Search Results
Results 301 - 350 of 448
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Reina A J - - 1998
Leiomyosarcomas represent 10-20% of malignant tumors in the small bowel and 1% of those located in the large bowel. These tumors have aspecific symptoms depending on their size, location and histology. Intestinal leiomyosarcomas may be the cause of numerous types of surgical emergency. We report 2 cases of intestinal leiomyosarcoma ...
Shimizu M - - 1997
A case of fatty replacement of the pancreatic body and tail associated with leiomyosarcoma of the pancreatic head is presented. Clinicopathological features as well as differential diagnoses are described with a review of the literature on both leiomyosarcoma and fatty replacement of the pancreas. A possible correlation between the two ...
Shirodkar N P - - 1997
Teratomas are embryonal neoplasms which arise from totipotential cells and contain elements from all three germ layers (ectoderm, mesoderm, and the endoderm). Simultaneous occurrence of mediastinal and gastric teratomas in infants has not been reported, although gastric teratomas extending into the mediastinum have been reported twice in literature. We report ...
Carr M M - - 1997
OBJECTIVE: This article reviews teratomas, neoplasms composed of the three germinal layers of the embryo that form tissues foreign to the part in which they arise. These are most common in the sacrococcygeal region and are rare in the head and neck. In this region, major concerns are airway obstruction ...
Furuhashi M - - 1997
Cystic teratoma in the greater omentum remains one of gynecology's rarest entities. A 28-year-old woman presented with a goose-egg-sized mass in the right lower quadrant. At laparotomy, the mass proved to be a cystic teratoma of the greater omentum. To our knowledge, this report documents the first case where an ...
Kennedy A P AP - - 1997
Primary intestinal leiomyosarcomas in children are rare tumors. Twenty-seven previous cases are documented in the literature with little information available on the treatment, survival, and prognostic factors surrounding these tumors. The authors report the 28th case of pediatric intestinal leiomyosarcoma and its follow-up, that of a newborn presenting with intestinal ...
Bruch S W - - 1997
Although the majority of reported pericardial teratomas have been excised successfully in the postnatal period, the outcome of prenatally diagnosed pericardial teratomas remains less favorable. Two recent cases of prenatally diagnosed pericardial teratomas and a review of previously reported cases suggest a new management algorithm for those pericardial teratomas discovered ...
Winderl L M - - 1997
Sacrococcygeal teratomas can be diagnosed prenatally with a detailed ultrasound examination of the fetal anatomy. The majority of these teratomas are solid or mixed cystic and solid external caudal masses. A conclusion drawn from the literature is that only a small percentage are entirely cystic and few are completely internal ...
Cable D G - - 1997
Sacrococcygeal chordoma is a rare pediatric neoplasm that may be confused with the more common, and indolent, teratoma. The present report describes the diagnosis, treatment and early postoperative convalescence of a case of chordoma in an adolescent child. This case is contrasted to the sacrococcygeal teratoma, a familial pediatric neoplasm, ...
Wargon O - - 1997
Leiomyosarcomas of the skin are frequently misdiagnosed clinically. This tumour however, exhibits typical histological and immunohistochemical features. This collection of seven cases of cutaneous leiomyosarcoma on the trunk and limbs of adults with a mean age of 63 years and a range of 49-78 years demonstrates that the clinical diagnosis ...
Coad J E - - 1997
Perinodular hydropic degeneration of a uterine leiomyoma is a rare form of the more common hydropic change observed in leiomyomas. With minimal discussion in the surgical pathology literature, appropriate evaluation may be challenging because the differential diagnosis includes other uncommon uterine disorders such as intravenous leiomyomatosis, diffuse leiomyomatosis, myxoid leiomyosarcoma, ...
de Lagausie P - - 1997
A case of sacrococcygeal teratoma is presented with characteristics of fetus-in-fetu. This pseudo-fetus presented a rudimentary single cavity heart, which beat at a different rate to that of the affected infant. X-ray examination showed no spinal column. This case confirms that fetus in fetu can be a remarkably complex, well-differentiated, ...
