Immunohistochemical "null" pattern of all four mismatch repair proteins in Lynch syndrome-associated small bowel adenocarcinoma: a case report and comprehensive genomic profiling.

Immunohistochemistry for mismatch repair (MMR) proteins is important for evaluating the molecular background of MMR-deficient tumors, including those with Lynch syndrome (LS). The four major MMR proteins function as heterodimers (MLH1/PMS2 and MSH2/MSH6), and usually only one of the MMR subsystems is impaired. However, rare cases of concurrent immunohistochemical loss of all four MMR proteins, termed "null" phenotype, have been reported.

Indocyanine green intravenous administration can more accurately identify the intersegmental plane than the inflation-deflation method in lung segmentectomy.

Background: Indocyanine green (ICG) intravenous administration (ICG-iv) has been described for detecting the intersegmental plane in lung segmentectomy. However, errors with preoperative planning and accuracy comparisons with alternative methodologies have not been fully validated.

Methods: This single-center retrospective study identified 138 patients with 140 lesions who underwent segmentectomy using the inflation-deflation (I-D) method or ICG-iv method.

Bilateral Multiple Chalazia After Adalimumab Therapy for Uveitis Associated With Generalized Pustular Psoriasis: A Case Report.

Adalimumab is a widely used tumor necrosis factor (TNF) inhibitor that is rarely associated with ophthalmic adverse events. Herein, we report a case of multiple bilateral chalazia that developed after adalimumab therapy. A 32-year-old woman was treated with adalimumab for uveitis associated with generalized pustular psoriasis, with coexisting psoriatic arthritis.

Observable score for bleeding after colorectal endoscopic mucosal resection.

Background: There is insufficient evidence regarding the management of hematochezia after colorectal endoscopic mucosal resection (EMR) without endoscopic hemostasis.

Objectives: The aim of this study was to develop an observable score for hematochezia after colorectal EMR.

Design: Retrospective study.

Concurrent Fulminant Myocarditis and Severe Rhabdomyolysis in COVID-19-related Multisystem Inflammatory Syndrome in Adults: A Case Report and Review of the Literature.

This case report describes a 47-year-old woman with coronavirus disease 2019 (COVID-19)-related multisystem inflammatory syndrome in adults (MIS-A), who presented with fulminant myocarditis and severe rhabdomyolysis. Despite the absence of severe respiratory symptoms, the patient showed remarkable myocardial and leg edema with significant systemic inflammation and elevated creatine kinase levels after the COVID-19 infection. The patient required venoarterial extracorporeal membrane oxygenation (VA-ECMO) and Impella CP for hemodynamic stabilization; however, she was successfully treated.

Clinical application of vein visualization apparatus AccuVein500 in breast cancer surgery: a case report.

Background: AccuVein can help visualize superficial veins and is generally used as an auxiliary device to identify patterns of veins that are difficult to locate for collecting blood and securing venous lines. Even when venous patterns are obscure via visual inspection and/or palpation, the clear projection/delineation of superficial veins using this apparatus facilitates safe venous puncture and helps secure venous lines. Therefore, this apparatus is widely used in clinical settings.

Association of Intratumoral Bacterial Abundance With Lung Cancer Prognosis in Chiba University Hospital Cohort.

The relationship between cancer prognosis and intratumoral microbiome has recently gained attention. Regarding lung cancer, most studies have focused on bacteria outside tumors, such as sputum or lavage fluid, with few examining intratumoral bacteria and their impact on prognosis. In this study, we extracted DNA from lung tumor samples of 507 patients undergoing surgery at Chiba University Hospital and quantified intratumoral bacterial abundance using bacteria-specific PCR primers.

A novel self-assembling peptide as new submucosal injection solution in endoscopic submucosal dissection.

Background: This study evaluates the effectiveness of PuraLift, a novel self-assembling peptide-based submucosal injection solution, in endoscopic submucosal dissection (ESD) procedures. We compared its performance to MucoUp in a variety of organ-spanning lesions (esophagus, stomach, and colon/rectum).

Methods: We included 40 consecutive ESD lesions from our hospital, with 19 treated using PuraLift and 21 using MucoUp.

Usefulness of Novel Image-Enhanced Endoscopy for Predicting Maintenance of Clinical Remission in Ulcerative Colitis.

