Time filter

Source Type

Norimatsu Y.,Ehime Prefectural University of Health Sciences | Kawai M.,Matsusaka Chuo General Hospital | Kamimori A.,Matsusaka Chuo General Hospital | Yuminamochi T.,Yamanashi University | And 5 more authors.
Diagnostic Cytopathology | Year: 2012

This study was undertaken to clarify the origin of the chromophilic substance that stained in light green [light green body (LGB)] was observed in the condensed cluster of stromal cells and in the background of endometrial glandular and stromal breakdown cases. The material consists of cytologic smears of endometrial glandular and stromal breakdown (EGBD) from 58 samples in which a histopathological diagnosis was subsequently obtained by endometrial curettage. The following parameters were examined. (1) The occurrence and number of a LGB. As for the "condensed cluster of stromal cells," "condensed cluster of stromal cells including LGB" and "LBG in background," it was observed with all fields on one slide per case. When it was observed more than one in a preparation, the occurrence was determined and the number was also calculated. (2) Immunostaining of paraffin-embedded tissue sections and cytologic preparations. The occurrence of "condensed cluster of stromal cells," "condensed cluster of stromal cells including LGB" and "LGB in background" was 100%, 44.8% and 91.4%, respectively. The number of "condensed cluster of stromal cells," "condensed cluster of stromal cells including LGB" and "LGB in background" was 21.2, 2.0 and 4.0, respectively. When histological sections from paraffin-embedded tissue were tested by immunocytochemistry, "LGB" stained weakly or negative for fibrinogen, whereas it stained positively for CD31 and factor VIII. In addition, it stained positively for CD42b. When cytologic preparation was tested by immunocytochemistry, "LGB" stained positively for CD31, factor VIII and CD42b. However, as for the fibrinogen, quantitative and qualitative evaluation of the immunocytochemical stain was not feasible due to extensive nonspecific reaction in the whole preparation. The "LGB" in EGBD cases proved to be a thrombus mostly made up by platelets, and it seemed that the recognition of the LGB showed to be a useful cytomorphological criterion for an always more accurate diagnosis of EGBD cases. Copyright © 2010 Wiley Periodicals, Inc.

Hattori M.,Kitasato University | Kobayashi T.K.,Imperial Gift Foundation Inc. | Kobayashi T.K.,Osaka University | Nishimura Y.,Kitasato University | And 4 more authors.
Diagnostic Cytopathology | Year: 2013

We evaluated the differences in cytologic findings between conventional and thin-layer preparations in endometrial cytology to introduce the thin-layer method into routine cytology. Eighty patients who had undergone endometrial cytology and biopsy on the same day were selected and we compared the cytological findings between conventional- and thin-layer preparations (TLP) in endometrial cytology. The numbers of neutrophils and cell clusters in the thin-layer method were lower than those in the conventional smear (CSS) method. The average number of neutrophils in endometrioid adenocarcinoma was significantly higher than that in normal morphology endometrium and endometrial hyperplasia. Regarding the shape of the cell clusters, ball-like patterns and round-edged cell clusters were not identified in CSS. The average number of clusters in CSS was significantly greater than that using the TLP. The average of the nuclear area in CSS was significantly larger than that using the TLP, indicating that the nuclear areas in CSS were more uneven than that using the TLP. In the future, it is expected that liquid-based cytology will be applied to the cytological diagnosis of a variety of lesions. The influence on cells due to fixation is considerable in liquid-based preparations. Therefore, if we strive to pick up the differences between CSS and TLP of endometrial samples, the diagnostic accuracy of the latter could be improved. Copyright © 2012 Wiley Periodicals, Inc.

Norimatsu Y.,Ehime Prefectural University of Health Sciences | Funakoshi M.,JA Hiroshima General Hospital | Kamei T.,Yamaguchi Grand Medical Center | Kawano R.,Kawano Medical Clinic | Kobayashi T.K.,Imperial Gift Foundation Inc.
Diagnostic Cytopathology | Year: 2011

We report a case of neuroendcrine (NE) carcinoma in the right breast of a 67-year-old female, ultrasonography revealed a lesion composed of irregular hypoechoic masses and mammography showed asymmetric breast tissue. Histopathologic examination of the surgical sample showed a solid to nested proliferation of plasmacytoid cells that showed immunocytochemical positivity for chromogranin A, synaptophysin, CD56, and estrogen receptor. Our case was diagnosed as solid NE carcinoma. Though the findings of fine needle aspiration cytology reflected the histological features, we were not able to cytopathologic grounds only to predict the NE nature of this tumor. We performed immunocytochemistry using Chromogranin A, Synaptophysin, and CD56 on our cytologic smear retrospectively with positive results for all of the markers. When the cytopathologic examination of a given breast neoplasm is suggestive of NE differentiation, immunocytochemical staining for NE markers is generally useful for a correct preoperative diagnosis. An acurate preoperative diagnosis of NE carcinoma on FNAC can be achieved based on its distinctive cytomorphologic and immunocytochemical features. © 2010 Wiley-Liss, Inc.

