Publicações científicas

Fine-needle aspiration cytology and immunocytochemistry in the diagnosis of 24 gastrointestinal stromal tumors: a quick, reliable diagnostic method

Lozano MD [ES], Rodriguez J [ES], Algarra SM, Panizo A, Sola JJ, Pardo J [ES].
Department of Pathology, Clinica Universitaria, University of Navarra, Pamplona, Spain.

Revisão:Diagnostic Cytopathology

Data: 1/Mar/2003

Oncologia Médica Anatomia Patológica [ES]

The diagnosis of gastrointestinal stromal tumors (GISTs) is generally established on histopathologic examination of surgical specimens. Fine-needle aspiration (FNA), performed under the guidance of ultrasound or computed tomography, is being used with increasing frequency in an attempt to diagnose primary and/or metastatic GISTs before surgery.

The present study was undertaken to characterize the cytological appearance of these tumors and to assess the role of cytology, together with immunocytochemistry (ICC), in the diagnosis of GISTs. Twenty-four GISTs diagnosed by FNA cytology at our institution have been reviewed. Immunocytochemical studies with c-kit and CD34 were performed in all cases on current or archival Papanicolaou-stained smears. All cases stained with c-kit, and 19 reacted with CD34. Cytomorphology and immunocytochemical characteristics are discussed.

Our results confirm the utility of FNA together with ICC in the diagnosis of primary and/or metastatic GISTs.

CITA DEL ARTÍCULO  Diagn Cytopathol. 2003 Mar;28(3):131-5

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