Malicious and Benign Webpages Dataset

Web Security is a challenging task amidst ever rising threats on the Internet. With billions of websites active on Internet, and hackers evolving newer techniques to trap web users, machine learning offers promising techniques to detect malicious websites. The dataset described in this manuscript is meant for such machine learning based analysis of malicious and benign webpages. The data has been collected from Internet using a specialized focused web crawler named MalCrawler [1]. The dataset comprises of various extracted attributes, and also raw webpage content including JavaScript code. It supports both supervised and unsupervised learning. For supervised learning, class labels for malicious and benign webpages have been added to the dataset using the Google Safe Browsing API.1 The most relevant attributes within the scope have already been extracted and included in this dataset. However, the raw web content, including JavaScript code included in this dataset supports further attribute extraction, if so desired. Also, this raw content and code can be used as unstructured data input for text-based analytics. This dataset consists of data from approximately 1.5 million webpages, which makes it suitable for deep learning algorithms. This article also provides code snippets used for data extraction and its analysis.

DEVELOPMENT OF OPTICALLY STIMULATED LUMINESCENCE BADGE READER SYSTEM FOR INDIVIDUAL MONITORING OF RADIATION WORKERS

A new Optically Stimulated Luminescence Badge Reader (OSBARE-1) system has been designed and developed for application in the individual monitoring dosimetry. This badge reader system utilizes the 470-nm light of a blue LED for CW-OSL readout with the help of PMT photon counting module. The developed reader system can process four element 24 OSLD cards within 25 min. These four-element OSLD card consists of the Teflon embedded indigenously developed dosimetric grade α-Al2O3:C phosphor. The minimum measurable dose (MMD) was found to be ~26 μGy for these OSLD cards with reproducibility of ~1.12%. The various operational parameters such as variation in the dark counts, OSL scattering background counts and reproducibility have been studied in detailed for this reader system. The dosimetric studies performed on this developed reader system found to have a great potential for the OSLD-based large-scale personnel monitoring program for the radiation workers.

Indian agriculture, air pollution, and public health in the age of COVID

Emerging evidence supports the intuitive link between chronic health conditions associated with air pollution and the vulnerability of individuals and communities to COVID-19. Poor air quality already imposes a highly significant public health burden in Northwest India, with pollution levels spiking to hazardous levels in November and early December when rice crop residues are burned. The urgency of curtailing the COVID-19 pandemic and mitigating a potential resurgence later in the year provides even more justification for accelerating efforts to dramatically reduce open agricultural burning in India.

Agricultural labor, COVID-19, and potential implications for food security and air quality in the breadbasket of India

To contain the COVID-19 pandemic, India imposed a national lockdown at the end of March 2020, a decision that resulted in a massive reverse migration as many workers across economic sectors returned to their home regions. Migrants provide the foundations of the agricultural workforce in the 'breadbasket' states of Punjab and Haryana in Northwest India.There are mounting concerns that near and potentially longer-term reductions in labor availability may jeopardize agricultural production and consequently national food security. The timing of rice transplanting at the beginning of the summer monsoon season has a cascading influence on productivity of the entire rice-wheat cropping system. To assess the potential for COVID-related reductions in the agriculture workforce to disrupt production of the dominant rice-wheat cropping pattern in these states, we use a spatial ex ante modelling framework to evaluate four scenarios representing a range of plausible labor constraints on the timing of rice transplanting. Averaged over both states, results suggest that rice productivity losses under all delay scenarios would be low as compare to those for wheat, with total system productivity loss estimates ranging from 9%, to 21%, equivalent to economic losses of USD $674 m to $1.48 billion. Late rice transplanting and harvesting can also aggravate winter air pollution with concomitant health risks. Technological options such as direct seeded rice, staggered nursery transplanting, and crop diversification away from rice can help address these challenges but require new approaches to policy and incentives for change.

A case series of unusual presentations of Burkitt's lymphoma

Context

Burkitt's lymphoma (BL) is one of the fastest growing malignancies. It is the most common subtype of Non-Hodgkin's lymphoma in childhood. It has three major subtypes - endemic, sporadic, and immunodeficiency-associated types.

Aims

This study aims to study the clinicomorphologic features of this disease entity and to find optimal imaging technique for such cases.

Setting and Design

A retrospective observational study in a tertiary care center of academic and research potential.

