We report a case of fibroadenoma of the supernumerary breast of axilla, diagnosed by fine-needle aspiration. A 31-yearold pregnant woman reported a left. axillar mass. Cytological examination and fine-needle aspiration from the mass showed many clusters of cohesive epithelial cells with single, stripped nuclei and bipolar cells in the background. Histopathological examination of the surgical excisional sample showed a well-defined, capsulated pericanalicular type of fibroadenoma. The diagnosis of supernumerary breast is important because it can be a marker for urological and caldiovascular malformation.
We report a rare case of radial scar of the breast in a 42-yearold woman. Although no palpable mass was noticed, mammography, CT, and echography indicated scirrhous carcinoma. Fine needle aspiration showed benign ductal epithelial cells with myoepithelial cells and spindle stromal cells with hyalinized collagenous deposits. The lesion was histologically characterized by epithelial proliferations and stellate fibrosis with central hyalinized deposits.The finding of benign proliferative epithelium, spindle stromal cells, hyalinized collagenous deposits in conjunction with characteristic mammographic appearance is indicative for a diagnosis of radial scar.
A 5-year-old boy admitted for abdominal pain and brownish urine was found in CT to have a 10 × 10 cm mass, in the left kidney, necessitating nephrectomy. Histological diagnosis was nephroblastic nephroblastoma. Imprint cytology showed a randomly diffuse proliferation of cells with round nuclei and sparse cytoplasm, partly forming an acinar structure. Overlapping clusters of spindle cells were also present. Cytology of nephrobastoma has seldom reported. In diagnosing this rare disease, however, it would be helpful to be aware of the cytological findings of nephroblastoma.
We encountered a case of renal oncocytoma which was difficult to distinguish from renal cell carcinoma with an intraoperative frozen section, but differential diagnosis was possible with an imprint cytology specimen. The tumor cells represened moderately plcomorphic and polygonal nuclei in the frozen section. Imprint cytology, however, did not show such atypia of tumor cells. The reason for the discrepancy of tumor cells morphology between both specimens seems to be derived from the difference in the methods of specimen preparation: morphology in the frozen section tends to be artificially influenced by water contained in the tissue. On the other hand, the imprint cytology specimen seems to keep the original histological features more faithfully. Thus, this case would appear to suggest the importance of imprint cytology for the intraoperative diagnosis of renal cell tumors.