Abstract:
:Liver biopsies from 16 children with clinical and pathologic evidence of chronic hepatitis have been examined by electron microscopy for cytoplasmic and nuclear changes. Parallel studies by radioimmunoassay on sera from the same patients support the diagnosis of all these cases as non-A, non-B hepatitis (NANB). Ultrathin sections of the liver biopsies demonstrated in one case intranuclear hepatitis B virus-like core particles, 25 nm diameter. In a second biopsy from the same patient, the corelike particles could still be observed. This finding could be used either to support the thesis that a NANB virus is a member of the hepadnavirus group or to reflect the existence of seronegative cases of chronic HBV infection. Furthermore, we have observed in some mononuclear cells from the inflammatory infiltrate of a portal tract, some structures that resemble virus budding. There is a striking similarity between the morphology of these particles (which are enveloped and possess projections) and the ultrastructure of retrovirus.
journal_name
Ultrastruct Patholjournal_title
Ultrastructural pathologyauthors
Herrera MI,Vindel AM,Alonso M,Moreno P,Pérez Alvarez L,Jara P,Díaz MCdoi
10.3109/01913128509142152subject
Has Abstractpub_date
1985-01-01 00:00:00pages
191-6issue
2-3eissn
0191-3123issn
1521-0758journal_volume
8pub_type
杂志文章abstract::Peeling skin syndrome is a rare dermatosis characterized by spontaneous and painless peeling of the skin. The authors report two patients with history of spontaneous, asymptomatic, and noninflammatory peeling skin of the acral surfaces after soaking in water. On light microscopy, blisters were located in the mid layer...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.1080/01913120590909867
更新日期:2005-01-01 00:00:00
abstract::Four cases of epithelioid hemangioendothelioma of bone--a borderline malignant tumor of vascular origin--were studied ultrastructurally and immunohistochemically. The epithelioid tumor cells were positive for vimentin, polyclonal and monoclonal cytokeratins, and the endothelial markers factor VIII-related antigen (FVI...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:
更新日期:1990-03-01 00:00:00
abstract::This report describes the light (LM) and electron microscopic (EM) features and the results of an indirect immunofluorescence study (IF), the latter using monoclonal and monospecific antibodies to cytoskeletal proteins, of a malignant, invasive and metastatic breast myoepithelioma. A 53-year-old female underwent maste...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.3109/01913128509141504
更新日期:1985-01-01 00:00:00
abstract::In the last two decades, the ability of mesangial cells to respond to various stimuli or injurious agents by altering their phenotype and function has become recognized. The plasticity of these mesangial cells has been linked to the morphological and functional alterations responsible for the pathologic findings. Many...
journal_title:Ultrastructural pathology
pub_type: 杂志文章,评审
doi:10.1080/01913120600932594
更新日期:2006-11-01 00:00:00
abstract::Excessive consumption of carbohydrate and fat increases the risk of liver disease. We hypothesized that swim exercise can protect hepatocytes from ultra-structural damage induced by high cholesterol and fructose diets (HCFD). Rats were either fed with HCFD (model group) or a standard laboratory chow (control group) fo...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.1080/01913123.2017.1422581
更新日期:2018-03-01 00:00:00
abstract::A 28-year-old man presented with left cervical lymph node metastases and a 7-cm mass in the left lobe of the liver. Biopsy material from both sites revealed a fibrolamellar hepatocarcinoma (FLHC) with immunocytochemical and ultrastructural evidence of neurosecretory differentiation. The patient refused treatment. He d...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.3109/01913129409016302
更新日期:1994-01-01 00:00:00
abstract::Tissue biopsies and peripheral blood samples from 10 patients with the characteristic clinical features of acquired immunodeficiency syndrome (AIDS) were examined by electron microscopy and ultracytochemical myeloperoxidase technique. Abundant tubuloreticular inclusions (TRI) were detected within the endoplasmic retic...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.3109/01913128309140585
更新日期:1983-06-01 00:00:00
abstract::Conidiobolus coronatus is a major insect pathogen belonging to the fungal order Entomophthorales, causing a rare subcutaneous infection of the nasofacial region, resulting in swelling of predominantly the nose, mouth, and perinasal tissue. Later in the course of the infection firm, painless, subcutaneous nodules devel...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.1080/01913120500482013
更新日期:2006-01-01 00:00:00
abstract::This study evaluated, by SEM, the morphology of human primary teeth roots. Twenty-four teeth were divided into 3 groups: pulp vitality (group I) and pulp necrosis without (group II) and with apical periodontitis (group III). Roots were analyzed by the presence of periodontal ligament (PDL) fibers and resorption areas....