Subjects and Methods

We are presenting three unusual cases of sporadic type of BL who presented initially as localized right iliac fossa mass mimicking as acute appendicitis. Initially, localized presentation progressed to diffuse abdominal mass lesions causing intestinal obstruction.

Results

These cases had emphasized the importance of accurate diagnosis by the ultrasonography (USG) or computed tomography (CT) scan for early diagnosis so as to manage such cases simply by early appropriate medical treatment.

Conclusion

In this article, we will discuss the clinical and imaging features of BL with the role of USG, CT scan and positron emission tomography/CT in the abdominopelvic imaging of pediatric patients.

A novel leaf rust resistance gene introgressed from Aegilops markgrafii maps on chromosome arm 2AS of wheat

A novel leaf rust resistance gene, LrM, introgressed from Aegilops markgrafii and mapped on chromosome 2AS using SSR- and SNP-based PCR markers will aid in broadening the genetic base of rust resistance in wheat. A new leaf rust resistance gene tentatively named LrM was introgressed from the diploid non-progenitor species Ae. markgrafii (2n = 2x = 14, genome CC) into common wheat using the nulli-5B mechanism. The introgression line ER9-700 showed a high degree of resistance against a wide spectrum of Puccinia triticina pathotypes. Genetic analysis was performed using the F₁, F₂, F_2:3 and BC₁F₁ generations derived from the cross ER9-700/Agra Local. The results showed a single dominant gene for leaf rust resistance. The resistance gene LrM was mapped on chromosome arm 2AS using SSR- and SNP-based PCR markers. Preliminary mapping with SSR markers in the F_2:3 population from the cross ER9-700/Agra Local identified two SSR markers flanking the LrM. SNPs were identified in the genomic region flanked by SSR markers, and SNP-based PCR markers were developed to construct the final map. Three SNP-based PCR markers co-segregated and mapped closest to the resistance gene at a distance of 2 cM. The gene LrM was distinguished from all the other genes designated and mapped on chromosome arm 2AS by molecular markers and rust reaction. All five markers used in the mapping amplified identical alleles in the donor Ae. markgrafii accession and introgression line ER9-700. The chromosomal location and rust reaction suggest that LrM is a novel leaf rust resistance gene that may be useful in broadening the genetic base of leaf rust resistance in wheat.

Superior Vena Cava Syndrome due to Pulmonary Tuberculosis: A Rare Presentation

Superior vena cava syndrome (SVCS) is a disease entity with notable signs and symptoms that cannot go unnoticed by clinicians and taken as a clear sign of infiltrative mediastinal involvement, usually caused by neoplasms in this location, however other causes of benign origin can also present with these symptoms. This unusual case highlights the fact that tuberculosis should also be kept in mind as a differential diagnosis in patients presenting with symptoms of SVC obstruction. A timely diagnosis and appropriate treatment leads to cure.

Clinical Profile of Patients Presenting with Gallstone Disease in University Hospital of Nepal

Background Gallstone disease is one of the most common surgical problem throughout the world. The rise in gallstone disease burden and its wide spectrum of non-specific presentation makes the disease more challenging. Objective To know the various modes of presentation, socio-demographic details of the patients with gallstone disease, any associated factors and its treatment options. Method This is a prospective descriptive study in the patients presenting to Dhulikhel Hospital Kathmandu University Hospital diagnosed with gallstone during May 2018 to April 2020. After receiving ethical clearance from institutional Review committee, the informed consent was taken from all patient involved in the study. The presence of gallstone was confirmed by abdominal ultrasonography (USG). This study included total of 202 patients with gallstone disease. Result A total of 202 individuals with gallstone were included in the study; 48 males (24%) and 154 females (76%). The disease condition was common in age group 31-40 years (26.24%). Majority of the study population consumed mixed diet (92.57%). Out of 202 patients; 52 patients (25.74%) were overweight. In this study series 185 patients (91.58%) were symptomatic. Pain abdomen was one of the commonest symptoms (97.84%) followed by Nausea (28.11%), Dyspepsia (28.11%), Vomiting (18.38%), Fever (1.62) and Jaundice (1.08%). All cases were planned for laparoscopic cholecystectomy however 4 cases had to be converted to open surgery for completion. Conclusion Gallstone disease is a common surgical problem in Female population that presents most commonly with pain abdomen. Laparoscopic cholecystectomy can be easily performed in all cases of gallstone disease.

