BackgroundMicropapillary variant of urothelial carcinoma (MPUC) showed distinct pathologic features and aggressive behavior. The cytologic findings of MPUC are still indistinct. In this study, we evaluated the cytological findings of MPUC compared with those of high-grade urothelial carcinoma (HGUC).MethodsThe voided urine cytology of 8 cases of MPUC and 8 cases of HGUC was reviewed. Following cytological parameters were evaluated: cellularity, background, number of small, tight papillary clusters, small acinar structure, scattered single cells, cytoplasmic features, nuclear-to-cytoplasmic ratio, nuclear pleomorphism, nuclear membrane irregularity, hyperchromasia, chromatin pattern and nucleoli.ResultsCompared to that of HGUC, cytology of MPUC showed large numbers of small, tight papillary clusters, small acinar structure, few numbers of single cells, and hyperchromatic nuclei. Other parameters were similar between the two groups; both groups showed similar cellularity, dense or vacuolated cytoplasm, moderate to severe nuclear pleomorphism, irregular nuclear membrane, coarse granular chromatin, and small and prominent nucleoli.ConclusionsThe urine cytology of MPUCs showed smaller and tighter papillary cell clusters, more small acinar structures, fewer numbers of scattered single cells, and more hyperchromatic nuclei than that of HGUC. These features can help to distinguish MPUC and HGUC and offer an early cytological diagnosis of MPUC.

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Autotransplantation of adrenal medullary tissue to the right caudate nucleus was performed in 8 patients (6 men and 2 women) with Parkinson''s disease demonstrating mainly rigidity and bradykinesia. Their mean age was 52 years. The mean duration of Parkinson''s disease was 7 years. Left adrenalectomy and open craniotomy were done to implant medullary tissue into the right caudate nucleus. The 6-month clinical fïndings were evaluated. 5 cases showed improvement, 2 cases remained unchanged and 1 was worse. There was no operative mortality, but 1 patient developed right frontal infarction postoperatively and 2 patients demonstrated subdural hygroma.