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PubMed Journal Database | Romanian journal of morphology and embryology = Revue roumaine de morphologie et embryologie RSS

16:59 EDT 25th March 2019 | BioPortfolio

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Showing PubMed Articles 1–25 of 120 from Romanian journal of morphology and embryology = Revue roumaine de morphologie et embryologie

The endometrial regeneration frontiers: from mechanisms to applications in regenerative medicine.

The endometrium is a unique and remarkable tissue characterized by a constant regeneration activity and this has been speculative for scientists, regarding its mechanism, regulatory factors, and their significance for fertility and endometrial pathology. Relatively recent scientific progresses due to genomics, proteomics, and transcriptomics have changed the knowledge in respect with endometrial regeneration and uterine-derived diseases. Our review is designed to highlight the recent progresses in understan...

Emerging concepts and latest advances regarding the etiopathogenesis, morphology and immunophenotype of basal cell carcinoma.

Basal cell carcinoma (BCC) represents the most common skin malignancy, which has been linked over time to multifactorial causes. It usually occurs on sun-exposed areas in people with fair skin and with predilection for men. BCC usually affects elderly patients and has an extremely wide range of histological subtypes, which can present clinically under different variants, some with really challenging differentials. Although BCC may occur in familial settings, such as nevoid BCC syndrome, Rombo or Bazex-Dupr...

Morphological and ultrasound findings in multiple pregnancy placentation.

The incidence of multiple pregnancy has significantly increased over the past decades, reaching different statistics to double, triple, or even overcome these numerical orders globally. Zygosity and chorionicity are the key elements in the multiple pregnancy but the placentation issue should be correlated primarily with zygosity, unlike chorionicity that should be correlated with the outcome and complications of multifetal gestation. Multiple pregnancy is by itself a special maternal-fetal condition, and th...

Vascular endothelial growth factor (VEGF) - key factor in normal and pathological angiogenesis.

Vascular endothelial growth factor (VEGF) represents a growth factor with important pro-angiogenic activity, having a mitogenic and an anti-apoptotic effect on endothelial cells, increasing the vascular permeability, promoting cell migration, etc. Due to these effects, it actively contributes in regulating the normal and pathological angiogenic processes. In humans, the VEGF family is composed of several members: VEGF-A (which has different isoforms), VEGF-B, VEGF-C, VEGF-D, VEGF-E (viral VEGF), VEGF-F (sna...

In vivo imaging of complicated atherosclerotic plaque - role of optical coherence tomography (OCT).

Cardiovascular diseases are the main cause of death worldwide, with coronary artery disease (CAD) being the predominant underlying etiology. Coronary angiography (CA) is the current invasive method used for CAD diagnosis, as well as for defining the coronary interventional treatment strategy. However, CA offers sometimes-poor accuracy in estimating atherosclerotic plaque volume, morphology and degree of stenosis severity. Optical coherence tomography (OCT) is an intracoronary imaging technique, developed in...

The involvement of EGFR, HER2 and HER3 in the basal cell carcinomas aggressiveness.

Basal cell carcinomas (BCCs) are the most common malignant skin tumors, with variable prognosis and recurrence rates, depending on histopathological subtypes. The study analyzed the immunoexpression of epidermal growth factor receptors (EGFRs) in 53 cases of nodular, adenoid and morpheaform BCCs in relation to clinico-pathological associated parameters. We found significant differences in the expression of EGFR, HER2 and HER3 reported to histological BCC types. The nodular type presented the weakest express...

Microglial morphology determined with confocal and two-photon laser scanning microscopy.

Microglia are the first and main form of active immune defense in the nervous system. The immune status of microglia is directly correlated to their morphology. Therefore, microglia morphology is used to distinguish between active and surveilling microglia. For the actual paper, we used confocal laser scanning microscopy (cLSM) and two-photon laser scanning microscopy (2P-LSM), to investigate microglia morphology of 14-16 weeks old male, transgenic mice (n=6). After obtaining, in vivo and fixed tissue, sing...

Craniofacial morphology and its relation to the eruption pattern of permanent teeth in the supporting zone of the dentition in a group of Romanian children in Timişoara.

The purpose of this study is to determine the cephalic and facial morphological typology in prepubertal children from Timişoara (Romania) and to develop a population-specific reference for the dental eruption of permanent teeth in the supporting zone of the dentition, in relation to the facial morphological typology. Using cephalic and facial indexes in a group of 234 preadolescents with mixed dentition, we quantified morphological associations between cephalic and facial types, using a cross-sectional des...

