To evaluate whether artificial intelligence (AI) for detecting breast cancer on mammography can improve the performance and time efficiency of radiologists reading mammograms.A commercial deep learning-based software was validated using external data collected from 200 patients, 100 each with without (40 benign lesions 60 lesions) one hospital. Ten readers, including five specialist (BSRs) general (GRs), assessed all images a seven-point scale to rate likelihood malignancy in two sessions,...

Background: The objective of this study was to compare the postoperative neck pain and discomfort, swallowing difficulty, voice change after conventional open thyroidectomy (COT), endoscopic (ET), or robotic (RT) performed by a single surgeon. Methods: From January 2013 December 2017, 254 patients underwent COT, ET, RT surgeon completed symptom survey conducted in outpatient clinic three nurses. collected information on change. Results: Of patients, 169 32 53 RT. mean age groups 50.1, 44.5,...

The ultrasonographic characteristics and difference for various subtypes of papillary thyroid carcinoma (PTC) are still unclear. aim this study was to compare the features PTC according its subtype in patients undergoing surgery.In total, 140 who underwent preoperative ultrasonography (US) surgery between January 2016 December were included. Korean Thyroid Imaging Reporting Data System (K-TIRADS) category each nodule retrospectively evaluated by a single radiologist, differences...

Hemangioblastoma is a benign and highly vascular tumor. Complete surgical resection of tumor such as hemangioblastoma may be challenging due to excessive bleeding. Preoperative embolization these lesions decrease the intraoperative blood loss facilitate excision. We report three cases cerebellar hemangioblastomas that were embolized using Onyx.

Background parenchymal enhancement (BPE) on dynamic contrast‐enhanced (DCE)‐MRI has been associated with breast cancer risk, both based qualitative and quantitative assessments. Purpose To investigate whether BPE of the contralateral preoperative DCE‐MRI is therapy outcome in ER‐positive, HER2‐negative, node‐negative invasive cancer. Study Type Retrospective. Population In all, 289 patients unilateral larger than 5 mm. Field Strength/Sequence 3T, T 1 ‐weighted DCE sequence. Assessment was...

Purpose To report angiographic and clinical results of endovascular treatment in 45 intracranial vertebral artery dissecting aneurysms (VADAs). Materials Methods From July 2002 to September 2013, a total 42 patients with VADAs received treatment. Endovascular consisted internal trapping detachable coils, stent-assisted coiling, stenting only. Immediate follow-up findings outcome were retrospectively reviewed. Results There 17 ruptured 28 unruptured VADAs. Overall, 26 treated trapping, 14...

In ultrasound (US)-guided fine-needle aspiration (FNA) of solid thyroid nodules (STN) using liquid-based cytology (LBC), the most appropriate needle size for LBC remains unclear. This study compared cytological adequacy and complications associated with 23- 25-gauge needles in US-guided FNA STNs LBC. was performed consecutive patients by one radiologist to diagnose ≥ 5 mm largest diameter. The one-sampling technique through a single puncture multiple to-and-fro motions used each patient....

In patients with advanced breast cancer, most new calcifications detected on a mammogram after neoadjuvant chemotherapy are benign dystrophic calcifications, but this is not always observed. We present patient cancer who had paradoxically increased malignant microcalcifications concomitant primary tumor regression undergoing chemotherapy. After the chemotherapy, follow-up revealed that local, fine pleomorphic markedly increased. Pathologically, these were ductal carcinoma in situ. concluded...

Background Computed tomography (CT)-guided percutaneous transthoracic needle biopsy (PTNB) is highly affected by respiratory motion; however, motion of target nodule during the PTNB and its effect on CT-guided lung have not been studied. Purpose To investigate pulmonary nodules PTNB. Material Methods We retrospectively reviewed procedural CT scans 426 that underwent quiet breathing. Maximal average motions were measured using difference table position targeted between multiple scans....

Fenestration of the supraclinoid internal carotid artery is extremely rare and frequently associated with aneurysms at fenestrated segment or other vascular anomalies. We present a case fenestration right in which small arose from neck portion paraclinoid aneurysm fused origin posterior communicating artery.

Abstract Rosai‐Dorfman disease (sinus histiocytosis with massive lymphadenopathy) is an uncommon histiocytic of the lymph nodes. Extranodal presentation, especially in breast parenchymal tissue, rare. A 54‐year‐old woman presented a painful and palpable lump right breast. Ultrasonography revealed irregular, indistinct, hypoechoic mass hyperechoic halo. Pathological analysis proliferation large histiocytes stromal fibrosis emperipolesis positive immunoreactivity for S‐100 CD68. The clinical...

