© The Korean BioChip Society and Springer 2020.BACKGROUND Isolated tuberculosis of the gallbladder is extremely rare due to its intrinsic resistance to tuberculous infections. There are reports of gallbladder tuberculosis mimicking cholecystitis or malignancy. However, these presentations were chronic. The diagnosis of gallbladder tuberculosis warrants the need for investigation of additional sites of inoculation and contact tracing of all tuberculosis contacts. Gallbladder tuberculosis is a rare entity but should be suspected in patients from endemic regions with risk factors such as underlying immunosuppression or history of tuberculosis. CASE SUMMARY We present a case of gallbladder tuberculosis presenting as acute cholecystitis. HSP990 ic50 A 44-year-old Filipino lady presented with a 11-d history of right hypochondrium and epigastric pain which worsened after meals with no significant past medical history. She underwent laparoscopic cholecystectomy on the presumptive diagnosis of acute cholecystitis and diagnosed as gallbladder tuberculosis after histopathological examination. The patient did not have features of pulmonary or systemic tuberculosis nor was she immunocompromised. She recovered uneventfully. She was subsequently discharged and followed-up at a hospital in her home country due to financial and social reasons. CONCLUSION Clinicians should have a high index of suspicion for patients in endemic regions presenting with cholecystitis. ©The Author(s) 2020. Published by Baishideng Publishing Group Inc. All rights reserved.BACKGROUND Secondary malignancies of the thyroid gland are a rare finding in clinical practice. In addition, colorectal metastasis to the thyroid (CMT) is even more infrequently diagnosed. The source of the primary tumor follows demographic and ethnic patterns, which reflects the most prevalent malignancies in the different populations. Colorectal cancer is one of the most common types of cancer worldwide; nevertheless, CMT is infrequently diagnosed. Most of them are identified during the follow-up of gastrointestinal primary malignancies. Due to the improvement of image techniques, oncological treatment, and follow-up, survival and consequent diagnosis of metastatic disease are more frequent. Those facts make this entity a diagnostic and therapeutic challenge, due to the lack of information and the difficulties performing clinical trials and research. CASE SUMMARY Here, we present a case report of a patient diagnosed with CMT of adenocarcinoma of the rectum evidenced during follow-up, 4 years after neoadjuvant chemoradiotherapy, who had subsequent curative surgical treatment of the primary tumor and inter-current lung bilateral metastases. CONCLUSION Thyroid metastases of extra-thyroid origin are an uncommon finding, even rarer in cases of CMT. The diagnostic process, as well as survival of oncologic patients is improving, and consequently the number of metastases to the thyroid gland is increasing. ©The Author(s) 2020. Published by Baishideng Publishing Group Inc. All rights reserved.BACKGROUND Acute esophageal necrosis (AEN) is a rare entity with multifactorial etiology, usually presenting with signs of upper gastrointestinal bleeding. AIM To systematically review all available data on demographics, clinical features, outcomes and management of this medical condition. METHODS A systematic literature search was performed with respect to the PRISMA statement (end-of-search date October 24, 2018). Data on the study design, interventions, participants and outcomes were extracted by two independent reviewers. RESULTS Seventy-nine studies were included in this review. Overall, 114 patients with AEN were identified, of whom 83 were males and 31 females. Mean patient age was 62.1 ± 16.1. The most common presenting symptoms were melena, hematemesis or other manifestations of gastric bleeding (85%). The lower esophagus was most commonly involved (92.9%). The most widely implemented treatment modality was conservative treatment (75.4%), while surgical or endoscopic intervention was required in 24.6ng Publishing Group Inc. All rights reserved.BACKGROUND Laparoscopic cholecystectomy (LC) is a minimally invasive procedure, often performed by surgical residents (SRs). Fluorescence cholangiography (FC) enables real-time identification of biliary anatomy. AIM To investigate the benefit of FC for enhancing SRs' identification skills. METHODS Prospective data was collected from January 2018 to June 2018 at our hospital. The study cohorts were the SRs (study group, n = 15) and the surgical staff (SS; control group, n = 9). Participants were assigned to watch videos of LCs with FC from five different patients who had gallbladder disease, and identify structures in the video clips (including cystic duct, common bile duct, common hepatic duct, and cystic artery), first without FC, and then with FC. RESULTS In the without-FC phase, the overall misidentification rate by SRs (21.7%) was greater than that of the SS (11.8%; P = 0.018), However, in the FC phase, the two groups did not significantly differ in misidentification rates (23.3% vs 23.3%, P = 0.99). Paired-structure analysis of the without-FC and with-FC phases for the SR group found a significantly higher misidentification rate in the without-FC phase than the with-FC phase (21.9% vs 10.9%; P less then 0.01). However, misidentification rates in the with-FC phase did not significantly differ between SRs and SS. CONCLUSION FC enhanced identification skills of inexperienced surgeons during LC compared with conventional training. Combined with simulation-based video training, FC is a promising tool for enhancing technical and decision skills of trainees and inexperienced surgeons. ©The Author(s) 2020. Published by Baishideng Publishing Group Inc. All rights reserved.The staging and treatment of intermediate hepatocellular carcinoma (HCC) remains controversial. According to the recommendations of Barcelona Clinic Liver Cancer staging system, patients with intermediate HCC are candidates for transcatheter arterial chemoembolization. However, not all patients with intermediate HCC benefit from transcatheter arterial chemoembolization. Therefore, it is meaningful to propose a novel staging system of intermediate HCC in order to allocate different treatments for different subgroups. Bolondi et al proposed the first subclassification system of intermediate HCC. Subsequently, investigators performed studies to validate the feasibility of Bolondi' s criteria and proposed several novel staging systems. The present study reviewed the literatures and provided a general overview of the evolution and current status of the subclassification of intermediate HCC. We propose to expand the indication of liver resection and add radical treatments as the first option of the treatment for patients with intermediate HCC.