A micro-computed tomography study of morphological aspect of root canal instrumentation with ProTaper Next and One Shape New Generation in mandibular molars.

ProTaper Next (Dentsply Maillefer, Ballaigues, Switzerland) (PTN) and One Shape New Generation (MicroMéga, Besançon, France) (OSNG) belong to a relatively new generation of rotary nickel-titanium (NiTi) files. Scientists keep improving features of endodontic files in order to obtain anatomically shaped and cleaned root canals and avoid canal transportation, for a better outcome of the endodontic treatment. For the current study, the aim was to evaluate and assess the changes in root canal morphology after...

Optical biopsy strategy for the assessment of atrophic gastritis, intestinal metaplasia, and dysplasia.

The pathogenesis of gastric cancer involves premalignant changes of the gastric mucosa. An accurate estimation of the topography and severity of these lesions represents an important step in detecting premalignant lesions, thereby classifying patients into low or high risk of developing gastric cancer. We prospectively analyzed the diagnostic performance of narrow-band imaging with magnification endoscopy (NBI-ME) for assessing premalignant gastric lesions during real-time examination.

Anatomical considerations on the masseteric fascia and superficial muscular aponeurotic system.

The masseteric region is considered by the most researchers as a subdivision of the parotideomasseteric region. Because of its surgical significance, we emphasize it has distinctive morphofunctional features. The aim of this manuscript is to highlight particular characteristics of the masseteric region and practical applications of this concept. The material used was represented by 12 embalmed cephalic extremities dissected in "Ion Iancu" Institute of Anatomy, "Grigore T. Popa" University of Medicine and Ph...

Manufacturing nanostructured chitosan-based 2D sheets with prolonged antimicrobial activity.

The purpose of this study was to synthesize, characterize and test the antimicrobial and antifungal activity of chitosan-based hydrogels containing metal (silver - Ag) and oxide (zinc oxide - ZnO) nanoparticles (NPs) but also natural compounds such as usnic acid (UA). The two-dimensional (2D) sheets were obtained by electrospinning technique, with the aim to produce multifunctional wound dressing with regenerative and even anti-infective roles. The most important advantages of the electrospinning technique ...

Clinical and morphological correlations in early diagnosis of endometrial cancer.

The prevalence of endometrial cancer among asymptomatic women is rather reduced also due to the absence of a cost-efficient test, as there are no ideal screening examinations for endometrial cancer. Several methods were proposed in medical practice to discover endometrial neoplasia at an early stage, among which: endometrial biopsy, endovaginal ultrasound, targeted biopsy hysteroscopy. This study was made on a group of 38 patients monitored for metrorrhagia in the interval between July 1, 2014-July 1, 2016....

Lipomas of cervical area - clinical and pathological considerations.

Cervical lipomas are tumors that may present as painless masses with slow growth. This type of tumors is usually asymptomatic until they reach a large size. They can be solitary or multiple. When multiple and symmetrical distributed around neck area, the lesions can be classified as Madelung's disease, a rare condition that affects mostly Mediterranean men. Our objective was to describe the symptoms, cytological and histological aspects, diagnostic problems and treatment strategies of the large size lipomas...

Stage IV duodenal GIST requiring emergency pancreaticoduodenectomy - diagnosis difficulties and therapeutic options.

This paper presents a very rarely encountered case of a 45-year-old female, admitted in our Surgical Clinic for upper digestive bleeding (repeated hematochezia). The upper endoscopy was negative, but the barium meal discovered an apparently extrinsic duodenal (D3) stenosis; abdominal ultrasound diagnosed a left liver mass suggesting a metastatic tumor. The hematochezia relapse, with hemodynamic instability imposed emergency surgery; on laparotomy, a bleeding tumor located on the duodenopancreatic region was...

Left gluteal metastasis from a hepatocellular carcinoma - an unusual finding.

Hepatocellular carcinoma (HCC) is the primary malignant tumor of the liver that is directly derived from parenchymal cells. It is usually encountered in patients already suffering from a long-established liver disease that has evolved past the stage of liver cirrhosis. It is usually associated with viral liver infections, alcohol consumption or other dietary habits that lead to liver damage. Metastases are not rare and are usually found incidentally after a period of monitoring the main liver disease. We pr...

Cavernous liver hemangioma complicated with spontaneous intratumoral hemorrhage: a case report and literature review.

Hemangiomas, the most common benign tumors of the liver, have a prevalence of approximately 20% and are more frequent in women. According to previous studies, the size and location of the tumor are correlated with the appearance of symptoms and complications. Cases of hemangiomas complicated by spontaneous intratumoral hemorrhage have been rarely reported in the literature. Here, we report the case of a 70-year-old woman admitted for persistent upper abdominal pain. The patient showed signs of anemia, infla...