Evaluation of implantable Doppler probe continuous monitoring of hepatic artery anastomosis after liver transplantation

Background

Thrombosis of hepatic artery anastomosis (HAT) after liver transplantation is a catastrophic and dreaded complication. Early identification of HAT can salvage the situation. To monitor the anastomosis, conventional daily transcutaneous Doppler is performed. However, it has disadvantages of being noncontinuous, operator-dependent and technically difficult. Implantable Doppler probes wrapped around the anastomosed vessel giving continuous signal may be an important tool; however, very few studies are performed to study its efficacy after intra-abdominal vascular anastomosis, and its role is not clearly established.

Methods

Patients who underwent deceased donor liver transplant surgery were part of the study. On hepatic arterial anastomosis, implantable Doppler probe was fixed for monitoring. Conventional daily transcutaneous Doppler was also performed and the results were compared.

Results

A total of 40 hepatic arterial anastomoses were studied. The incidence of HAT was 10.53%. For the implantable Doppler probe monitoring, sensitivity and negative predictive value was 100%, whereas specificity was 94.44% and positive predictive value was 66.66% with an overall accuracy of 95%. A mean of 10 h of lead time was gained by implantable Doppler probe monitoring.

Conclusion

Our study showed that there was high sensitivity and negative predictive value of implantable Doppler probe monitoring system, which makes it ideal for post-operative vascular anastomoses surveillance monitoring; however, abnormal positive finding on implantable Doppler probe monitoring needs to be confirmed by conventional transcutaneous Doppler. The implantable Doppler probe monitoring, because of its round the clock and continuous nature gives us a good lead time in identifying vascular complication, which translates into graft salvage and reduction in morbidity and mortality.

Allelic sequence variation in the Sub1A, Sub1B and Sub1C genes among diverse rice cultivars and its association with submergence tolerance

Erratic rainfall leading to flash flooding causes huge yield losses in lowland rice. The traditional varieties and landraces of rice possess variable levels of tolerance to submergence stress, but gene discovery and utilization of these resources has been limited to the Sub1A-1 allele from variety FR13A. Therefore, we analysed the allelic sequence variation in three Sub1 genes in a panel of 179 rice genotypes and its association with submergence tolerance. Population structure and diversity analysis based on a 36-plex genome wide genic-SNP assay grouped these genotypes into two major categories representing Indica and Japonica cultivar groups with further sub-groupings into Indica, Aus, Deepwater and Aromatic-Japonica cultivars. Targetted re-sequencing of the Sub1A, Sub1B and Sub1C genes identfied 7, 7 and 38 SNPs making 8, 9 and 67 SNP haplotypes, respectively. Haplotype networks and phylogenic analysis revealed evolution of Sub1B and Sub1A genes by tandem duplication and divergence of the ancestral Sub1C gene in that order. The alleles of Sub1 genes in tolerant reference variety FR13A seem to have evolved most recently. However, no consistent association could be found between the Sub1 allelic variation and submergence tolerance probably due to low minor allele frequencies and presence of exceptions to the known Sub1A-1 association in the genotype panel. We identified 18 cultivars with non-Sub1A-1 source of submergence tolerance which after further mapping and validation in bi-parental populations will be useful for development of superior flood tolerant rice cultivars.

Types of Renal Stones and its Variation with Age and Gender in a University Hospital of Nepal

Background Types of renal stones have profoundly changed in the last half-century, parallel to the change in lifestyle and dietary habit, with an increase of calcium stones. Among many lithogenic factors age and gender are considered to be associated with the types of renal stones. Studies evaluating the influence of age and gender on the distribution of the types of urinary calculi are scarce in Nepal. Objective To explore the influence of age and gender on different types of urolithiasis. Method This is a single center prospective study encompassing urolithiasis during a study period of 18 months. All the stone retrieved from the patients after surgery were sent for biochemical analysis of the stone. The result was then compared with the age and gender of the study population. Result Calculi from a total of 107 patients wereanalyzed (62 from malesand 45 from females). Mixed stones consisting of calcium oxalate and calcium phosphate werethe predominant constituent in 74.16% of stones, followed by uric acid, struvite and cystine stones. We found predominance of Calcium stones in males(47.66%) vs 36.44% in females and predominance of struvite stonesin females (7.47%) vs 3.73% in males. Age group of 21-40 years has the main burden of stone. Conclusion Being aware and having better knowledge of risk factors, composition and correlation with age and gender can provide personalized guidance to prevention and avoid recurrence of urolithiasis.

