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Peripheral Primitive Neuroectodermal Tumor with Osseous Component of the Small Bowel Mesentery: A Case Study

A case of peripheral primitive neuroectodermal tumor of the small bowel mesentery with osseous component is reported. A 23-year-old man was admitted to our hospital because of acute severe abdominal pain. Abdominal computed tomography revealed a large solid and cystic, oval shaped mass, measuring 11...

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Detalles Bibliográficos
Autores principales: Kim, Joon Mee, Chu, Young Chae, Choi, Chang Hwan, Kim, Lucia, Choi, Suk Jin, Park, In Suh, Han, Jee Young, Kim, Kyung Rae, Choi, Yoon-La, Kim, Taeeun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Korean Society of Pathologists and The Korean Society for Cytopathology 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3589613/
https://www.ncbi.nlm.nih.gov/pubmed/23482293
http://dx.doi.org/10.4132/KoreanJPathol.2013.47.1.77
Descripción
Sumario:A case of peripheral primitive neuroectodermal tumor of the small bowel mesentery with osseous component is reported. A 23-year-old man was admitted to our hospital because of acute severe abdominal pain. Abdominal computed tomography revealed a large solid and cystic, oval shaped mass, measuring 11.0×6.0 cm in the pelvic cavity. Histologically the resected lesion consisted of sheets of undifferentiated small round cells forming Homer-Wright rosettes and perivascular pseudorosettes, and showed areas of osteoid and bone formation. Immunohistochemical studies revealed that tumor cells expressed positivity against CD99 (MIC2), CD57, neuron-specific enolase, and vimentin. Fluorescence in situ hybridization study revealed Ewing sarcoma breakpoint region 1 (EWSR1) gene rearrangement on chromosome 22q12. To the authors' knowledge this is the first documentation of a peripheral neuroectodermal tumor with osteoid and bone formation of the small bowel mesentery.