Clinical management of a unique case of PNET of the uterus during pregnancy, and review of the literature

AbstractRationale:PNETs (primitive neuroectodermal tumors) are a family of highly malignant neoplasms characterized by small round cells of neuroepithelial origin. They usually involve bone and soft tissues, and have a higher incidence in childhood.Patient concerns:In this case report, we describe the obstetric and oncological outcome of a huge mass diagnosed as a leiomyoma in a 39-year-old pregnant woman who complained of low back pain, dysuria, and urinary frequency at 22 weeks of gestation.Diagnoses:During the 25th week of pregnancy, the patient was referred to our hospital at night with severe anemia and suspected hemoperitoneum. She underwent an emergency caesarean section, delivering a female fetus weighing 400 g, with an Apgar score of 7 at 1 minute and 9 at 5 minutes.Intervention:During surgery, we found a huge uterine sarcoma-like metastatic tumor, invading the pelvic peritoneum and parametria bilaterally; the adnexae seemed disease-free. We performed a type B radical hysterectomy, bilateral salpingo-oophorectomy, pelvic peritonectomy, omentectomy, appendectomy, and excision of a bulky lymph node. Seven days after delivery, staging computed tomography (CT) scan demonstrated a large lombo-aortic lymph node compressing the left renal vein and we completed debulking with a second surgery, including diaphragmatic peritonectomy and excision of a huge lymph node by lombo-aortic lymphadenectomy, requiring partial reconstruction of an infiltrated renal vein.Outcome:Ten...
Source: Medicine - Category: Internal Medicine Tags: Research Article: Clinical Case Report Source Type: research

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We report energy band bending of methylammonium lead halide (MAPbI3) perovskite film in contact with indium-tin-oxide (ITO) surface using photoelectron spectroscopy in air (PESA) and ultraviolet photoelectron spectroscopy (UPS) measurements. MAPbI3 perovskite films were vacuum-deposited using co-evaporation of methylammonium iodide (CH3NH3I, MAI) and lead iodide (PbI2) powders. Using PESA and UPS, the highest occupied molecular orbital levels were measured varying the thickness of the perovskite films. Substantial energy band bending close to the ITO surface was not observed. The vacuum-deposited perovskite films feature a...
Source: Results in Physics - Category: Physics Source Type: research
Publication date: Available online 21 September 2018Source: Results in PhysicsAuthor(s): H.H. Zhang, Y. Chen, Z. ZhangAbstractTwo benzaldehyde thiosemicarbazone derivatives namely 3-methoxy,4-hydroxyl-benzaldehyde thiosemicarbazone (MHBT) and 2-hydroxyl,3-methoxy-benzaldehyde thiosemicarbazone (HMBT) were synthesized and their inhibition behavior for mild steel in 1.0 M HCl solution was investigated using gravimetric measurements and electrochemical tests. Weight loss measurements suggested that these two compounds acted as efficient inhibitors for mild steel in 1.0 M HCl solution and the inhibition efficiency reached a ma...
Source: Results in Physics - Category: Physics Source Type: research
We present a rapid and label-free method for hematologic screening for diseases and syndromes, utilizing quantitative phase imaging (QPI) and machine learning. We aim to establish an efficient blood examination framework that does not suffer from the drawbacks of conventional blood assays, which are incapable of profiling single cells or require labeling procedures. Our method involves the synergistic employment of QPI and machine learning. The high-dimensional refractive index information arising from the QPI-based profiling of single red blood cells is processed to screen for diseases and syndromes using machine learning...
Source: Biosensors and Bioelectronics - Category: Biotechnology Source Type: research
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Source: Sensors and Actuators B: Chemical - Category: Chemistry Source Type: research
In this study, a cheaper, rapid-prototyping, high-sensitivity angle-scanning surface plasmon resonance (SPR) was developed by fused deposition modeling (FDM) 3D printing technology for HbA1c detection. The sensor chip is based on an aptamer that has high affinity and high specificity to HbA1c. The results showed that this HbA1c-specific aptamer had high specificity for HbA1c, and the calculated KD was 6.13 × 10-8 M. The linear detection response of HbA1c appeared in the range of 18 to 147 nM, with a detection limit of 1 nM. This SPR HbA1c detection system could be a promising platform for ...
Source: Sensors and Actuators B: Chemical - Category: Chemistry Source Type: research
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Source: Sensors and Actuators B: Chemical - Category: Chemistry Source Type: research
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Source: Polymer Degradation and Stability - Category: Chemistry Source Type: research
Publication date: Available online 21 September 2018Source: Journal of Environmental Chemical EngineeringAuthor(s): Martha Purnachander Rao, Vinoth Kumar Ponnusamy, Jerry J Wu, Abdullah M. Asiri, Sambandam AnandanAbstractMorphologically controlled hierarchical CuO microstructures were fabricated via facile ultrasound-assisted method and well characterized using several techniques in detail. Morphologies such as chrysanthemum flower, pillow, cotton, rose flowers were obtained upon using different organic solvents whereas for pure water as solvent no such morphology respectively. Reason for such structures may be related to ...
Source: Journal of Environmental Chemical Engineering - Category: Chemistry Source Type: research
Publication date: 25 January 2019Source: Journal of Alloys and Compounds, Volume 772Author(s): Erick Gastellóu, Crisoforo Morales, Rafael García, Godofredo García, Gustavo A. Hirata, Ana M. Herrera, Reina Galeazzi, Enrique Rosendo, Tomas Díaz, Elías M. TejedaAbstractMagnesium doped GaN powders were obtained by nitridation of a Ga-Mg liquid metallic solution in a chemical vapor deposition system during two hours at 1000 °C. Photoluminescence spectrum, obtained at room temperature of the Mg doped GaN powders, showed an emission band with a maximum energy of 2.9 eV (427.5 nm), whic...
Source: Journal of Alloys and Compounds - Category: Chemistry Source Type: research
Publication date: 25 January 2019Source: Journal of Alloys and Compounds, Volume 772Author(s): L. Barka, M. Balat-Pichelin, J.-L. Sans, E. BêcheAbstractTo mitigate debris in orbit and to avoid dramatic collisions on Earth after atmospheric re-entry at the end of a spacecraft's life, spacecraft missions have to take into account the influence of the environment (air plasma, high temperature and low pressure) on spacecraft survivability. Therefore, oxidation in air plasma conditions was studied on Invar 36 alloy, which is frequently used for large satellite components, in order to obtain oxidation kinetic laws at high ...
Source: Journal of Alloys and Compounds - Category: Chemistry Source Type: research
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