Recovery Pattern in Different Surgical Approaches on Thoracic Enhanced Recovery based Fourteen-Step Protocol in Patients Undergoing Cardio-thoracic Surgery at University Hospital of Nepal

Background Cardio-thoracic surgery involves open and minimally invasive techniques. Enhanced recovery after surgery is used for early recovery from surgery. Enhanced recovery after surgery decreases hospital stay duration. Patients undergoing Enhanced recovery after surgery after video assisted thoracic surgery use less pain killers and have less hospital cost. There has not been any study on outcomes on patient who follow physiotherapy protocol designed in our setting. Objective To find the physiotherapy outcomes in patients undergoing thoracic enhanced recovery after surgery (T-ERAS) based 14 step protocol locally designed at Dhulikhel Hospital, Kathmandu University Hospital (DH, KUH). Method This is a retrospective cross sectional observational study. All the cases who underwent cardiothoracic surgery were classified based on the approach of chest surgery performed into groups Sternotomy, Thoracotomy and Video Assisted Thoracic Surgery (VATS) groups. Patients were advised for Thoracic Enhanced recovery after surgery based on the protocol that has been devised at Dhulikhel Hospital. The recovery of patients based on activities they could perform was noted and analyzed. Result Both ICU stay and hospital stay in number of days were highest in thoracotomy (6.04 days) group while that was lowest in video assisted thoracic surgery group (1.67 days). There is a similar recovery until step 5, i.e. 2 days and rapid progression in further steps in video assisted thoracic surgery group while it is much slower in both sternotomy and thoracotomy groups. Conclusion Postoperative mobilization and physiotherapy enhance early healing and decrease hospital stay. Mean hospital stay and ICU stay were shorter for video assisted thoracic surgery cases compared to Thoracotomy and Sternotomy groups and the mean days to achieve different steps varied within the protocol between groups compared.

Enhanced magnetic and room temperature intrinsic magnetodielectric effect in Mn modified Ba2Mg2Fe12O22 Y-type hexaferrite

We have reported a systematic investigation on structural, magnetic, magnetodielectric and magnetoimpedance characteristics of Y-type Ba₂Mg₂(Fe_1-x Mn _x )₁₂O₂₂ (0  ⩽  x  ⩽  0.12) hexaferrite synthesized by solid-state reaction route. Rietveld refinement of x-ray diffraction pattern confirms the phase purity of all the samples with rhombohedral crystal structure. The Mn dopant modulates not only superexchange angle near to the boundary of magnetic blocks but also magnetic transition temperature. Temperature-dependent magnetization data suggests that due to Mn doping at Fe sites, ferrimagnetic to proper screw transition temperature (T _II) increases from 190 K to 208 K, while there is a decrease in proper screw to longitudinal conical spin transition temperature (T _I) from 35 K to 25 K. We observe remarkable decrease in the magnetic field from 20 kOe to 12 kOe to produce intermediate spin ordering from ferrimagnetic ordering which can be understood because of modification of superexchange angle due to Mn doping. The value of loss tangent decreases with increasing doping concentration at 300K, i.e. ~60% and 180% in BMFM4 (x  =  0.04) and BMFM8 (x  =  0.08) respectively as compared to BMF, suggesting the evolution of intrinsic feature in the doped samples. Magnetodielectric (MD) effect shows that in the low-frequency regime, the robust MD effect is because of Maxwell-Wagner interfacial polarization, whereas in the high-frequency regime intrinsic effect dominates. Further, magnetoimpedance measurement confirms the presence of substantial intrinsic MD% (~6%) at 1.3 T applied field at 300 K for 4% Mn-doped sample. Finally, the nature and strength of magnetoelectric coupling in BMFM4 and BMFM8 samples at 300 K is found to be biquadratic (P ² M ²) and maximum strength of coupling is 3.09  ×  10^-4 emu² g^-2 and 2.34  ×  10^-4 emu² g^-2, respectively.

