Primitive neuroectodermal tumor of the kidney. A report of two cases diagnosed by fine needle aspiration cytology
| Autor: | Chennagiri S, Premalata, Muniyappa, Gayathri Devi, Siddarth, Biswas, Geethashree, Mukherjee, Sadashivan, Balu, Tambarahalli S, Sundareshan, Ponnuswamy S, Prabhakaran |
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| Rok vydání: | 2003 |
| Předmět: |
Adult
Male Chromosomes Human Pair 11 Chromosomes Human Pair 22 Biopsy Needle Antineoplastic Agents 12E7 Antigen Immunohistochemistry Nephrectomy Disease-Free Survival Kidney Neoplasms Translocation Genetic Antigens CD Cytogenetic Analysis Humans Female Neuroectodermal Tumors Primitive Peripheral Cell Adhesion Molecules |
| Zdroj: | Acta cytologica. 47(3) |
| ISSN: | 0001-5547 |
| Popis: | Primitive neurocetodermal tumors (PNETs) constitute a family of neoplasms of presumed neuroectrodermal origin most often presenting as bone or soft tissue masses. There are very few reported cases of PNET of the kidney and none diagnosed by fine needle aspiration cytology (FNAC), to the best of our knowledge, in the world literature. We present two cases of renal PNET diagnosed on cytology.Two patients with renal masses were diagnosed as having PNET on FNAC. Cytologically the tumors showed a dispersed population of malignant small round cells with focal rosette formation and perivascular arrangement of tumor cells. Immunohistochemistry on the cell blocks in both cases showed strong membrane positivity for CD99 (MIC2). Cytogenetic studies in both cases showed the characteristic t(11;22)(q24;q12) translocation, with additional chromosomal abnormalities in case 2.PNET of the kidney is a distinct entity and can be diagnosed on fine needle aspiration smears and confirmed with immunohistochemistry and cytogenetic studies. A diagnosis of PNET must be included in the differential diagnosis of renal masses in adolescents and young adults. |
| Databáze: | OpenAIRE |
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