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.3109/01913120903275642
更新日期:2009-10-01 00:00:00
abstract::We describe in this work the presence of extracellular vesicles (EVs) along different cell types, especially cordocytes, in various clinical conditions of the human brain (atherothrombotic disease, cerebral tumors, hygroma durae matris, intracerebral cysts, Moyamoya disease and parenchymatous hematoma) using transmiss...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.3109/01913123.2014.981327
更新日期:2015-05-01 00:00:00
abstract::Dysembryoplastic neuroectodermal tumor (DNT) is a rare brain neoplasm. Although the tumor pathology is relatively well charactererized, its full clinicopathological spectrum is still discussed, and ultrastructural data on it are very limited. Here, the authors describe detailed ultrastructural pathology of 7 cases of ...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.1080/019131201753343494
更新日期:2001-11-01 00:00:00
abstract::Thirteen malignant mesotheliomas of a sarcomatous type were studied by light microscopy and ten were studied by electron microscopy. The histologic patterns varied from tumor to tumor, often resembling other soft tissue sarcomas. Electron microscopic observation showed most of the tumors to be composed of primitive ce...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.3109/01913128309140587
更新日期:1983-06-01 00:00:00
abstract::A slowly growing tumor in the right shoulder of a 38-year-old white male, which felt like a superficial cystic mass, was studied. The spindle cells, which represented the main component of the tumor, were arranged in a typical storiform pattern and were positive for CD34 and focally for CD117. The pigmented cells were...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.1080/01913120309935
更新日期:2003-05-01 00:00:00
abstract::The present study provides ultrastructural information about the acaricidal effects of neem (Azadirachta indica A. Juss) on the ovaries of R. sanguineus engorged females. In general, the main damage caused in the oocytes was alteration in the shape of the cell and of the germinal vesicle, ring-shaped nucleolus, cytopl...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.3109/01913123.2011.588819
更新日期:2012-02-01 00:00:00
abstract::Six intradermal melanocytic nevi, two with and four without intercellular slitlike spaces, were examined by light microscopy and electron microscopy of deparaffinized tissue. The spaces were partially lined by elongated nevus cells and contained a few collagen fibrils. Other features in both groups included an abundan...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.3109/01913128009141438
更新日期:1980-07-01 00:00:00
abstract::To evaluate the contribution of electron microscopy to the final diagnosis of glomerulopathies, the authors established a prospective study during the first semester of 2006. A total of 52 kidney biopsies were performed with 3 samples for light microscopy, immunofluorescence, and electron microscopy. Among these renal...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.3109/01913120903506637
更新日期:2010-04-01 00:00:00
abstract::Abstract Metastases to the pituitary occur more frequently in patients with widespread cancer and mainly involve the posterior lobe. A few cases of metastatic carcinoma to a pituitary adenoma have been described so far. Here, the authors present an additional case of a clear cell renal cell carcinoma (CCRCC) metastati...
