| Autor: |
Demetrick DJ; Department of Pathology, University of Calgary Faculty of Medicine, Alberta, Canada., Kneafsey PD, Hwang WS |
| Jazyk: |
angličtina |
| Zdroj: |
Human pathology [Hum Pathol] 1991 Nov; Vol. 22 (11), pp. 1175-9. |
| DOI: |
10.1016/0046-8177(91)90274-s |
| Abstrakt: |
A 65-year-old, otherwise healthy white man presenting with an asymptomatic anterior chest wall mass diagnosed from a routine preoperative chest x-ray is reported. A fine needle aspirate of the mass was initially interpreted as a metastatic adenocarcinoma with prominent "signet-ring" features, but ultrastructural study of the cell block later suggested a chondrosarcoma. The resected surgical specimen confirmed the diagnosis of a grade 2 chondrosarcoma, with most of the tumor cells containing a large, clear, single vacuole shown to be lipid. The positive immunostaining for vimentin and S-100 as well as the ultrastructural appearance confirmed the diagnosis of a chondrosarcoma. Flow cytometric DNA analysis of the tumor on two separate occasions documented a very large aneuploid cell population (50% to 60%) which, when interpreted with the histologic appearance, suggested an aggressive tumor. This case illustrates the first published example of a "signet-ring" chondrosarcoma. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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