Grove A - - 1996
Three cases of intravascular leiomyomatosis of the uterus are presented. Extrauterine extension occurred in all the patients, and one of them presented with leiomyomatosis of the inferior vena cava. One of the other patients represented an exceptional case of intravascular leiomyomatosis of smooth muscle tumor of uncertain malignant potential. A ...
Griffin J H - - 1996
We report the thirteenth case of primary leiomyosarcoma of the ureter, as well as a summary of previous cases. It is the first case reported to be studied by computer tomography and immunohistochemical procedure. Further evaluation included intravenous pyelogram, cystoscopy with retrograde pyelogram, cell block for cytology, and electron microscopy. ...
Khaffaf N - - 1996
BACKGROUND: Leiomyoma of the ovary is rare, usually small, and rarely induces serious symptoms. CASE: We report a case of a leiomyoma of the ovary that weighed 11.65 kg and led to acute abdomen and bilateral hydronephrosis. To our knowledge, this complication has not been described previously. Transabdominal sonography and ...
Pearl M L - - 1996
A case of primary retroperitoneal mucinous cystadenocarcinoma of low malignant potential in the presence of normal ovaries is reported. The precise etiology of these neoplasms has not been defined; however, they may arise from heterotopic ovarian tissue, monodermal teratomas, embryonal urogenital remnants, intestinal duplication, or coelomic metaplasia. Although minimal data ...
Rosenthal J T - - 1995
This is a case report of a primary vena cava sarcoma extending to the atrium in a young woman, which was resected. Cardiopulmonary bypass was used, and the cava replaced with ringed Gore-Tex. She remains alive and well more than 3 years after the surgery with no evidence of recurrence.
Wang L - - 1995
A case of teratoma from the placenta is described. Sixteen previous reports of this entity are briefly reviewed, and the histological features, differential diagnosis and pathogenesis of the placental teratoma are discussed. Authors consider the placental teratoma a true tumor and not a fetus amorphus. Placental teratomas are extremely rare ...
Washburne J F - - 1995
The majority of case reports concerning intracerebral tumors are almost equally divided between teratomas and gliomas. We report a case of congenital intracranial teratoma with suggested management. An 18-year-old woman at 30 weeks' gestation in active labor because of severe fetal hydrocephalus and polyhydramnios was delivered by cesarean section. Spontaneous ...
Parnes L S - - 1995
Teratomas are true tumours derived from ectoderm, mesoderm, and endoderm, which differentiate into identifiable tissues and organs. Teratomas of the temporal bone are exceedingly rare, but should be considered in the differential diagnosis of a temporal bone mass at birth or during childhood. We present a case of a temporal ...
Fishbein T - - 1995
Two cases of duodenal leiomyosarcoma were encountered, both of which appeared benign by gross and histologic criteria. Both patients suffered recurrences with poor outcomes. We reviewed the literature and found four other such cases and examined the outcomes in the world literature with respect to tumor size and extent of ...
Cheng W F - - 1995
Solitary tumors of the broad ligament are rare. The most frequent solid tumor of the broad ligament is leiomyoma. Leiomyosarcoma of the broad ligament (LBL) is an extremely rare malignant tumor. Nine cases of leiomyosarcoma of the broad ligament had been reported previously. A 59-year-old woman with LBL is reported. ...
Bortolozzi G - - 1995
A case of urethral leiomyoma in a 39 year old woman is reported. It is always a benign neoplasia, frequently hormone-dependent, rarely relapsing after excision. An accurate review of the literature has found over 110 cases up to date, in opposition to a recent publication in the Journal of Urology ...
Muszynski C A - - 1994
Hibernomas are uncommon, benign neoplasms derived from the remnants of fetal brown adipose tissue. A review of the world literature revealed 105 cases, with the interscapular location the most common. Typically, hibernomas are asymptomatic and slow-growing. Adequate treatment usually consists of simple excision. We describe the second documented case of ...
Aydin H - - 1994
Soft tissue sarcomas of the oral cavity are uncommon malignancies; those of smooth-muscle origin are extremely rare. The world literature reveals about 80 leiomyomas and 26 cases of leiomyosarcoma. Only 4 of the cases with leiomyosarcoma occurred in the tongue. This report of leiomyosarcoma of the base and dorsum of ...