Purpose: The performance of endoscopic evaluation of ulcerative colitis (UC) using conventional scoring, including Mayo endoscopic subscore (MES) and ulcerative colitis endoscopic index of severity (UCEIS), is not satisfactory. Recently, the usefulness of novel image-enhanced endoscopy (IEE) such as texture and color enhancement imaging (TXI) and red dichromatic imaging (RDI) has been reported in the endoscopic evaluation of UC. We evaluated the performance of IEEs in UC, particularly focusing on the correlation with MES and UCEIS, and prediction of relapse.

Immune evasion through mitochondrial transfer in the tumour microenvironment.

Cancer cells in the tumour microenvironment use various mechanisms to evade the immune system, particularly T cell attack. For example, metabolic reprogramming in the tumour microenvironment and mitochondrial dysfunction in tumour-infiltrating lymphocytes (TILs) impair antitumour immune responses. However, detailed mechanisms of such processes remain unclear.

Efficacy of Magnifying Texture and Color Enhancement Imaging With Indigo Carmine as an Alternative to Crystal Violet for Colorectal Tumors.

Background: Pit pattern diagnosis using crystal violet staining for colorectal tumors is useful for qualitative and depth diagnosis. However, due to its reported carcinogenic potential, the use of crystal violet has been restricted. This study was aimed at investigating the efficacy of texture and color enhancement imaging (TXI) magnification in pit pattern diagnosis.

pulmonary disease with organizing pneumonia: A case report and review of literature.

, a rapidly growing non-tuberculous mycobacterium, rarely causes pulmonary diseases. A patient was admitted to our hospital with a fever and cough. Chest radiography revealed consolidation in the right middle lung.

SMARCB1-deficient malignant neoplasm of the pancreas with heterogeneous morphologies that cannot be classified into existing histologic types.

A 50-year-old male with a pancreatic tail tumor underwent distal pancreatectomy. At 14 and 27 months after the primary surgery, metachronous liver metastases were identified and partial hepatectomies were performed for each. Pathologic findings of the primary pancreatic tumor were heterogeneous, but they essentially categorized into two components based on their cytologic features: (i) clear cell component and (ii) epithelioid cell component.

Shark Fin Sign in a Patient with Sepsis-induced Cardiomyopathy Associated with Retained Placenta: A Case Report and Review of the Literature.

Retained placenta can lead to septic shock; however, sepsis-induced cardiomyopathy (SICM) due to retained placenta has not been reported previously. This report presents a rare case of SICM following septic shock due to retained placenta after miscarriage in a 40-year-old woman, accompanied by the "shark fin sign" on an electrocardiogram, a pattern typically linked to myocardial ischemia. She experienced ventricular tachycardia and required venoarterial extracorporeal membrane oxygenation; however, she was successfully treated.

Franseen needle in endobronchial ultrasound-guided transbronchial needle aspiration: a phase II prospective study.

Background: Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) has been used to diagnose and stage lung cancer. Acquire™ Pulmonary and Expect™ Pulmonary dedicated EBUS-TBNA needles were introduced as the Franseen and Lancet needles, respectively. It is still unclear whether the Franseen or Lancet needles yield a higher quality specimen especially focusing on next-generation sequencing-based molecular testing.

Intensive triamcinolone acetonide injection regimen can highly prevent stricture after extensive esophageal endoscopic submucosal dissection.

Background: This study aimed to investigate the utility of intensive triamcinolone acetonide (TA) injections after extensive esophageal endoscopic submucosal dissection (ESD).

Methods: This retrospective study included 27 lesions in 27 consecutive patients who underwent ESD (ulcers encompassing ≥3/4 of the esophageal circumference) and received TA injections without oral steroid administration. Groups A and B included patients undergoing ESD with and without complete circumferential resection, respectively.

Keratin 6A Is Expressed at the Invasive Front and Enhances the Progression of Colorectal Cancer.

Keratins (KRTs) are intermediate filament proteins in epithelial cells, and they are important for cytoskeletal organization. KRT6A, classified as a type II KRT, is normally expressed in stratified squamous epithelium and squamous cell carcinomas. Little is known about the expression and role of KRT6A in adenocarcinomas.

Four-dimensional computed tomography is useful for detection of apical sparing of cardiac amyloidosis.

A 73-year-old male was admitted because of recurrent syncope. He was diagnosed with transient bradycardia caused by a 2:1 atrioventricular block, and he underwent cardiac computed tomography (CT) using 320 detector-row CT to screen for coronary artery disease. Significant coronary artery stenosis was not detected, but diffuse late iodinate enhancement was found on the epi-myocardium and endo-myocardium of the interventricular septum, and endo-myocardium of the anterior and lateral left ventricular (LV) myocardium (LVM) on CT.