journal_title:Ultrastructural pathology
pub_type: 杂志文章,评审
doi:10.3109/01913123.2014.937843
更新日期:2014-12-01 00:00:00
abstract::A 69-year-old woman presented with visual disturbance. Perimetry testing revealed a bitemporal hemianopia. Brain MRI demonstrated a 2.2-cm gadolinium-enhancing pituitary mass. Previously she had been treated for hypothyroidism, hypertension, and dyslipidemia. She had hyperprolactinemia. Endoscopic transsphenoidal debu...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.3109/01913123.2011.642465
更新日期:2012-04-01 00:00:00
abstract::A 15-year-old girl presented with a small, indolent mass near the knee joint. Light microscopy revealed a peculiar myxoid plexiform tumor composed of cytologically bland cells. Interpretation of the initial biopsy material was controversial. Subsequent immunohistochemical studies revealed tumor cells to be strongly re...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.3109/01913129309027771
更新日期:1993-05-01 00:00:00
abstract::Clear-cell carcinomas of the female genital tract are uncommon tumors that usually arise in the ovary, cervix, or vagina. The objectives of the present study were to examine the immunohistochemical and ultrastructural characteristics of 18 of these tumors and to determine whether any distinctive features were present ...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.3109/01913129609016357
更新日期:1996-11-01 00:00:00
abstract::The term "neuronal ceroid lipofuscinosis" (NCL) describes a complex of inherited neurodegenerative conditions associated with storage of lipopigments in brain tissue. In 1989 Dyken proposed a classification of NCL based on the age, clinical symptoms, and ultrastructural aspects of the lipopigments. At the ultrastructu...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.1080/019131201300004681
更新日期:2001-01-01 00:00:00
abstract::The morphological changes found in kidneys of patients undergoing chronic Cyclosporine A (CSA) treatment could, despite of numerous attempts, not yet be reproduced in reliable experimental models. The purpose of the present investigation was to systematically scan the in vivo fixed kidneys in CSA treated Wistar rats a...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.3109/01913128709048438
更新日期:1987-01-01 00:00:00
abstract::Lymphoma diagnosis rarely needs electron microscopy (EM), but one area where it can be useful is in the distinction of cytokeratin-positive lymphoma from carcinoma. The authors describe such a case, where difficulties were encountered due to lack of antibody specificity, distinguishing reactive from tumoral cells, and...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.1080/01913120802625830
更新日期:2009-01-01 00:00:00
abstract::Neuroblastic tumors have the unique ability to differentiate and mature. This family of tumors is composed of the neuroblastoma, ganglioneuroblastoma, and ganglioneuroma. These tumors are derived from primordial neural crest cells that form the sympathetic nervous system. The purpose of this study was to characterize ...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.3109/01913129509064236
更新日期:1995-07-01 00:00:00
abstract::We report a case of primary intraabdominal ependymoma arising in the retropubic space of a male patient. An incidental intraabdominal mass was discovered in a 51-year-old man. Radiological studies revealed a 10 cm, solid and cystic tumor located in the Retzius fossa. Microscopically, the lesion was characterized by mu...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.1080/01913123.2020.1836104
更新日期:2020-11-20 00:00:00
abstract::The ultrastructural characteristics useful in identifying a selected series of histologically difficult to diagnose malignant neoplasms of the human gynecological sphere are presented. The results are discussed in relation to routine diagnosis and when appropriate, to their pathogenic origin. ...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.3109/01913128709048330
更新日期:1987-01-01 00:00:00
abstract::Thickening of capillary walls is a feature of many glomerular diseases. Widening of the wall may be produced by deposits and other changes affecting either subepithelial and subendothelial regions or the glomerular basement membrane itself. Careful light microscopic examination using special stains can distinguish som...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.3109/01913128309140784
更新日期:1983-03-01 00:00:00
abstract::Eighty-four cortical neoplasms were studied for cytokeratin and vimentin expression by immunohistochemistry and for intermediate filament aggregates by electron microscopy. Twenty oncocytomas expressed cytokeratin, 16 in a distinctive punctate pattern. These same 16 tumors also contained small globular filamentous bod...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.3109/01913129109016259
更新日期:1991-07-01 00:00:00
abstract:OBJECT:To study the relationship between monocyte/histiocyte activation and myelodysplastic syndrome (MDS). METHODS:Analyzing ultrastructure and myeloperoxidase reaction of nucleated cells in bone marrow from 59 cases of MDS by transmission electron microscopy. Four groups of MDS were subdivided on the basis of their ...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.3109/01913123.2014.888116
更新日期:2014-08-01 00:00:00
abstract::To extend our initial observations that recombinant gamma-interferon (r gamma IFN) influences the growth and differentiation of normal cultured human keratinocytes, we studied the electron microscopic changes induced by r gamma IFN. Treatment of cultured human keratinocytes with 10(3) units/ml (7.1 nM) of r gamma IFN ...
journal_title:Ultrastructural pathology
pub_type: 杂志文章
doi:10.3109/01913128609015559
更新日期:1986-01-01 00:00:00