Genetic and genomic approaches to address rapid rancidity of rice bran

Rice bran is an invaluable by-product of paddy processing industry. It is rich in minerals, protein, lipids, and crude fiber. In addition, it also possesses compounds with anti-oxidant, anti-allergic, anti-diabetic, and anti-cancer properties. It forms a basis for the extraction of rice bran oil and preparation of various functional foods with health benefits and potential to prevent chronic health issues. Nevertheless, the rapid deterioration of bran upon storage acts as a major limitation in exploiting the full potential of rice bran. In this review, we have discussed three strategies to address rapid rancidity of rice bran and enhance its shelf life and storability vis-a-vis emphasizing the importance of rice bran in terms of its nutritional composition. One strategy is through exploitation of the null mutations in the genes governing lipases and lipoxygenases leading to nonfunctional enzymes (enzyme deficient approach), another strategy is through reducing the PUFA content that is more prone to oxidation (substrate deficient approach) and a third strategy is through enhancing the antioxidant content that effectively terminate the lipid peroxidation by donating the hydrogen atom.

Effects of a combination of xylanase, amylase and protease, and probiotics on major nutrients including amino acids and non-starch polysaccharides utilization in broilers fed different level of fibers

This study evaluated the effects of a combination of xylanase, amylase, and protease (XAP), with probiotics (3 Bacillus spp.) supplementation on apparent ileal digestibility (AID) and apparent total tract digestibility (ATTD) of nutrients in Cobb 500 broilers from 0 to 21 d. A completely randomized 2 × 4 factorial design (2 levels of fiber; 4 types of supplements) with 8 replicate cages (6 birds/cage) was used. Each low and high-fiber diet contained 500 FTU/kg Buttiauxella sp. phytase and was supplemented with: (a) none (control), (b) XAP (2,000 U xylanase + 200 U amylase + 4,000 U protease/kg diet), (c) probiotics (75,000 CFU/g of Bacillus spp.), or (d) XAP + probiotics. High fiber decreased (P < 0.05) nitrogen-corrected apparent metabolizable energy (AMEn), AID of all amino acids (AA), AID and ATTD of dry matter (DM), crude protein (CP), starch, and gross energy (GE). High fiber increased (P < 0.01) the flow of total non-starch polysaccharides (NSP) in both ileum and total tract. The XAP + probiotics increased (P < 0.01) AMEn as well as AID and ATTD of DM, CP, GE, starch, while alone, XAP yielded similar improvement except for DM compared with control. The supplemental XAP alone improved (P < 0.01) the digestibility of most of the AAs compared with control. Moreover, XAP + probiotics increased (P < 0.05) AID of all AA except arginine and serine compared with control. A fiber × supplements interaction (P < 0.05) was found for AID of histidine and threonine, and their digestibility in high-fiber diet was improved to a level comparable to low-fiber diet by XAP + probiotics. The flow of NSP in XAP group was 5 to 6% lower than in control while NSP flow in XAP + probiotic group was further 4% lower than that of XAP group (P < 0.01). The results infer that the combination of XAP and probiotics can effectively optimize the nutrient digestibility in broilers fed both low and high-fiber diets.

Outcome of Uretero Renoscopic Lithotripsy (URSL) with Holmium LASER Vs Pneumatic Lithotripter for Lower Ureteric Stones, Experience from University Hospital of Nepal

Background There are various methods of endoluminal ureteral stone fragmentation. Among various modalities Laser lithotripsy and Pneumatic lithotripsy are commonly used and have shown comparable outcomes. Objective To compare the efficacy and outcome of laser and pneumatic lithotripsy in a patient with lower ureteric calculi. The comparison will be done in stone free rate, migration of stone and complication of the procedure. Method This is a prospective comparative study in a cohort of patients at University Hospital with Lower Ureteric stone. Ninety patients were randomized in to two groups (Laser Lithotripsy Vs Pneumatic Lithotripsy) during the study period. The purpose of this study was to measure the immediate stone free rate, intra-operative complications, mean operative time, post-operative complication and if any stone retention after six weeks follow up. Result Both the groups were similar in Age and Gender. Immediate stone free rate was slightly higher in Laser lithotripsy group (97.77%) in comparison to Pneumatic lithotripter group (84.44%) with p=0.507 which is not statistically significant. There was statistical difference in terms of stone migration rate, mean operation time in favor of Laser Lithotripsy group (p<0.01, in both parameters). There were no immediate complications in both the group however there were three cases of short segment ureteric strictures (6.66%) in case of Pneumatic lithotripsy on six weeks follow up which was managed conservatively. Conclusion Both LASER lithotripter and Pneumatic lithotripter are equally efficacious modality of endoluminal URSL in lower ureteric stone with similar Stone Free Rate. Laser lithotripsy showed lower frequency of stone migration and had shorter procedure time.

