Archives d'anatomie et de cytologie pathologiques最新文献

{"title":"[Bilateral scrotal panniculitis in a prepubescent child].","authors":"E Justrabo,&nbsp;L Martin,&nbsp;A Athias,&nbsp;A Rancke,&nbsp;C Billotey","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Scrotal panniculitis or scrotal fat necrosis is an uncommon acute scrotal pathology. We report a case of scrotal fat necrosis in a 9 1/2 year-old over-weight boy with bilateral tender scrotal masses, located beneath the tests. Pathologic findings were those of subcutaneous fatty indurated masses with lipogranulomatous foci. The etiology of scrotal fat necrosis is unknown. A similar condition has been described in young children exposed to cold. In obese prepubescent boys, a greater sensitivity to cold and a higher saturated fatty acid concentration of the scrotal adipose tissue would induce fat necrosis. Our study of fatty acid composition by gas-liquid chromatography showed an elevation of stearic acid. The spontaneous resolution of scrotal fat necrosis is always the rule and allows symptomatic treatment without surgical investigation.</p>","PeriodicalId":75531,"journal":{"name":"Archives d'anatomie et de cytologie pathologiques","volume":"46 3","pages":"208-12"},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20667776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Medullary thyroid carcinoma: evolution of concepts].","authors":"B Franc,&nbsp;E Modigliani","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>This article analyses in a large overview several of the actual problems encountered by pathologist in the management of MTC whatever the diagnostic circumstances. We insist on difficulties upon C cell hyperplasia and early detected disease. Unusual MTC cases are discussed. The need for large multidisciplinary group in studying such tumors is underlined with reference to the French GETC (Groupe d'Etude des Tumeurs à Calcitonine).</p>","PeriodicalId":75531,"journal":{"name":"Archives d'anatomie et de cytologie pathologiques","volume":"46 1-2","pages":"100-11"},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20667913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Embryonic and fetal development of structures associated with the cerebro-spinal fluid in man and other species. Part I: The ventricular system, meninges and choroid plexuses.","authors":"M Catala","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Little is known about the development of the central nervous system (CNS) in humans. Ethical considerations preclude experimental studies in this field, and as a result most available data on human ontogenesis are descriptive. Comparative anatomic and embryologic studies have demonstrated that the main developmental milestones are conserved across species, and their results can be used to suggest a likely scenario for human development. The development of the ventricles, meninges, and choroid plexuses are discussed in this article. The central cavity of the neural tube is formed during neurulation, which occurs during the fourth gestational week. The first milestone is occlusion of the spinal neurocele (the central canal in the neural tube) shortly after neurulation. This prevents free communication between the ventricular system and the amniotic cavity. The second milestone is development of the meninges, which separate the central nervous system from the rest of the body. The embryonic origin of the meninges varies across species. In birds (and probably in mammals), the spinal meninges are derived from the somitic mesoderm, the brainstem meninges from the cephalic mesoderm, and the telencephalic meninges from the neural crest. Differentiation of the meninges, which involves formation of the subarachnoid space, occurs early, before the cerebrospinal fluid (CSF) begins to flow around the CNS. During ontogenesis, the meninges play a key role in regulating the growth of underlying nervous structures. They induce the formation of the superficial glial limiting layer and stimulate the growth of precursors located in the superficial blastemas of the cerebellum and hippocampus. The choroid plexuses are complex specialized structures that produce most of the CSF. Their epithelium derives from the neural tube epithelium and their mesenchyma from the meninges. Of the many enzymes produced in the choroid plexuses, some reflect the pivotal metabolic role of these structures (alkaline and acid phosphatases, magnesium-dependent ATPase, glucose-6-phosphatase, thiamine pyrophosphatase, adenylate cyclase, oxidoreductase, esterases, hydrolases, cathepsin D, and glutathion S-transferase). The two enzymes that are crucial to the production of CSF are Na+/K+ ATPase and carbonic anhydrase. Inactivation of catecholamines is mediated by catechol-O-methyltransferase and by the monoamine oxidases A and B. The morphology and synthesis profile of the choroid plexuses changes during development, although little is known about these changes in humans.</p>","PeriodicalId":75531,"journal":{"name":"Archives d'anatomie et de cytologie pathologiques","volume":"46 3","pages":"153-69"},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20667919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Thyroid tumors].","authors":"J P Luton,&nbsp;P Chaumerliac","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":75531,"journal":{"name":"Archives d'anatomie et de cytologie pathologiques","volume":"46 1-2","pages":"9-10"},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20699317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Frozen section examination in thyroid pathology. Technique and effective indications].","authors":"S Guyétant,&nbsp;J P Saint-André","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Frozen section examination for intraoperative diagnosis is often difficult in thyroid pathology. Fine-needle aspiration is widely used in the patients selection for surgery. Such a selection is accompanied by an increase in difficult frozen section cases, whose diagnosis is often differed to permanent sections. Thus, frozen section sensitivity is relatively low. In the era of cost containment, an increasing number of authors suggest that frozen section examination is unnecessary, and that surgical planning could rely on preoperative cytology only. Others consider fine-needle aspiration cytological evaluation and frozen section examination as complementary tools and recommend their association. The authors describe the technical aspects and difficulties of frozen section examination in thyroid pathology, and discuss its interest in surgical planning, in the light of preoperative cytology. Each team has to estimate local thyroid cytology development and accuracy, to define new indications for frozen section examination in thyroid pathology, according to local therapeutic choices. Such an approach could consistently reduce the number of intraoperative consultation for thyroid pathology, without prejudice for the patients.