Rev Esp Patol
March 2025
Introduction: Microscopic assessment is essential in the study of mediastinal lymph nodes. Obtaining cytological samples through Endobronchial Ultrasound TransBronchial Needle Aspiration (EBUS-TBNA) has long been considered the gold standard procedure. The implementation of the World Health Organization (WHO) Reporting System for Lymph Node Cytopathology, along with the advancement of the CryoEBUS lymph node technique, has enhanced and refined diagnostic accuracy in this field.
View Article and Find Full Text PDFEndobronchial ultrasound (EBUS)-guided mediastinal cryobiopsy is a novel technique that increases the accuracy of diagnosing most pathologies that affect the mediastinum. Although EBUS-guided transbronchial needle aspiration (EBUS-TBNA) is the first choice in the diagnosis of mediastinal pathology, mediastinal cryobiopsy offers a larger and higher quality biopsy with minimal artifacts and no crushing when compared to conventional cytological samples obtained through EBUS-TBNA. It is particularly valuable in pathologies where EBUS-TBNA has diagnostic limitations, such as lymphoproliferative diseases, benign granulomatous conditions like sarcoidosis and silicosis, some rare infectious processes, metastases from rare non-pulmonary tumors, and in advanced stages of non-small cell lung cancer (NSCLC) where immunohistochemistry and molecular analysis are essential for personalized treatment.
View Article and Find Full Text PDFCytopathology
January 2024
Introduction: Despite the established role of the interventional pathologist, their diagnostic performance is difficult to establish. At least in Spain training of pathology residents in ultrasound-guided interventional procedures for specimen collection is limited or absent in most institutions. We present our teaching experience in the instruction of ultrasound-guided fine-needle aspiration (FNA) to pathology residents in a tertiary-level hospital.
View Article and Find Full Text PDFERJ Open Res
March 2023
Background: Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is the technique of choice in the study of mediastinal and hilar lesions; however, it can be affected by the insufficiency of intact biopsy samples, which might decrease its diagnostic yield for certain conditions, thus requiring re-biopsies or additional diagnostic procedures such as mediastinoscopy when the probability of malignancy remains high. Our objectives were to 1) attempt to reproduce this technique in the same conditions that we performed EBUS-TBNA, in the bronchoscopy suite and under moderate sedation; 2) describe the method used for its execution; 3) determine its feasibility by accessing different lymph node stations applying our method; and 4) analyse the diagnostic yield and its complications.
Methods: This was a prospective study of 50 patients who underwent EBUS-TBNA and EBUS-guided transbronchial mediastinal cryobiopsy (TMC) in a single procedure using a 22-G TBNA needle and a 1.
Background And Objective: Diabetes mellitus is the leading cause of chronic kidney disease (CKD) in our country. The objective was to estimate the global prevalence and by health areas of CKD in the diabetic population of Extremadura.
Methods: Observational, longitudinal retrospective study in the diabetic population attended in the Extremadura Health System in 2012-2014.
Signet-ring cells are morphologically defined by the presence of a large intracytoplasmic vacuole that compresses and displaces the nucleus to the periphery. In most cases, these cells are associated with adenocarcinomas of various locations, and with non-epithelial neoplasms. To date, less than 20 cases of squamous cell carcinoma with signet-ring morphology have been described, mainly located on the skin.
View Article and Find Full Text PDFClear Cell «sugar tumor» of the lung is a rare nosological entity of which around 60 cases have been published in the scientific literature. Considered to be of mesenchymal origin, it presents a typical histochemical - immunohistochemical profile, positive PAS and melanic markers, which allows it to be differentiated from other more frequent neoplasms with worse prognosis. We present the case of a 56-year-old man with a clear cell lung tumor.
View Article and Find Full Text PDFObjective: The minimally invasive fine-needle aspiration cytology (FNAC) is the current gold standard for the diagnosis of thyroid nodule malignancy. However, the correct discrimination of follicular neoplasia often requires more invasive diagnostic techniques. The lack of suitable immunohistochemical markers to distinguish between follicular thyroid carcinoma and other types of follicular-derived lesions complicates diagnosis, and despite most of these tumours being surgically resected, only a small number will test positive for malignancy.