Vanek's tumor: a rare cause of gastric outlet obstruction. Case report and literature review.

Vanek's tumor or inflammatory fibroid polyp (IFP) is a rare submucosal, mesenchymal tumor of the digestive tract, of unknown etiology. We present an unusual case of a 62-year-old female patient, investigated for intermittent nausea, vomiting, abdominal pain and anemia. Narrow-band imaging (NBI) endoscopy showed a polypoid tumor with normal coverage mucosa prolapsing through the pylorus. The tumor was surgically removed. Histopathological (HP) examination revealed the presence of spindle cells with uniform n...

The role of immunohistochemistry in the diagnosis and management of synovial sarcoma.

Synovial sarcoma (SS) is a malignant soft tissue tumor representing 5-10% of all soft tissue sarcomas. Most synovial sarcomas are found at the extremities, especially in the lower limbs. A 28-year-old female presented at the Department of Plastic and Reconstructive Surgery, "Dr. Pius Brînzeu" Clinical Hospital, Timişoara, Romania, for evaluation of a mass located in the anterior region of the elbow. Imagistic, histological and immunohistochemically evaluations established the diagnosis of monophasic spind...

Indication of total parathyroidectomy for an Epstein syndrome patient with end-stage renal disease.

Epstein syndrome is an extremely rare genetic disorder characterized by the association of nephritis, deafness and megathrombocytopenia. We present the case of a 21-year-old patient diagnosed with Epstein syndrome and hyperparathyroidism secondary to chronic kidney disease. The main particularity of this case resides in the association between megathrombocytopenia and secondary hyperparathyroidism requiring surgery, which could lead to a series of concerns regarding the intra- and postoperative hemorrhagic ...

Cystic lymphangioma of nasopharynx in a 54-year-old man - case report. A new histogenetic hypothesis.

Lymphangiomas are enough rare benign congenital tumors of the lymphatic vessels, frequently encountered during childhood. They are found in the head and neck region, the isolated localization in the nasopharynx is very rare. We present the case of 54-year-old man admitted in the Department of Ear, Nose and Throat (ENT), Emergency University Hospital of Bucharest, Romania, with a nasopharynx tumor certificated by computed tomography (CT) scan with significant bleeding to a previous incisional biopsy temptati...

Primary diffuse large B-cell lymphoma of the testis.

Non-Hodgkin's lymphomas are chronic lymphoproliferative disorders, with nodal or extranodal onset, most of which being digestive tract lymphomas. Testicular primitive lymphoma generally affects men; it is rare but aggressive type of lymphoma. We present the case of the only patient diagnosed with testicular lymphoma in Hematology Clinic of Craiova, Romania, in the last 20 years. Histopathological and immunohistochemical exams confirmed the diagnosis of diffuse large B-cell lymphoma, and the stage was IIB. A...

Diagnostic challenges in a patient with calciphylaxia - a case report.

Calciphylaxis is a condition with unclear etiopathogeny with vascular calcifications and thrombotic occlusion that lead to necrotic lesions. It is usually described in patients with end-stage renal disease (ESRD), but also in other conditions. The mortality rate is high, due to sepsis and internal organ failure. We present the case of a patient with multiple comorbidities (ESRD, diabetes, hypertension, Mönckeberg's sclerosis) with problems of differential diagnostic due to the necrotic lesions that mislead...

Tracheal enlargement or Mounier-Kuhn syndrome in giant cell arteritis: a possible causal association with therapeutic implications.

Giant cell arteritis (GCA) is a large-vessel vasculitis with rarely described respiratory initial manifestations. We report such a case presenting with hoarseness, stridor, cough and dyspnea, in which a tracheomegaly with tracheomalacia was found. No signs of relapsing polychondritis were present. The respiratory symptoms rapidly improved after glucocorticoids and Azathioprine. Tracheomegaly or Mounier-Kuhn syndrome is characterized by marked dilatation of trachea and central bronchi. The differential diagn...

Left internal carotid artery agenesis associated with communicating arteries anomalies. A case report.

Agenesis, aplasia and hypoplasia of the internal carotid artery are rare congenital malformations. They are usually asymptomatic and incidentally discovered through ultrasound or imagistic tests. The aim of this study is to improve their management in our Departments. We report here the case of a 39-year-old woman addressed to our ambulatory in 2013 for benign symptoms like dizziness and headache. Imagistic findings (magnetic resonance imaging of the brain, and cervical spine, and magnetic resonance angiogr...


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