Calder C J - - 1994
A patient with multiple peritoneal metastases showing mature (grade 0) glial, epithelial, and endometriotic differentiation occurring 20 years after removal of a grade 1 immature ovarian teratoma is reported. Although previous cases of endometriosis occurring in association with gliomatosis peritonei and a case of epithelial differentiation in metastases from an ...
Pow-Sang M R - - 1994
The third case of leiomyosarcoma of the foreskin is reported. A review of the literature indicates that this lesion, which is similar to cutaneous leiomyosarcoma that is seen elsewhere in the body, has a low grade of malignancy. This finding is in contrast to leiomyosarcoma of the penis, which arises ...
Morinaga S - - 1994
A surgical case of teratoma with malignant transformation (TMT) of the mediastinum in a 66-year-old man is reported. The unilocular, cystic, mediastinal mass, which had been seen in a chest radiograph 7 years earlier, was extirpated. The mass was histologically revealed to be a mature cystic teratoma containing skin and ...
Akang E E - - 1994
Teratomas accounted for 3.4 cases per 1,000 surgical biopsies received in the Pathology Department of UCH Ibadan, between 1960 and 1985. The commonest site of teratomas was in the ovaries which accounted for 83.2% of the cases, followed by the sacrococcygeal region which accounted for a further 6.3%. Other sites ...
Hellquist H B - - 1994
We describe the pathological features of a case of laryngeal epithelioid leiomyoma (leiomyoblastoma) which, to our knowledge, is the second case to be reported in the world literature. A review of the literature confirmed that leiomyoma as such is a very rare neoplasm in the larynx, and only 33 cases ...
Winter T C TC - - 1993
Teratomas of the liver in adults are rare. We believe this to be only the fifth such case reported, the first with CT correlation and with plain film documentation of the development and slow progression of the lesion from age 44 to 61. A review of the literature regarding hepatic ...
Ozisik Y Y - - 1993
The cytogenetic patterns of uterine leiomyomas have been extensively investigated, and cases characterized by specific clonal changes have been documented in detail. In these tumors one of the cytogenetic changes frequently observed has been a del(7), particularly del(7)(q22), usually as a sole anomaly. This is confirmed by our experience and ...
Furuta G T - - 1993
Intestinal leiomyosarcoma is a rare tumor in infants and children; only 46 cases have been reported in the English literature. Presenting signs and symptoms include abdominal pain and gastrointestinal obstruction and bleeding. We describe a neonate with the unique presentation of ileocecal intussusception accompanying an ileal leiomyosarcoma. In contrast to ...
Caffarena P E - - 1993
The authors report a case of leiomyosarcoma of the cecum and review all the Italian reports of mesenchymal neoplasms registered in the RMS-Italy register. They emphasize the extreme rarity of intestinal leiomyosarcoma, especially with colon involvement: their case appears to be the only one registered in Italy in the last ...
Seraj I M - - 1993
A case of malignant teratoma arising within a dysgenetic gonad in a 21-year-old phenotypic female with a 46 XY karyotype is presented. Admixtures of dysgerminoma, yolk sac tumor in close juxtaposition to embryoid bodies and elements of choriocarcinoma were also present. The contralateral gonad was an unidentifiable fibrovascular streak. Neither ...
Schadendorf D - - 1993
We report a rare case of a cutaneous leiomyosarcoma on the extensor surface of the proximal part of the left arm of an 84-year-old man. The tumour exhibited a number of histological and immunohistochemical features which are characteristic of a leiomyosarcoma. Leiomyosarcomas are frequently misdiagnosed on clinical grounds. Therefore, clinical ...
Monk B J - - 1993
A case of primary leiomyosarcoma of the ovary in a perimenarchal female is presented. Previous to this report, ovarian leiomyosarcoma was thought to arise predominantly in postmenopausal women and, indeed, this is the first reported case in a pubertal adolescent. The sarcoma was associated with bilateral cellular ovarian leiomyomas, suggesting ...
