Results 41 to 50 of about 759,851 (204)

A Peripheral Primitive Neuro-ectodermal Tumor (pPNET) of Larynx

Bengal Journal of Otolaryngology and Head Neck Surgery, 2020
Introduction Primitive neuroectodermal tumors (PNETs) are malignant tumors comprised of small round cells of neuro-ectodermal origin that affect soft tissue and bone.
Raman Wadhera, Usha Sehrawat, Sharad Hernot, Pawan Kumar Gahlawat, Aman Jakhar   +4 more
doaj   +1 more source

Primitive Neuroectodermal Tumor of the Gallbladder

Archives of Pathology & Laboratory Medicine, 2004
Abstract Ewing sarcoma/primitive neuroectodermal tumor (ES/ PNET) most commonly occurs in the soft tissues of the extremities and the paravertebral areas. To our knowledge, no case of PNET has been reported in the gallbladder to date. We report a case of PNET of the gallbladder occurring in a 53-year-old woman.
Dong Eun, Song, GaWon, Choi, Sun-Young, Jun, Jae Y, Ro   +3 more
openaire   +2 more sources

Primitive neuroectodermal tumor of the cervix: a case report

Journal of Medical Case Reports, 2011
Introduction Peripheral primitive neuroectodermal tumor of the cervix uteri is extremely rare. Between 1987 and 2010, there were only nine cases reported in the English literature, with considerably different management policies.
Boroujeni Parisa, Rezvani Hamidreza, Farzaneh Farah, Rahimi Farzaneh   +3 more
doaj   +1 more source

Pebbled mosaic‐like heterogeneous echogenicity in ovarian immature teratomas and correlation of ultrasound patterns with pathological grades

Acta Obstetricia et Gynecologica Scandinavica, EarlyView.
This study characterizes heterogeneous mottled grayscale ultrasound echoes of ovarian immature teratoma as the “pebbled mosaic sign,” noting solid lesions correlate with advanced pathological grades. Preoperative identification of immature tissue informs operative stratification. Abstract Introduction Ovarian immature teratomas (ITs) are rare malignant
Tianyu Zhang, Jie Yang, Xiaohua Shi, Zhenzhen Liu, Dan Wang, Yang Zhou, Na Su, Jiaxin Yang   +7 more
wiley   +1 more source

Embryonic Tumor with Abundant Neuroepithelium and True Rosettes (ETANTR): Case Report and Literature Review

Brazilian Neurosurgery, 2017
The embryonal tumor with abundant neuropil and true rosettes (ETANTR) is an extremely rare variant of the primitive neuroectodermal tumor (PNET). About 80 cases have been reported since its first description in the literature, in 2000.
Cleciton Braga Tavares, Francisca das Chagas Sheyla Almeida Gomes-Braga, Emerson Brandão Sousa, Camilla Aniele Areia Ferreira, José Nazareno Pearce de Oliveira Brito   +4 more
doaj   +1 more source

Primitive neuroectodermal tumor of the ovary

Saudi Medical Journal, 2008
A 31-year-old woman presented to King Abdulaziz University Hospital complaining of an abdominal pain and a rapid increase in abdominal girth. An ultrasound and MRI, revealed a huge cystic ovarian mass without ascites. Ovarian tumor markers were all within normal range. Exploratory laparotomy showed huge right ovarian mass with omental mass.
Nisrin M, Anfinan, Khalid H, Sait, Jaudah A, Al-Maghrabi   +2 more
openaire   +2 more sources

Uterine primitive neuroectodermal tumor: a case report

, 2009
Primitive neuroectodermal tumors of uterus (PNET) are extremely rare in tumors of the female genital system and therefore there is no sufficient information about their diagnosis, treatment, and follow ...
Dagli, Ferda, Ozercan, Resat, Celik, Husnu, Yavuz, Adem, Gurates, Bilgin, Karaoglu, AZİZ   +5 more
core   +1 more source

AOSNP‐ADAPTR resource level‐based recommendations on practical diagnostic strategies for medulloblastomas and other embryonal tumors

Brain Pathology, EarlyView.
Resource level‐based recommendations on practical diagnostic strategies for medulloblastomas and other CNS embryonal tumors are provided. Abstract WHO CNS5 mandates integrated histo‐molecular classification of medulloblastomas (MBs) and other CNS embryonal tumors. However, advanced molecular diagnostics remain inaccessible in many low‐ and lower‐middle‐
Chitra Sarkar, Maysa Al‐Hussaini, Vani Santosh, Vaishali Suri, Sung‐Hye Park, Yue‐Shan Piao, Tarik Tihan, Ho‐Keung Ng, Michael Buckland, Rakesh Jalali, Yonehiro Kanemura, Pieter Wesseling, Takashi Komori   +12 more
wiley   +1 more source

Primitive neuroectodermal kidney tumor [PDF]

, 2020
To the Editor: Primitive neuroectodermal tumors (PNET) and Ewing sarcoma (ES) belong to a group of neoplasms de®ned by neuroectodermal differentiation and a characteristic cytogenetic translocation, t(11;22) (q24;q12) or gene rearrangements between ...
Yuste, Ana, Segura, Angel, Reynes Muntaner, Gaspar, Pérez, José, Vera Sempere, Francisco José, Petschen, Ignacio   +5 more
core   +1 more source

Pattern‐based interpretation of SOX2 expression in ovarian teratomas: avoiding diagnostic pitfalls in the distinction between immature and mature neuroectodermal elements

Histopathology, EarlyView.
Ovarian immature teratoma grading may be confounded by mature neuroectodermal mimics. SOX2 labelled immature neuroepithelium but also mature ependymal and glial tissue, while SALL4 was negative in mature mimics and variably expressed in immature neuroepithelium.
Agnese Orsatti, Caterina Ravaioli, Marco Grillini, Eugenia Franchini, João Lobo, Andres M. Acosta, Veronica Mollica, Claudio Zamagni, Pierandrea De Iaco, Anna Myriam Perrone, Michelangelo Fiorentino, Giovanni Tallini, W. Glenn McCluggage, Costantino Ricci, Antonio De Leo   +14 more
wiley   +1 more source