Morphometric analysis of tissue melanin may quantitatively contribute to research on pigmentation disorders. The authors present three methods for image analysis, which allow for identification of melanin-equivalent pixels in the epidermis using Fontana-Masson stain and, therefore, for the calculation of its percentage in the different epidermal layers. Moreover, they discuss the main elements ...

BACKGROUND CONTEXT In recent literature, a soft-tissue communication between the rectus capitis posterior major (RCPma) muscle and the cervical dura mater has been identified. To the best of our knowledge, this communication has yet to be validated from a histological perspective nor has it been examined for neural tissue. PURPOSE The purpose of this study was to examine the composition and t...

Aerial bulbils are an important propagative organ, playing an important role in population expansion. However, the detailed gene regulatory patterns and molecular mechanism underlying bulbil formation remain unclear. Triploid Lilium lancifolium, which develops many aerial bulbils on the leaf axils of middle-upper stem, is a useful species for investigating bulbil formation. To investigate the m...

UNLABELLED Recent studies emphasize the importance of the clinical-histology correlation in laryngeal pathologies. OBJECTIVE To compare the ENT diagnosis with the pathology diagnosis one of 132 surgical specimens, from 119 patients with vocal nodules and polyps. METHOD Retrospective study. We investigated the paraffin blocks corresponding to the lesions of the operated patients. We made new...

BACKGROUND Tumors of the upper extremity are common and usually benign. The most commonly diagnosed are ganglion cysts: specific, non-neoplastic swellings localized mostly around the wrist. OBJECTIVE The objective of this retrospective study was to determine the proportion of various types of nonganglionic hand tumors operated on at the authors' institution in 2014. METHODS A total of 246 p...

OBJECTIVES Certain aspects of pulmonary pathology observed in autopsies of HIV/AIDS patients are still unknown. This study considers 250 autopsies of HIV/AIDS patients who died of acute respiratory failure and describes the demographic data, etiology, and histological pulmonary findings of the various pathologies. METHODS The following data were obtained: age, sex, and major associated diseas...

ALTHOUGH this technique of investigation has been practised for many years in Japan and reported by Konno, Sekiguchi and Sakakibara in 1971, it has only recently become,more widely used in Europe. So far, biopsy material from fifty-six patients*, thirty-nine of whom were suspected of suffering from a type of cardiomyopathy, have been examined. This paper concentrates on the diagnostic value whi...

This article reviews methods for quantifying the abundance of histological features in thin tissue sections of brain such as neurons, glia, blood vessels, and pathological lesions. The sampling methods by which quantitative measures can be obtained are described. In addition, methods are described for determining the spatial pattern of an object and for measuring the degree of spatial correlati...