Kim W S - - 1993
We report a 5-year-old boy with endodermal sinus tumour associated with benign cystic teratoma of the common bile duct (CBD). To our knowledge, there has been one case of teratoma of the CBD in the English literature with no morphological or radiological description. Our case presented a lobulated polypoid mass ...
Conran R M - - 1993
Oropharyngeal teratomas (OPT) represent an uncommon congenital tumor with significant morbidity and mortality. Optimal management requires prenatal diagnosis. The clinicopathologic features of four OPT (one stillbirth, two livebirths, and one therapeutic abortion) are reviewed and compared with cases previously reported in the literature. Diagnosis, management, clinical outcome, and the natural ...
Mingoli A - - 1993
A case of multifocal leiomyosarcoma of the stomach, duodenum and jejunum presenting as an intestinal occlusion for small bowel intussusception is reported. Complete surgical excision of the tumour was not possible due to the wide dissemination. The patient died two months later for haemorrhage from an ulcerated gastric localization. Surgical ...
Kwok C K - - 1993
We report a case of mature testicular teratoma with invasion and thrombosis of the inferior vena cava that presented as recurrent pulmonary embolism. Treatment included radical orchiectomy, chemotherapeutic cytoreduction and, finally, resection of a massive retroperitoneal tumor with en bloc resection of the inferior vena cava using cardiopulmonary bypass and ...
Grove A - - 1992
Superficial perineal leiomyosarcomas are rare, with only three previously reported examples. We encountered a superficial (deep subcutaneous) perineal leiomyosarcoma in a 17-year-old female. At follow-up two years after a wide excision, there were no signs of recurrence. The tumour was well differentiated and showed immunoreactivity for alpha-smooth muscle actin and ...
Vrabec J T - - 1992
Dermoids and teratomas are frequently described in the head and neck, but are rarely found in the middle ear or temporal bone. We have recently managed a case of an extensive middle ear dermoid occurring in a 14-month-old female. The purpose of this article is to report the presentation and ...
Kandalaft P L - - 1992
We report a case of ovarian leiomyomata, bilateral and massive, in a 21-yr-old woman. Primary leiomyoma of the ovary is a very rare tumor and is usually small, unilateral, and concomitant with uterine leiomyomata. To our knowledge, this is the first report in the English literature of bilateral ovarian leiomyomata. ...
Van Winter J T - - 1992
BACKGROUND: Primary ovarian leiomyoma is rare. Most cases are asymptomatic; this benign neoplasm is usually found incidentally on routine pelvic examination, at surgery, or at autopsy. CASE: We present what we believe to be the first case of ovarian leiomyoma associated with ascites and polymyositis, both of which resolved after ...
Carr K A - - 1992
We present a case of a 25-year-old patient at term pregnancy who presented with a bilateral ovarian neoplasm that was histologically and immunohistochemically indistinguishable from ependymoma of the central nervous system. Progesterone receptors were detected in primary and recurrent neoplasms by immunohistochemistry. This is the first case of this rare ...
Mori H - - 1992
Leiomyomas or benign tumors of smooth muscle origin are extremely rare in the larynx. A review of the literature revealed only 15 confirmed cases of leiomyoma, eight leiomyosarcomas, and no cases of leiomyoblastoma. An unusual case of "bizarre" laryngeal leiomyoma arising from the vocal cord, which is believed to be ...
Konovalov A N - - 1992
A highly ossified teratoma was diagnosed and surgically treated in a 2-year old girl. More than 150 teeth were macroscopically identified during the operation. Pathological study established the diagnosis of mature teratoma with teeth formation. Only six analogous cases have been reported previously and only two patients survived the operation.
Parenti D J - - 1992
This is a case report of an asymptomatic, 65-year-old white female who was evaluated for multiple pulmonary nodules. This patient's presentation, clinical course and pathologic specimens are consistent with benign metastasizing leiomyoma. A review of this rare disorder is included in this report with emphasis on past cases, clinical overview ...
Tarasidis G - - 1991
In this collective review, we have compiled all the reported cases of smooth muscle tumors of the rectum/anus in the world literature from 1959 to 1989. Our goal was to increase the data pool of smooth muscle tumors by adding these new data to that previously collected from 1881 to ...
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