case of a 30-year-old woman with an ovarian steroid-cell tumor secreting markedly elevated levels of testosterone (28.3 nmol/l), dehydroepiandrosterone sulfate (19.7 micromol/l), androstenedione (>34.7 nmol/l) and 17-hydroxyprogesterone (100.5 nmol/l) into plasma. We could find no report within the literature of androgens at the levels described in our ...
Miller Barbra S - - 2008
OBJECTIVE: To report a rare case of multiple endocrine neoplasia type 1 (MEN 1) in conjunction with concomitant thymoma and thymic carcinoid. METHODS: We describe a never before reported case involving a 63-year-old female patient with MEN 1 who had synchronous thymoma and thymic carcinoid tumors. A review of the ...
Patel Amita - - 2009
Rare cases of intracranial chondromas have been documented in the literature, often after complete surgical excision. We describe a case of giant intracranial tumor at post-mortem examination of a man who had survived 48 years after a partial debulking. Histological examination revealed a chondroid tumor with no significant pleomorphism and ...
El Kaoui Hakim - - 2008
We describe herein the case of a 45-year-old man who developed an osteochondroma from the xyphoid appendix into an abdominal wall scar from a laparotomy performed 4 years previously. To our knowledge, rare cases of osteochondroma of the xyphoid bone have been documented in the literature. As shown by the ...
Min Hye Sook - - 2008
Gliomatosis cerebri (GC) are extensively infiltrative glial tumors classified as astrocytic tumors in the current World Health Organization (WHO) classification scheme. In investigating the tumorigenesis of GC, we reviewed 28 cases of GC immunohistochemically and carried out array-based comparative genomic hybridization (CGH) in ten of those cases. In histological and ...
Kim Sang-Wook - - 2009
BACKGROUND: Extraovarian yolk sac tumors (YSTs) arising in the omentum represent an exceedingly rare malignancy. CASE: A 37-year-old Korean woman was admitted with a history of lower abdominal pain of 3 weeks duration. Pelvic computerized tomography (CT) scanning reported a bilateral ovarian malignancy with peritoneal seeding. Exploration findings revealed a ...
Cole Laurence A - - 2008
OBJECTIVE: To examine utility of measurement of proportions of free beta-subunit of human chorionic gonadotropin (hCG) in diagnosis of placental site trophoblastic tumor (PSTT) and nontrophoblastic neoplasm in patients with persistent low hCG levels and patients with history of gestational trophoblastic diseases. STUDY DESIGN: The USA hCG Reference Service measured ...
Irani Adel D - - 2008
BACKGROUND: In surgical series, a majority of benign cardiac tumors are myxomas. Of these, only about 2.5% are biatrial. Only 10 cases have been reported in the last 10 years. We present here a successful case in a 51-year-old man. A brief review of the literature is presented to place ...
Palmer Julia E - - 2008
OBJECTIVE: To identify common characteristics and provide suggestions for future reporting and management of epithelioid trophoblastic tumors (ETTs). STUDY DESIGN: Definitions and treatment strategies are unclear because of low incidence and paucity of reported data. Literature search revealed 52 cases of ETT; 67% presented with abnormal vaginal bleeding, 36% had ...
Venizelos Ioannis - - 2008
Kaposi's sarcoma (KS) is an unusual vascular tumor characterized by multiple reddish blue nodules, which usually present on the skin of the lower and upper extremities. KS may also involve mucosal sites, lymph nodes and visceral organs. During the last two decades, with the large increase in the incidence of ...
Selim Heba - - 2008
Melanotic neuroectodermal tumor of infancy (MNTI) is an uncommon, fast-growing, pigmented neoplasm of neural crest origin. It primarily affects the maxilla of the infants during the first year of life. Approximately, a few hundred of these tumors have been reported in medical literature. We present a case of a newborn ...
Kerkovský M - - 2008
BACKGROUND: Central neurocytoma (CN) represents a rare, relatively recently described primary central nervous system tumor. It ranks among intraventricular tumors due to its predominant location within the lateral brain ventricles. CN occurs mostly in young adults around the 3rd decade of life; almost a fifth of the cases are children ...
Kochar Kunal - - 2009
Carcinosarcoma of extragenital organs is rare. In this article, a case of primary carcinosarcoma of the spleen, which presented as painful splenomegaly is reported. To the best of our knowledge, this is the second reported case of primary splenic carcinosarcoma in English literature. The pathogenesis of these tumors is incompletely ...
Aslan Erdogan - - 2008
Tumors occupying the retrorectal (presacral) space are uncommon and heterogeneous. It is estimated that an average of two patients with retrorectal tumors will be diagnosed per year in a standard metropolitan area. They are usually asymptomatic and diagnosed during routine physical examination incidentally. Our case was admitted with complaints of ...
