胃康复冲剂对胃癌前病变脾虚证胃粘膜超微结构的影响

目的：观察胃康复冲剂对胃粘膜组织超微结构的影响。方法：应用胃康复冲剂治疗６１例脾虚证胃粘膜肠上皮化生（ＩＭ）和不典型增生（ＡＴＰ）患者，治疗前后均作胃镜检查，取胃窦部粘膜作组织病理和超微结构检查。结果：脾气虚证与脾阳虚证病理疗效优于脾阴虚证和脾虚气滞证（Ｐ〈０．０５，Ｐ〈０．０１）；４组脾虚证胃窦部病灶区组织病理、肠化生亚型和非病灶区粘膜超微结构 的“背景病变”，在治疗后均有改善，趋向接近于健康对     

Melanotic neuroectodermal tumor of infancy: a histopathological and immunohistochemical study

Melanotic neuroectodermal tumor of infancy is an uncommon neoplasm that normally occurs in the anterior maxilla of children less than 1 year of age. This is a tumor with controversial origin, although neural crest origin is proposed. This case report presents an analysis of histopathological and immunohistochemical findings in this rare tumor.     

Androgenetic alopecia in males: a histopathological and ultrastructural study

Background  Androgenetic alopecia is a common cosmetic hair disorder, resulting from interplay of genetic, endocrine, and aging factors leading to a patterned follicular miniaturization. Microinflammation seems to be a potential active player in this process.
Aims  To study the histopathological and ultrastructural changes occurring in male androgenetic alopecia (AGA).
Patients/methods  Fifty-five subjects were included in this study (40 with AGA and 15 as normal age-matched controls). Skin biopsies from frontal bald area and occipital hairy area were subjected to histopathological examination, immunohistochemical staining for collagen I and ultrastructural study.
Results  The frontal bald area of patients showed highly significant increase in telogen hairs and decrease in anagen/telogen ratio and terminal/vellus hair ratio ( P  <   0.001). Perifollicular inflammation was almost a constant feature in early cases and showed a significant inverse correlation with perifollicular fibrosis ( P  =   0.048), which was more marked with thickening of the follicular sheath in advanced cases.
Conclusion  Follicular microinflammation plays an integral role in the pathogenesis of AGA in early cases. Over time, thickening of perifollicular sheath takes place due to increased deposition of collagen, resulting in marked perifollicular fibrosis, and sometimes ends by complete destruction of the affected follicles in advanced cases.     

ZOON''S VULVITIS

Zoon's vulvitis is reported in a 37 year old woman. Although this condition is very uncommon, diagonisis was definite on histopathological features. Treatment has failed to relieve severe discomfort which has been the main symptom.     

Relation of iodine-123 metaiodobenzylguanidine myocardial scintigraphy to endomyocardial biopsy findings in patients with dilated cardiomyopathy

Background: Iodine-123 metaiodobenzylguanidine (¹²³I-MIBG) concentrates in adrenergic neurons and has been developed for evaluation of the sympathetic nervous system. Recent studies have demonstrated that the normal heart is clearly visualized by ¹²³I-MIBG cardiac scintigraphy, whereas abnormal ¹²³I-MIBG myocardial uptake and washout have been demonstrated in patients after myocardial infarction and in patients with congestive cardiomyopathy, long QT syndrome, and ventricular tachycardia. Hypothesis: Based on evidence from recent studies, it can be hypothesized that ¹²³I-MIBG uptake is related to histopathologic changes in the myocardium. Methods: The relation of ¹²³I-MIBG uptake to the histologic findings for the heart was studied in 24 patients with dilated cardiomyopathy (DCM). The study group did not include patients with complicating disorders that primarily affect the adrenergic nervous system. The ¹²³I-MIBG uptake was visually assigned one of four grades using the two criteria of the mean score for six regional uptake grades (mean score) and the global score obtained by visual evaluation of the entire image (global score). The ¹²³I-MIBG uptake score was also determined for the region at which the biopsy specimen was obtained (biopsy region score). The histologic findings were evaluated by assigning one of four grades for each of the following five factors: myocyte hypertrophy, myocardial fibrotic change, myocyte degeneration and necrosis, mononuclear cell infiltration, and myocyte disarray. The sum for all grades was defined as the total score, and the global score was also assigned to the overall histologic findings. Results: All of the global, mean, and biopsy region scores for ¹²³I-MIBG uptake correlated significantly with the global and total scores for the histologic findings. Among the histologic factors, myocyte degeneration showed score correlated with all global, mean, and biopsy region scores for the uptake. Myocyte hypertrophy was associated weakly with the ¹²³I-MIBG uptake scores. Conclusion: These results indicate that ¹²³I-MIBG uptake imaging is associated with histopathologic abnormalities in patients with DCM.