</p>","PeriodicalId":75531,"journal":{"name":"Archives d'anatomie et de cytologie pathologiques","volume":"46 1-2","pages":"121-7"},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20667915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Diagnostic difficulties and limits in breast histopathology in core biopsies (breast microbiopsies)].","authors":"J P Bellocq,&nbsp;B Zafrani,&nbsp;M P Chenard","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Core biopsy is increasingly used for the diagnosis and management of breast lesions. As a result, pathologists are being confronted with new difficulties pertaining to (1) the histological diagnosis on micro specimens (2) the correlation between core biopsy histological findings and mammographic findings, (3) the diagnostic significance of atypical hyperplasia on core biopsies, (4) the impact of tissue displacement on surgical specimens after needling procedures, and (5) the disagreement that can appear between the diagnostic on surgical specimen and on core biopsy.</p>","PeriodicalId":75531,"journal":{"name":"Archives d'anatomie et de cytologie pathologiques","volume":"46 4","pages":"257-60"},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20667748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Fine-needle cytology and core biopsy of nonpalpable breast lesions. When appropriate?].","authors":"Y Grumbach","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The respective roles of fine-needle cytology and core biopsy for the investigation of breast densities and microcalcifications are discussed. For microcalcifications, the type, number, and conditions of development should be taken into account, and the reliability of investigations are directly related to stereotactic visibility, i.e., to advances in digitization. Fine-needle biopsy has been almost completely discarded as a means for investigating microcalcifications but remains useful when performed under ultrasound or stereotactic guidance to investigate densities presumed to be nonmalignant. Doubtful densities are best investigated by core biopsy.</p>","PeriodicalId":75531,"journal":{"name":"Archives d'anatomie et de cytologie pathologiques","volume":"46 4","pages":"219-21"},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20667777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Stereotactic and ultrasound guided fine-needle cytology in nonpalpable breast lesions].","authors":"P Vielh,&nbsp;J Klijanienko","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Histologic findings from two consecutive series of fine-needle biopsies of nonpalpable breast lesions were compared. The first series included 243 tumors sampled stereotactically, and the second 198 tumors sampled under ultrasound guidance. The results, together with data from the literature, demonstrated that: 1) the diagnostic efficacy of stereotactic fine-needle cytology of lesions seen on mammograms only as microcalcifications is inadequate; 2) ultrasound-guided fine-needle cytology is an extremely reliable diagnostic tool for lesions that are not seen only as microcalcifications.</p>","PeriodicalId":75531,"journal":{"name":"Archives d'anatomie et de cytologie pathologiques","volume":"46 4","pages":"237-40"},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20667744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Endobronchial granular cell tumor. A report of two cases in the course of staging of ORL cancers].","authors":"P Saint-Blancard,&nbsp;F Natali,&nbsp;J P Dufau,&nbsp;P L'Her,&nbsp;R Le Vagueresse","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>We report two new observations of endobronchial granular cell tumor discovering by bronchoscopy, during the staging of head and neck cancers. This site remains exceptional; the histologic features are well known. The ultrastructural and especially the immunohistological criteria trend to indicate a neurogenic histogenesis. Although the course is benign in this site and no malignant forms have been reported, local relapses are possible. However, some benign cases may have disturbing endoscopic and histologic features.</p>","PeriodicalId":75531,"journal":{"name":"Archives d'anatomie et de cytologie pathologiques","volume":"46 3","pages":"204-7"},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20667775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Epithelial tumors with thymus differentiation of the thyroid gland and the neck].","authors":"P Hofman,&nbsp;V Battaglione","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Epithelial tumors with thymus-like differentiation occurring in the thyroid gland and the neck, delineate four entities with distinct histological features and different behaviour. The spindle epithelial tumors with thymus-like differentiation are potentially malignant tumors occurring in the thyroid gland of young patients. They are highly cellular with pattern of spindle cells and tubulopapillary formations and mucinous glands. Carcinomas showing thymus-like differentiation of the thyroid gland are histologically identical to some thymic carcinomas. The ectopic hamartomatous thymoma is strictly benign and occurs in the soft tissues of the lower neck. It is characterized by spindle and solid or cystic islands of epithelial cells associated with adipose cells. The ectopic cervical thymoma is usually benign and histologically similar to mediastinal thymomas. All these tumors are particularly rare and arise from ectopic thymus or remnants of branchial pouch. The differential diagnoses of these tumors can be difficult and include some other proliferations occurring in the neck.</p>","PeriodicalId":75531,"journal":{"name":"Archives d'anatomie et de cytologie pathologiques","volume":"46 1-2","pages":"141-4"},"PeriodicalIF":0.0,"publicationDate":"1998-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"20667917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}