Mohan S Murali - - 2008
Epithelioid hemangioendothelioma (EHE) is an uncommon soft-tissue vascular neoplasm. Although a well-defined entity outside the neuraxis, its intracranial occurrence is rare. Literature review revealed 35 reported cases till date. The authors report a case of intracranial EHE in a 15-year-old girl, who presented with a short history and unusual radiology. ...
Bhambri Sanjay - - 2008
Dermatofibrosarcoma protuberans (DFSP) is a rare, slow-growing fibrohistiocytic neoplasm that commonly favors young to middle-aged adults. It is most commonly seen on the trunk and frequently recurs locally after an incomplete excision, but distant metastasis is rare. Mohs micrographic surgery (MMS) is the treatment of choice for DFSP.
Tahar Gargah T - - 2008
Oncocytic tumors of the adrenal gland are uncommon. Most of these oncocytomas are benign and nonfunctioning. We report the case of functioning adrenocortical located in the right adrenal gland in a 6-year-old girl who presented with pseudoprecocious puberty and elevation of the estradiol level. She had an adrenalectomy. The tumor ...
Mandal Shramana - - 2009
Smooth muscle tumors of the ovary are rare, and ovarian adenomyoma are even rarer. It is a well-circumscribed biphasic tumor composed of benign glands and smooth muscle cells, as well as a variety of pseudoneoplastic glandular lesion. After extensive literature search, the case presented in this article appears to be ...
Pitiakoudis M - - 2008
We present a rare case of a carcinoid tumor of the appendix that was diagnosed during pregnancy in a 24-year-old female. The patient was admitted to our department for acute abdominal pain localized on the right half of the abdomen, mimicking acute appendicitis. Open appendectomy was carried out and at ...
Buecker Britta - - 2008
INTRODUCTION: A hemangiopericytoma of the breast is uncommon, and a hemangiopericytoma of the breast is even rarer. Only a few cases of hemangiopericytoma of the breast have been reported in literature. CASE REPORT: Here, we report a case of a 66-year-old woman who presented with a mass in her left ...
Moussallem Charbel D - - 2008
Malignant eccrine porocarcinoma is a rare tumor of sweat glands with a high local recurrence rate and a tendency to metastatic spread. We present a case of a 77-year-old male patient that presented with a recurrent, periungual porocarcinoma mimicking onychomycosis and ingrown toe nail that was successfully treated by surgical ...
Sireci Anthony N - - 2008
A unique case of a mixed epithelial stromal tumor (MEST) that was predominantly composed of adipose tissue is reported here. Radiographically and grossly, the lesion was thought to be an angiomyolipoma, based upon its fatty appearance. Microscopically, the lesion was predominantly composed of mature adipose tissue but also contained clusters ...
Papaspyros S - - 2008
Gastrointestinal stromal tumors (GISTs) are rare neoplasms of the gastrointestinal tract. Their incidence in the esophagus is 1%-3%. Never has a GIST been documented to directly invade the lung. We report a primary esophageal GIST with direct invasion into the lung parenchyma, presenting predominantly with respiratory symptoms. We include a ...
Zhang Xiaohong - - 2008
We describe a case of true histiocytic sarcoma (HS) with features of HS in clinical manifestation, histological presentation, and immunohistochemical panels. The flow cytometry studies were used for the diagnosis. The tumor presents in the small intestine with involvement of regional mesenteric lymph nodes of a 68-year-old female. Histological examination ...
Kawatra Vibha - - 2008
Ovarian fibroma is a rare neoplasm and the one with focal proliferations of sex cord type elements is rarer. Histopathological importance lies in the recognition of this entity due to the diagnostic dilemmas that these tumors can pose. To the best of our knowledge only 9 cases of ovarian fibroma ...
Pachera Silvia - - 2008
Undifferentiated embryonal sarcoma (UES) of the liver was first identified as an independent clinicopathologic type of sarcoma in 1978. It is an uncommon hepatic tumor, of mesenchymal origin, usually observed in children, and cases in adults are rare: to our best knowledge, reports of only 51 cases have been published ...
Kasliwal Manish Kumar - - 2008
Vasospasm, so commonly described after aneurysmal rupture, is very rare after surgery for brain tumors. Its occurrence after transsphenoidal surgery is extremely uncommon with only three cases reported as per the authors' review of the literature. The authors report a case of pituitary macroadenoma in a 34-year-old female who underwent ...
Gusani Niraj J - - 2008
Extrahepatic bile duct tumors, 80 per cent of which are adenocarcinomas, are rare neoplasms accounting for less than two per cent of all cancers. Carcinoid tumor of the extrahepatic bile ducts is a reportable lesion, with only approximately 50 cases described in the literature since 1959. We present a case ...
