(a.) Resembling a monster; abnormal; of a pathological growth, exceedingly complex or highly organized.
Example Sentences:
(1) No mesenchymal elements other than muscle, and no indication of possible teratoid origin of this tumor were observed.
(2) When thyroid tissue of teratoid origin is found, surgical removal is advised on account of the malignant potentialities of these tumors.
(3) In a retrospective analysis, we evaluated the occurrence of toxic side effects and the frequency of intra- and postoperative complications in 128 patients with retroperitoneal teratoid bulky tumor.
(4) Mya collected at Dennysville had pericardial mesotheliomas and teratoid siphon anomalies in addition to gonadal neoplasms.
(5) In addition, teratoid medulloepithelioma, a tumor arising from the ciliary epithelium, can contain a rhabdomyoblastic component, often in combination with other heteroplastic elements.
(6) Teratoids developed at the place of implantation are represented by the derivatives of all germ layers, as well as by some organic structures.
(7) A case of teratoid tumor of the oral cavity in the newborn is presented.
(8) Because of its unique morphological appearance, which has never been reported, and its relatively indolent behavior after chemotherapy and radiotherapy, we believe that this is a distinctive primitive teratoid tumor which may be classified as nasal blastoma.
(9) The various histopathological classifications of teratoid lesions have not been discussed in detail either, because for the most part they have been evolved to serve a specific prognostic purpose on either an empirical basis or on certain histogenetic assumptions.
(10) However, some cases may be teratoid in origin, as has been suggested for the analogous lesion in the testis.
(11) An unique case is presented, never mentioned before the world specialized literature, concerning an intraarticular teratoid formation in the knee.
(12) We present a case of a very rare naso-sinusal malignant, teratoid neoplasia, recently called "terato-carcinosarcoma".
(13) The susceptibility of the opossum eye to an ENU-induced intraocular teratoid medulloepithelioma extended over the period from 1 to between 3 and 4 weeks of age and was correlated with the differentiation of the apparent target cell, the nonpigmented ciliary epithelium of the pars ciliaris retinae.
(14) A unilateral teratoid Wilms' tumor was removed 2.5 weeks after the institution of chemotherapy.
(15) The World Health Organisation histological classification of medulloepithelioma was applied, but some problems were encountered, particularly where the presence of heteroplastic brain tissue was used as a criterion for teratoid tumour and where rosettes were used as a criterion for malignancy.
(16) We report a rare tumor of the nasopharynx in the neonate: the teratoid or hairy polyp.
(17) In 33 patients with malignant teratoid testicular tumours, the retro-peritoneal lymph nodes were surgically removed after lymphograms had been carried out.
(18) Dysgenesis of the ovaries and the testes of testicular feminization syndrome should be regarded as likely soil for the development of teratoid tumors.
(19) Since 1955 to 1975 the authors observed one hundred sixty patients with teratoid formations of the pararectal cellular tissue.
(20) In a four-year-old boy a malignant teratoid medulloepithelioma of the ciliary body was removed by means of an 11.0 X 11.0 mm "block excision".
Teratoma
Definition:
(n.) A tumor, sometimes found in newborn children, which is made up of a heterigenous mixture of tissues, as of bone, cartilage and muscle.
Example Sentences:
(1) This was either giant teratoma of placenta or malformed twin foetus.
(2) The patient, a 28-year-old woman, in her ninth week of pregnancy, was operated on for stage Ia, mixed germ cell tumor (grade 3 immature teratoma + yolk sac tumor) of AFP decreased to the normal level.
(3) Teratomas, which consist only or predominantly of thyroid tissue, are termed struma ovarii.
(4) Astrocytomas and teratomas are the most common oncotypes in infants and particularly in neonates.
(5) Primary intracranila choriocarcinoma, either alone or with malignant teratoma, is a rare tumor.
(6) The authors report eight cases of antenatal diagnosis of sacro-coccygeal teratoma (SCT) in five girls and three boys in whom the diagnosis was made between the 19th and 34th week of amenorrhea (mean = 27 weeks).
(7) Review of the results of treatment of 275 patients with testicular teratomas indicates that the size of para-aortic node metastases as defined by lymphography is closely related to prognosis, and that accurate definition of these metastases is essential in planning treatment.
(8) Angiomas, angiofibromas and teratomas, all of them of rare occurrence, are the benign tumours, with the chorioangioma being the best known of them.
(9) were reexamined in the light of findings with electron microscopy (E.M.) and previously unidentified cellular elements were found to be characteristic of choriocarcinoma and teratoma.
(10) Four cases of squamous carcinoma arising in benign cystic teratoma of the ovary are presented, with a detailed correlation of clinical, operative and pathological findings with prognosis.
(11) The teeth developing in teratoma are not comparable to the normal process which is harmonized when the formation and the distribution of the various parts are concerned.
(12) A 3-year-old child is presented with a benign anterior mediastinal teratoma that was primarily located inferior to the left lung and confused with pleural fluid.
(13) Twenty-seven of the 33 patients with teratoma originating in the gonads remain in complete remission.
(14) Skeletal metastases were present in all five patients who died with seminoma and in two of the eight whose deaths were due to teratoma.
(15) In the years 1979-1982, 83 patients with malignant teratoma of the testis who had retroperitoneal adenopathy at presentation or after a period of surveillance were treated.
(16) In infants and children, yolk sac tumor and teratoma are the usual tumors; in older age patients, it is predominantly spermatocytic seminoma and malignant lymphoma, although the others may occur as well.
(17) We conclude that yolk-sac-derived teratomas are of endodermal origin because of the fact that the paternal X chromosome is inactivated in the yolk sac endoderm, whereas in the yolk sac mesoderm, as in the embryo, the inactivation is at random.
(18) (5) In a recent study of 23 patients undergoing resection of residual nonseminomatous testicular cancer after intensive chemotherapy, 21 had either teratoma in primary tumor or bulky metastatic disease.
(19) Pathologic examination showed a mature sacrococcygeal teratoma weighing 620-g, and measuring 14-cm by 11-cm by 9-cm.
(20) Two years later, hepatic metastasis was discovered and treated with different multiple-agent chemotherapy, resulting in transformation or evolution into a mature teratoma form of disease.