Fig. 1From: Intraoperative fine needle aspirations - diagnosis and typing of lung cancer in small biopsies: challenges and limitationsIntraoperative Fine Needle Aspirations in cases of false negative cytological diagnosis. Tumor cells of a finally high differentiated adenocarcinoma (bronchiolo-alveolar cell type, a Giemsa, 630x). Infiltration of malignant mesenchymal cells of a fibrosarcoma. b Giemsa staining of tumor in high magnification (630x). Necrotic area from the center and squamous epithelial cell dysplasia in the surrounded neighborhood of a finally squamous cell carcinoma (c and d)Back to article page