Open Surgical Management of Abdominal Aortic Aneurysm at a Community Based University Hospital in Nepal

Aortic aneurysms are abnormal dilatation of aorta. The risk factors include male sex, age > 65, smoking, coronary artery disease and hypertension. Here we report a case of infra-renal abdominal aortic aneurysm (AAA) of diameter 6 cm. The patient sucessfully underwent aorto-biiliac bypass surgery using Dacron Y graft. During abdominal aortic aneurysm surgery anesthetic challenge is also of paramount importance and should be considered.

Management and design of biogas digesters: A non-calibrated heat transfer model

A thermal balance modeling framework is developed, based on heat transfer-resistance networks. The heat transfer model accounts for effects of digester- design, location and operation, including effects of solar irradiance, external heating and ambient climate. We demonstrate extendibility of the framework by using the model in dynamic simulations of substrate temperature for digesters comprising two very different designs. Digester designs modeled include fixed-dome, buried, uninsulated and unheated household digesters in Hanoi, Vietnam, and an industrial-scale anaerobic digester located at a wastewater treatment plant in Esbjerg, Denmark. The modeled temperature profiles were evaluated against measured substrate temperatures over long periods, from 7 months and up. For the two Hanoi digesters, root-mean-square-error were 1.43 °C and 0.92 °C, with Nash-Sutcliffe model efficiency coefficients (NS-C) of 0.87 and 0.93 respectively. For the industrial digester in Esbjerg root-mean-square-error was 0.48 °C with an NS-C of 0.94. The model was not calibrated prior simulation, suggesting good predictive performance.

Sentinel Lymph Node Biopsy in Colon Cancer: an Institutional Experience

Lymph node staging is a major prognostic factor in colorectal cancer and remains to be the most important criterion for selecting patients for adjuvant therapy. The standard approach for lymph node evaluation is based on manual dissection and histological evaluation of HE-stained slides. For stage III disease (node positive), adjuvant chemotherapy increases the survival rate, while in node-negative stage II disease, in most cases, the chemotherapy is contraindicated due to increased morbidity without real benefit. Up to 30% of patients with node-negative colon cancer staged by standard pathologic techniques ultimately suffer disease recurrence and tumour-related mortality following potentially curative primary resection. Variations in outcome among patients with node-negative early-stage disease may reflect inadequate nodal resection and inaccuracies of pathologic staging. Hence, an accurate pN stage becomes essential. It is seen that classic pathological exam sometimes fails to identify lymph node micrometastases or isolated tumour cells, which might explain local or distant relapses in stage II patients. Sentinel lymph node study has the potential to detect micrometastases and lead to upstaging the disease which is crucial for planning adjuvant therapy and follow-up in these patients. In our study, we carried out SLNB in 40 clinically stage II patients operated for colon cancer. We used peritumoural injection of dye at the time of surgery to detect SLN(s) and analysed them using both microsectioning and immunohistochemical (IHC) staining. Our results show that SLNB can improve the accuracy of pTNM staging.

A case of thymoma in myasthenia gravis: Successful outcome after thymectomy

INTRODUCTION

Thymic abnormalities occur as hyperplasia and thymoma. Myasthenia gravis is commonly present in thymoma. Thymectomy possesses risk due to anatomical proximity with vital thoracic structures and myasthenia crisis.

PRESENTATION OF CASE

Forty five years female with complaints of difficulty swallowing and weakness of upper limb muscles upon investigation showed mass in mediastinum and antibody test for myasthenia gravis positive. Medical management was done for a month followed by thymectomy. There were no intra and postoperative complications. Medical management was stopped one month after surgery and she is symptom free.

DISCUSSION

Thymectomy is the standard of care where median sternotomy is the mainstay approach to surgery. Various other surgical approaches and complications revolving around surgery has been discussed.

CONCLUSION

Surgical removal of thymoma cured myasthenia gravis in our case. We focused on proper preoperative optimization of myasthenia gravis symptoms before thymectomy.