Results 131 to 140 of about 10,231 (179)

Primitive neuroectodermal tumor of the leptomeninges

Neuroradiology, 1991
Primitive neuroectodermal tumor (PNET) without an obvious intraparenchymal mass lesion and with diffuse spread in the subarachnoid space is rare. We report such a rare case and discuss the computed tomography (CT) and magnetic resonance (MR) features.
M, Fujii, T, Orita, T, Nishizaki, H, Aoki, K, Tanaka   +4 more
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Primitive neuroectodermal tumor of the vagina

Gynecologic Oncology, 2003
Primitive neuroectodermal tumor is grouped together with Ewing sarcoma of the bone, but its presentation includes a wider age range and more central locations than its osseous counterpart. Presentation in vagina is exceedingly rare.A 34-year-old woman with personal history of kidney transplant presented with a painless vaginal mass.
Patricia, Gaona-Luviano, Eduardo, Unda-Franco, Lizbeth, González-Jara, Penélope, Romero, Heriberto, Medina-Franco   +4 more
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Primitive neuroectodermal tumor of the kidney

Medical Molecular Morphology, 2009
We report a 21-year-old man with a primitive neuroectodermal tumor (PNET) of the kidney that was difficult to distinguish from other small round cell tumors, e.g., small cell carcinoma, malignant lymphoma, and Wilms' tumor. Pathologically, a primitive rosette-like pattern was shown by H&E staining; expression of MIC-2 was indicated by an ...
Hideaki, Ishii, Kenji, Ogaki
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Cervical Primitive Neuroectodermal Tumor

Gynecologic Oncology, 2001
Primitive neuroectodermal tumors (PNETs) are rare and potentially aggressive malignancies.A 24-year-old woman in her eighth week of pregnancy presented with a cervical mass. Tissue biopsy demonstrated poorly differentiated carcinosarcoma with neuroendocrine features. Immunohistochemical studies confirmed the diagnosis of PNET.
A S, Tsao, L M, Roth, A, Sandler, J A, Hurteau   +3 more
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Primitive neuroectodermal tumor of the uterus

Gynecologic Oncology, 2007
: Primitive peripheral neuroectodermal tumors (PNETs) of the uterus are rare. Recent data have demonstrated improved response rates with adjuvant chemotherapy.: A 26-year-old, gravida 2, para 1, Filipina female underwent an emergent cesarean section for fetal indications.
Jennifer Milspaw, Blattner, Preston, Gable, Michael M, Quigley, Michael T, McHale   +3 more
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Primitive Neuroectodermal Tumor of the Heart

The Annals of Thoracic Surgery, 2012
We present a case of primitive neuroectodermal tumor of the left atrium with involvement of the coronary sinus. The initial presentation was of cardiac tamponade resulting from the size of the tumor. There was no evidence of tumor elsewhere, and after complete resection and without adjuvant chemotherapy the patient is well at 2-year follow-up.
Nnamdi, Nwaejike, Doris, Rassl, Hugo, Ford, Stephen R, Large   +3 more
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Extracranial primitive neuroectodermal tumor

Medical and Pediatric Oncology, 1984
AbstractAn 11‐year‐old white girl was admitted to The Children's Hospital of Philadelphia in July 1983 for evaluation of metastatic tumor. She had been well until July 1982, when a mass developed over the right scapula. Treatment with warm compresses and antibiotics resulted in no improvement, and incision and drainage were unproductive.
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Neuroradiology of primitive neuroectodermal tumors

Neuroradiology, 1983
The neuroradiological findings in four cases of primitive neuroectodermal tumor of the cerebrum are described. These highly malignant neoplasms of childhood present as large, enhancing cerebral masses with extensive neovascularity. Cerebrospinal fluid seeding is common and distant extraneural metastases may occur.
D B, Hinshaw, S, Ashwal, J R, Thompson, A N, Hasso   +3 more
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RECTAL PRIMITIVE NEUROECTODERMAL TUMOR

Pediatric Pathology & Molecular Medicine, 2003
We report the clinical, histologic, immunohistochemical, and molecular findings of a Ewing's sarcoma/primitive neuroectodermal tumor (ES/PNET) localized to the rectum in a 17-year-old boy. Notably the 4.5 x 4 x 4-cm sessile mass was spontaneously eliminated through the anus, producing an episode of hemorrhagic shock.
Ricardo, Drut, Mónica, Drut, Carlos, Müller, Adriana, Marrón   +3 more
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Multiple primitive neuroectodermal tumors

Journal of the American Academy of Dermatology, 1994
Primitive neuroectodermal tumors are rare, highly aggressive neoplasms that affect both sexes and occur in all age groups. They are a large group of neoplasms with neuroepithelial differentiation, including cutaneous neuroblastomas. Histopathologically they are characterized by a rather uniform population of small, dark cells, with or without Homer ...
O P, Sangüeza, P, Sangüeza, L R, Valda, C K, Meshul, L, Requena   +4 more
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