Norimatsu Y.,Ehime Prefectural University of Health Sciences | Shigematsu Y.,Shigei Medical Research Hospital | Sakamoto S.,Red Cross | Ohsaki H.,Ehime Prefectural University of Health Sciences | And 4 more authors.
Diagnostic Cytopathology | Year: 2013

The aim of this study was to assess the utility of liquid-based cytologic preparation (LP) compared with conventional preparation (CP) for the assessment of nuclear findings in endometrial glandular and stromal breakdown (EGBD) which may be misdiagnosed as carcinoma in EGBD cases. The material consists of cytologic smears including 20 cases of proliferative endometrium (PE), 20 cases of EGBD, and 20 cases of endometrioid adenocarcinoma grade1 (G1) for which histopathological diagnosis was obtained by endometrial curettage at the JA Suzuka General Hospital. Nuclear findings were examined in PE cells, EGBD-stromal cells, EGBD-metaplastic cells, and G1 cells, respectively. It was examined about the following items; (1) nuclear shape; (2) A long/minor axis ratio in cell nuclei; (3) an area of cell nuclei; (4) overlapping nuclei. Results are as follows: (1) nuclear shape; as for the reniform shape of EGBD-stromal cells and spindle shape of EGBD-metaplastic cells, the ratio of the LP method was a higher value than the CP method. (2) The long axis and area of cell nuclei; LP in all groups was a recognizable tendency for nuclear shrinkage. (3) The long/minor axis ratio in cell nuclei; only EGBD-metaplastic cells recognize a significant difference between CP and LP. (4) Overlapping nuclei; LP was a higher value in comparison with CP in the other groups except PE cells, and the degree of overlapping nuclei was enhanced about three times. Therefore, although a cell of LP has a shrinking tendency, (1) it is excellent that LP preserves a characteristic of nuclear shape than CP; (2) a cellular characteristic becomes clearer, because three-dimensional architecture of LP is preserved of than CP. As for the standard preparation method for endometrial cytology samples, we considered that a concrete introduction of the LP method poses no problems. Diagn. Cytopathol. 2013. © 2011 Wiley Periodicals, Inc Copyright © 2011 Wiley Periodicals, Inc.

Hata S.,Kawasaki Medical School | Hata S.,Kurashiki University of Science and the Arts | Kanomata N.,Kawasaki Medical School | Kozuka Y.,Kawasaki Medical School | And 6 more authors.
Diagnostic Cytopathology | Year: 2011

The objective of this study was to introduce the clinical and cytological aspects of myospherulosis. A total of 5,174 consecutive breast fine needle aspiration (FNA) cytology cases were reviewed, among which 23 cases of myospherulosis of the breast were found, all in female patients. The main findings of myospherulosis, best seen with the Papanicolaou stain, consisted in the observation of spherules that were homogeneously smooth or contained one or more internal dense bodies. Routine Papanicolaou-stained slides with or without Romanowsky staining were analyzed. Immunocytochemistry was conducted for carbonic anhydrase 1 (CA1), glycophorin C, KP1, and PGM1. The patients' ages ranged from 41 to 79 years (mean age: 56 years). Of the 23 patients, 21 had a previous history of breast surgery. Cytologically malignant or suspicious diagnoses were made in four of the 23 cases. The size of parent bodies varied from 18.2 to 151 μm (mean, 52 μm). The size of spherules ranged from 2.1 to 16.4 μm (mean, 6.6 μm). Immunocytochemistry showed that the myospherules reacted with anti-CA1 and anti-glycophorin C antibodies. Most breast myospheruloses occur in patients with a history of breast surgery. Immunocytochemistry for CA1 and glycophorin C can enhance the diagnosis of myospherulosis. Copyright © 2011 Wiley-Liss, Inc.

Discover hidden collaborations