Duron Emmanuelle - - 2008
Dementia is one of the most important neurological disorders in the elderly. Dementia of tumoral origin is rare and parkinsonism of neoplastic origin is unusual. We herein report a case of gliomatosis cerebri, a very rare brain tumor seldom affecting the elderly, which presented as rapidly progressive dementia and parkinsonism. ...
Mori Ryutaro - - 2008
We report a case of hepatic mesenchymal hamartoma in an adult; this condition is extremely rare, with only 15 cases having been reported in the English-language literature worldwide. The patient was a 36-year-old woman who was seen at her local hospital for upper abdominal distension. A giant multilocular cystic tumor, ...
Xu Songtao - - 2008
Liposarcoma is one of the most common soft tissue sarcomas in adults, but the incidence of esophageal liposarcoma is extremely low. To our knowledge there are only 18 cases of esophageal liposarcoma reported in the English-language literature. Here we report a new case of primary esophageal liposarcoma in a 50-year-old ...
Choi Ic Sun - - 2007
Melanotic neuroectodermal tumor of infancy (MNTI) is an uncommon neoplasm that most often affects the maxilla in the first year of life. MNTI occurring in the long bones is extremely rare, with only 2 cases reported in the medical literature. Here we report a case of MNTI in the right ...
Fang Song-Hua - - 2007
Perivascular epithelioid cell tumor (PEComa) is a rare tumor which arises from mesenchymal tissues. It is predominant in the uterus, but very rare in the liver. To the best of our knowledge, less than 5 cases of PEComa of the liver have been reported. Herein we present two pathologically proven ...
Leboeuf Nicole R - - 2007
The nomenclature for benign tumors with foci of sebaceous differentiation is confusing and varied. In this study, the defining histological features of six such cases are reported, all distinguished pathologically by a superficial proliferation of uniform basaloid cells containing mature sebocytes in varied proportions with attachments to the overlying epidermis. ...
Torres G - - 2007
OBJECTIVE: To describe the case of a primary cerebral fibrosarcoma in a child. CLINICAL CASE: A 6-year-old boy presented with a history of headache, drowsiness, vomiting and seizures. He was referred to our institution and died shortly upon arrival to the ER. The autopsy revealed a large left frontoparietal mass ...
Koral K - - 2008
A case of cerebellopontine angle and prepontine cistern subependymoma in a 15-year-old adolescent boy is presented with a review of the literature. Apparent diffusion coefficient values for subependymoma are reported. Differential considerations for the unusual location of this rare tumor are discussed.
Scott F.M. Duncan; Mayo ...
Epithelioid hemangioendothelioma is a rare vascular tumor with cytologic behavior between angiosarcoma and hemangioma. We present the case of a 58-year-old male with primary epithelioid hemangioendothelioma of the distal radius measuring 6.2 x 5 cm with extension into the pronator quadratus and brachioradialis muscles. We discuss our approach to performing ...
Milligan Brian D - - 2007
The authors report a case of a posterior fossa ganglioglioma centered in the cerebellopontine angle occurring in a child. As with cortically based gangliogliomas, the primary therapy is resection. When the tumor presents in the posterior fossa, often only partial resection can be accomplished without significant neurological deficit. The role ...
Lakhtakia Ritu - - 2007
Calcifying fibrous pseudotumor with psamomma bodies (CFT) is a distinct soft tissue lesion characterized by lymphoplasmacytic collections in a rich collagenous background with abundant calcification. It was recognized first in peripheral axial soft tissues. Recently reports of this lesion in an intrabdominal location have raised speculations about it being a ...
Tincani Alfio Jose - - 2007
Myxomas are benign neoplasms of uncertain origin and etiology. First described by Virchow in 1863, they are derived from primitive mesenchymal structures and feature components of the umbilical cord. More recently, in 1995, Takahashi et al., through extensive research confirmed the fibroblastic and histiocytic origin of the tumor. We present ...
Talmon Geoffrey A - - 2007
Tumors reminiscent of müllerian epithelial tumors of the ovary have been reported outside of the ovary, including in the pancreas and paratesticular region. The latter are most commonly serous tumors of borderline malignant potential and involve the tunicae. We present the first case of a serous cystadenoma of the epididymis ...
Giordano Giovanna - - 2007
Transitional cell carcinoma of the endometrium (TCCE) is a subtype of endometrial carcinoma, characterized by a prominent papillary pattern, resembling the papillary carcinoma of the urothelium. This neoplasm is very rare, with only 13 cases reported in the international literature. In this paper, a new case of TCCE associated with ...
Chuang Wen-Yu - - 2007
Only three cases of clitoral schwannoma have been reported in the English language literature, with none of them being a plexiform schwannoma. Here we report the first plexiform schwannoma of the clitoris. A 41-year-old woman without neurofibromatosis presented with a 2 x 2 cm, slowly growing, painless tumor of the ...
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