Journal of Pathology and Translational Medicine

Original Article

Fine Needle Aspiration Cytology of Extraskeletal Mesenchymal Chondrosarcoma.: Myoung Ja Chung, So Yeong Oh, Myoung Jae Kang, Dong Geun Lee, Ho Yeul Choi, Sang Ho Kim; Korean J Cytopathol. 1997;8(2):194-198.

Abstract PDF: Extraskeletal mesenchymal chondrosarcoma is a relatively rare tumor and its cytologic findings have rarely been reported. We experienced a case of mesenchymal chondrosarcoma of soft tissue of the right lateral neck diagnosed by fine needle aspiration biopsy in a 59 year-old man. Cytologic findings showed two cell components. One was an undifferentiated, small cell component with moderate amount of cytoplasm and spindle nuclei. The second population was a chondroid component. These cytologic findings were diagnostic to mesenchymal chondrosarcoma.

Case Report

Pathologic Study of Primitive Neuroectodermal Tumor: Report of 5 cases.: Sook Nyo Lee, Jong Eun Joo, Dong Soo Suk, Hyung Dong Kim, Soo Hyu Kim, Jae Hong Sim, Je G Chi; Korean J Pathol. 1989;23(3):331-341.

Abstract PDF: Primitive neuroectodermal tumor (PNET) occuring in the brain (especially in the cereburm) of young individuals is a rare and highly malignant neoplasm. The authors analyzed 5 cases of primitive neuroectodermal tumor, operated from January 1986 to September 1987. They had characteristic clinical, radiologic and pathologic features. Patient's age ranged from 2 years to 14 years old (mean 8.2 years old) and there were 3 boys and 2 girls. They were rapidly growing tumor, with a brief duration of symptoms taking a rapidly progessive course. Computerized tomographic findings were characteristic, revealing the large, irregular, typically iso-to hyper-dense mass lesions with calcification and cystic or necrotic areas, and showing dense heterogeneous contrast enhancement of the mass in the cerebral hemisphere. Grossly all of the 5 cases showed hemorrhage and necrosis with sharp border and 2 cases showed calcification and cystic change grossly. Microscopically, they were predominantly composed of undifferentiated small dark cells with evidence of focal differentiation along glial and or neuronal lines. Four cases showed glial differentiation and three cases showed neuronal differentiation. Mesenchymal components were predominant in 3 cases.

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