Using an intraoperative cytological procedure, we improved the diagnosis of small lung tumors showing ground grass opacity. We punctured the center of the lesion in a resected lung using an injection needle, harvested cells in the syringe, and observed the obtained cells rapidly microscopically. This technique is useful for checking whether cancer cells were contained in the resected lung without having to cut the tumor during intraoperative evaluation, which would have made it difficult to evaluate pleural or stromal invasion in the postoperative assessment of tumor aggressiveness.
Adenoid cystic carcinoma (ACC) in the male breast is vary rare, and 9 cases have been reported in the literature. We report on a case of ACC in the male breast from the point of the cytological findings. A 58-year-old male noticed a lump measuring 40 mm in the left breast. Cytologically, the myoepithelial and epithelial cells had proliferated and formed clusters with various sizes. In the large clusters, glandular structures and ball-like structures with mucous materials were seen. Histologically, tumor cells had proliferated in the cribriform structures composed of proliferating glands and psuedoglandular elements. ACC was diagnosed based on the immunostaining results.
We report on a case of chordoid meningioma which is a rare histological variant of meningioma. A male in his 70’s with a calvarial tumor was admitted to our hospital. The tumor mass as assessed on computed tomography and magnetic resonance imaging was 5.0×3.0×2.5 cm. The tumor was removed. The crushed cytology showed good combination clusters, weak clusters and epithelioid cells. The tumor cells had oval or irregular nuclei, which were similar to adenocarcinoma, and a foamy cytoplasm. There were mucinous matrices at the border of the cluster. Histologically, the tumor was composed of strands, nests and lobules, surrounded by a mucinous matrix which was dyed with alcian blue at PH2. Immunohistochemically, the tumor cells were at least focally positive for epithelial membrane antigen.