Objective: This study aimed to compare the ultrasonography (US) features of diffuse thyroid disease (DTD) and normal parenchyma (NTP), propose a structured imaging reporting system for detecting DTD. Methods: retrospective assessed findings 270 consecutive patients who underwent US before surgery. The following data were analyzed: DTD-specific features, parenchymal echotexture echogenicity, anteroposterior diameter, glandular margin, vascularity. Univariate multivariate analyses with...

Objective: The relationship between radioactive iodine therapy (RIT) and prevalence of thyroglossal duct cysts (TGDC) on ultrasonography (US) has not been reported. We assessed the US features TGDC according to RIT. Methods: From July 2017 June 2018, 3146 subjects underwent thyroid or neck at our center. presence absence TGDCs was prospectively investigated based real-time examination. Among subjects, 261 were excluded because 0.05). common suprahyoid location, approximately 1 centimeter,...

Background: Benign thyroid follicular tumors without histological evidence of carcinoma can metastasize. However, the pathogenesis metastasis remains unclear. Here, new proposed terminology, "noninvasive neoplasm with papillary-like nuclear features" should be considered. We present a case an encapsulated type variant papillary (FVPTC) that exhibited distant lung and brain metastases was initially diagnosed as adenoma. Case Report: In December 2006, 60–7064-year-old woman underwent...

No previous study has employed the frequency and interval of follow-up ultrasonography (US) during first 10 years after total thyroidectomy in patients with papillary thyroid carcinoma (PTC). The aim this was to determine appropriate US who have undergone for PTC.Two hundred seventy-two underwent PTC at our institution from January 2006 December 2007. Nineteen were excluded because lack data neck. Follow-up performed by one two radiologists all patients. Tumor recurrence/persistence...

Compressed sensing is used for accelerated acquisitions with incoherently under-sampled k-space data, and intracranial time-of-flight magnetic resonance angiography suitable compressed sensing. beneficial in decreasing acquisition time increasing spatial resolution while maintaining time. In this retrospective study, we aimed to evaluate the image quality diagnostic performance of high compare parallel imaging using digital subtraction as a reference.In total, 39 patients 46 aneurysms...

Purpose Imaging follow-up after endovascular treatment is important; however, time-of-flight magnetic resonance angiography (TOF-MRA) has limitations associated with susceptibility and radiofrequency shielding caused by the stent coils. We evaluated diagnostic performance of pointwise encoding time reduction radial acquisition (PETRA)-MRA for intracranial aneurysms. Material methods A total 186 patients 211 aneurysms who underwent both acquisition- in same imaging session treatment....

Breast lymphomas are rare, malignant breast neoplasms with a heterogeneous pattern of clinical symptoms. Burkitt's lymphoma is highly aggressive, and rapidly growing B-cell non-Hodgkin lymphoma. We report about 27-year-old woman diagnosed as having secondary lymphoma, probably originating from the stomach, multiple distant metastases. ultrasonography revealed multiple, variable sized, masses posterior acoustic enhancement echogenic rims. These imaging findings may sometimes overlap those...

We present a rare case of male axillary accessory breast cancer, which is extremely and indistinguishable from lymphadenopathy other malignancies, such as lymphoma skin-derived tumors. Clinicians should consider cancer in the differential diagnosis even men, particularly those who with superficially located tumors adjacent tissue.

Rationale: Based on imaging and biopsy results, surgical removal of mediastinal nodular hyperplasia (MNH) may be unnecessary, mediastomy avoidable. Patient concerns: We report three cases presenting as a mass studies during health check-up or for the evaluation known abscess in right masticator submandibular spaces. Interventions: In first two cases, excision was performed, third case, US-guided core needle performed. Diagnoses: Histopathological examination revealed MNH histologic suggested...

Abstract Background The purpose of our study is to evaluate risk factors for the development pulmonary fibrosis in baseline computed tomography (CT) during course chemotherapy‐induced pneumonitis (CIP). Methods We retrospectively identified 80 cases CIP by clinical, radiological, and pathological findings. When developed follow‐up, extent was evaluated at final follow‐up CT terms a 5% volumetric score six zones. Univariate multivariate analyses were performed identify clinical radiological...