In Japan, fine-needle aspiration (FNA) cytology is the most important diagnostic modality for triaging patients with thyroid nodules. A clinician (endocrinologist, endocrine surgeon, or head and neck surgeon) generally performs FNA cytology at the outpatient clinic, and ultrasound (US)-guided FNA is widespread because US is extremely common and most clinicians are familiar with it. Although alm...

BACKGROUND/AIMS We evaluated the performance, clinical role, and diagnostic accuracy of endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) in gastrointestinal intramural lesions. METHODS Procedural and pathologic data were reviewed from consecutive patients undergoing EUS-FNA for intramural lesions. Final diagnoses were determined by surgical histopathologic conformation and the di...

We review the utility of endoscopic ultrasound-guided fine needle aspiration (EUS-FNA), a rapid, safe, cost-effective, and accurate diagnostic modality for evaluating pancreatic tumors. EUS-FNA is currently used for the diagnosis and staging of pancreatic tumors. The sensitivity of EUS-FNA for pancreatic malignancy ranges from 75% to 94%, and its specificity approaches 100% in most studies. How...

The most common primary tumor of the liver is hepatocellular carcinoma (HCC), also known as hepatoma.1 There are several risk factors for developing hepatoma, such as chronic hepatitis B and C virus infection, cirrhosis, and carcinogens (ie, aflatoxin).2 The incidence of HCC, which is often a fatal disease, is on the rise in developed nations, including the United States. Over the past 3 decade...

Thyroid ultrasonography is mainly used for the detection and characterization of thyroid nodules. However, there some limitation since diagnostic performance remains highly subjective depends on radiologist experiences. Therefore, artificial intelligence (AI) was expected to improve ultrasound. To evaluate AI differentiating malignant benign nodules compare it with that an experienced a third-y...

BACKGROUND No study on ultrasound-guided fine-needle aspiration (US-FNA) for the diagnosis of retrojugular lymph node has been reported. The present study aimed to introduce US-FNA techniques for retrojugular lymph node and to evaluate their efficacy. METHODS Of the 788 patients who underwent US-FNA of the cervical lymph node, 41 patients underwent US-FNAs of retrojugular lymph node and were ...

The evaluation of a solitary pulmonary nodule (SPN) has changed over the years with increased access to percutaneous computerised tomography (CT) guided fine needle aspiration (FNA), where bronchoscopy is unhelpful. The aim of our study was to evaluate the sample adequacy, diagnostic and complication rate of CT-FNA of a SPN at our academic teaching hospital over an 18 month period. CT-FNA was p...

RATIONALE There is currently no consensus on the ideal method for obtaining deep tissue biopsy material of advanced gastric LP. EUS-FNA has potential as a useful diagnostic method. Thus, we report the case of a 46-year-old male with advanced gastric linitis plastica (LP) who was diagnosed using endoscopic ultrasound-guided fine needle aspiration (EUS-FNA). PATIENT CONCERNS The patient underwe...

Partially cystic thyroid nodules (PCTNs) are common on ultrasound (US). However, there are insufficient data on the prevalence of thyroid carcinoma among such nodules. The purpose of this study was thus to evaluate the prevalence and differentiation of partially cystic thyroid cancers in US-guided fine needle aspiration (FNA).A total of 1342 consecutive patients with 1360 thyroid nodules underw...

BACKGROUND Mediastinal lymph node staging (N-staging) is essential to optimize the treatment in non-small cell lung cancer (NSCLC). Transesophageal endoscopic ultrasonography-guided fine needle aspiration (EUS-FNA) has recently been introduced as a complementary method. However, in most reports, EUS-FNA has been performed in patients who have demonstrated enlarged lymph nodes (LNs) on CT findin...