Results 161 to 170 of about 621,587 (217)
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Primitive neuroectodermal tumors
Critical Reviews in Neurosurgery, 1998The primitive neuroectodermal tumors (PNETs) of Hart and Earle constitute an important fraction of pediatric brain tumors that are clinically characterized by their aggressive behavior. In 1983, Rorke expanded the term "PNET" to include all small cell embryonal neoplasms of neuroectodermal origin, regardless of the location of the tumor. More recently,
, Nishio, , Morioka, , Fukui
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The neuroectodermal tumor of bone
The American Journal of Surgical Pathology, 1984Four small round cell malignant tumors of bone occurring in children are described. There was no catecholamine secretion and the clinical, radiologic, and biopsy diagnosis in each was Ewing's sarcoma. Glycogen was sparse both on imprints and in tissue sections. The tumors, when extensively sampled, had areas of a lobular growth pattern and Homer Wright
R, Jaffe +6 more
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Melanotic neuroectodermal tumor in a newborn
International Journal of Pediatric Otorhinolaryngology, 2005Melanotic 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 200 instances of this tumor are reported in the medical literature.
Tan, O, Ugras, S, Atik, B
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Malignant sympathetic neuroectodermal tumor
The American Journal of Surgery, 1953Abstract A case of malignant sympathetic neuroectodermal derivative tumor is presented and the following features are discussed. 1. 1. Early in the patient's course on the basis of an initial positive interpretation of the bichromate reaction and the histologic picture a diagnosis of benign paraganglioma was made.
S R, BERSACK, H V, RIZZOLI
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Primitive Neuroectodermal Tumor of the Orbit
Ophthalmic Plastic & Reconstructive Surgery, 1994A 10-year-old girl developed a lump in the lateral aspect of the right eyebrow over a 3-week period. Computed tomography and magnetic resonance imaging revealed a soft-tissue mass in the superolateral aspect of the right orbit associated with zygo-maticofrontal bone erosion and hyperostosis.
A D, Singh +4 more
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Melanotic neuroectodermal tumor of infancy
Oral Surgery, Oral Medicine, Oral Pathology, 1990The case of a 2-month-old male infant treated for melanotic neuroectodermal tumor of infancy is presented to demonstrate the importance of early treatment in the containment of the growth of such lesions. Although the lesion itself is rare, the posterior maxillary location and involvement of the optic nerve in this patient's lesion made his case even ...
Peter L. Judd +3 more
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Melanotic Neuroectodermal Tumor of Infancy
Pediatric Dermatology, 2011Abstract: Melanotic neuroectodermal tumor of infancy (MNTI) is an uncommon lesion with remarkably consistent histopathologic features that arises primarily in the pediatric population. We describe a MNTI arising in the anterior maxilla of a 6‐month‐old boy.
Kelly R, Magliocca +3 more
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Melanotic Neuroectodermal Tumor of Infancy
Pediatric Pathology, 1985Melanotic neuroectodermal tumor of infancy is a specific but unusual tumor of infancy for which only sporadic cases have been reported in the literature. This paper presents a case in an infrequent site, the epididymis, and summarizes the literature on the subject.
B F, Carpenter, C, Jimenez, I A, Robb
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