The flexible fiberoptic bronchoscope is currently the standard tool for localization of radiographically occult carcinomas of the tracheobronchial tree. It allows direct inspection of proximal airways and can establish the location of most occult lung cancers. A small percentage of patients present with bronchoscopically as well as radiographically occult carcinoma, particularly challenging bec...

Occult breast cancer is a type of breast cancer without any symptoms on the breasts or any abnormalities upon radiologic examination such as mammography. In males, there are few cases of breast cancer, the rate of diagnosis of occult breast cancer is very low, and little is known about this disease. We experienced two cases of occult breast cancers manifesting as axillary lymph node metastasis ...

Abstract This article scrutinizes the history of “esoteric” and “occult” as comparative terms outlines a concrete methodology for their examination potential practical application, based on theoretical framework Global Religious History. My main argument is that are today de facto employed worldwide within beyond academia. Similar to case “religion,” they not result unilateral diffusion “Wester...

"Occult" or "hidden" caries refers to occlusal caries which is not diagnosed clinically because the occlusal surface appears ostensibly intact, and radiographs show radiolucencies in dentin. The prevalence of occult caries has been reported to range from 2.2% to over 50% of permanent molars. In spite of its relatively high prevalence, the etiology and pathogenesis of occult caries remain unclea...

INTRODUCTION Occult hepatitis B virus (HBV) is defined by the presence of HBV DNA in patient sera in the absence of HBsAg. Occult HBV has been associated with hepatocellular carcinoma, reactivation during immune suppression, and transmission to others. While the hepatitis B vaccine is very effective at preventing chronic HBV infection, recent studies indicate it is less effective at preventing ...

OBJECTIVE Previous studies have revealed inconsistent results regarding the association between occult hepatitis B virus (HBV) infection and chronic kidney disease (CKD). Therefore, we conducted a prospective cohort study to evaluate the association between occult HBV infection and CKD. METHODS A total of 4329 adults, aged 46.2 ± 13.7 years, without CKD at baseline were enrolled while undergo...

BACKGROUND Patients chosen for liver resection of colorectal liver metastases are a select group with minimal disease, favorable tumor biology and earlier presentation when compared to unresectable patients. Despite intense preoperative assessments, operative detection of occult unresectable disease is inevitable for a small group of patients. The aim of this study was to evaluate determinants ...

OBJECTIVES The indications for neck dissection concurrent with salvage laryngectomy in the clinically N0 setting remain unclear. Our goals were to determine the prevalence of occult nodal disease, analyze nodal disease distribution patterns, and identify predictors of occult nodal disease in a salvage laryngectomy cohort. STUDY DESIGN Case series with planned data collection. SETTING Tertia...

Occult hepatitis C infection is regarded as a new entity that should be considered when diagnosing patients with a liver disease of unknown origin. Using an ultrasensitive real-time PCR assay, we demonstrated that occult hepatitis C virus (HCV) infection cannot be found in peripheral blood mononuclear cells of patients with cryptogenic liver diseases, HCV--associated systemic vasculitis, or con...

Occult breast cancer is defined by the presence of axillary metastases without an identifiable primary breast tumor. Here, we report a rare case of a male occult breast cancer with dermatomyositis. We performed a modified radical mastectomy consisting of whole breast mastectomy and axillary lymph node dissection. Immunohistochemistry and fluorescent in situ hybridization analyses demonstrated a...