View Article and Find Full Text PDFEndocrinol Diabetes Nutr (Engl Ed)
January 2022
Acta Cytol
November 2021
Introduction: The Sydney system proposal for the study and reporting of lymphadenopathy by fine-needle aspiration (FNA) constitutes one of the first attempts to standardize this procedure. Here, we review its applicability.
Materials And Methods: A retrospective study in which all ultrasound-guided FNAs (USFNAs) of superficial lymphadenopathy (palpable or not) performed by interventional pathologists in 2 specialized hospital centers were quantified over 2 years.
Diabetes mellitus (DM) is one of the leading causes of chronic kidney disease (CKD). We analyzed the prevalence of CKD in the population with diabetes in Extremadura (Spain). retrospective observational study was carried in the diabetic population attended in the Extremadura Health System in 2012-2014.
View Article and Find Full Text PDFIntroduction: Muscle biopsy plays a major role in the final diagnosis of myopathies. Open muscle biopsy is the benchmark procedure, although minimally invasive percutaneous muscle biopsy (MIPMB) has demonstrated comparable diagnostic performance at a lower cost and can be carried out by interventional pathologists.
Materials And Methods: Muscle biopsies performed from 1997 to 2017 were reviewed and classified according to the type of procedure, whether carried out by an interventional pathologist or another specialist, the diagnosis and the effectiveness of the procedure.
Amyloid goiter (AG) (primary or secondary) is extremely rare. An abdominal fat pad core needle biopsy (CNB) is the diagnostic gold standard for secondary amyloidosis. Although CNB is useful to detect amyloid infiltration of a specific organ, fine-needle aspiration (FNA) is proven to be the best diagnostic method for thyroid disorders.
View Article and Find Full Text PDFRev Esp Patol
May 2020
Arch Bronconeumol (Engl Ed)
September 2019
Introduction: Silicosis is a chronic progressive disease caused by inhalation of crystalline silica. Most cases develop in underground mine workers and in subjects involved in the extraction of natural stone (slate and granite). In view of the progressive emergence of new cases of silicosis in artificial quartz conglomerate workers, we performed a study to analyze the characteristics of silicosis produced by this new agent in Spain.
View Article and Find Full Text PDFTransbronchial biopsy using forceps (TBB) is the first diagnostic technique performed on patients with interstitial lung disease (ILD). However, the small size of the samples and the presence of artefacts in the tissue obtained make the yield variable. Our objectives were 1) to attempt to reproduce transbronchial cryobiopsy under the same conditions with which we performed conventional TBB, that is, in the bronchoscopy unit without intubating the patient and without fluoroscopy or general anaesthesia; 2) to describe the method used for its execution; and 3) to analyse the diagnostic yield and its complications.
View Article and Find Full Text PDFLower urinary tract symptoms (LUTS) are a frequent cause of consultation in Primary Care, especially in men >40 years of age. Benign prostatic hyperplasia (BPH) has been recognized as the most common cause of bothersome LUTS, causing significant interference with everyday activities and quality of life. The purpose of this study is to provide an update on recent developments regarding the medical management of male LUTS.
View Article and Find Full Text PDFThe possible modulatory effect of the functional LMN diet, rich in theobromine, polyphenols and polyunsaturated fatty acids, on the catecholaminergic and cholinergic neurotransmission, affecting cognition decline during aging has been studied. 129S1/SvlmJ mice were fed for 10, 20, 30 and 40 days with either LMN or control diets. The enzymes involved in catecholaminergic and cholinergic metabolism were determined by both immunohistological and western blot analyses.
View Article and Find Full Text PDFObjective: To analyze the impact of a multidisciplinary and decentralized safety committee in the pediatric management unit, and the joint implementation of a computing network application for reporting medication errors, monitoring the follow-up of the errors, and an analysis of the improvements introduced.
Material And Methods: An observational, descriptive, cross-sectional, pre-post intervention study was performed. An analysis was made of medication errors reported to the central safety committee in the twelve months prior to introduction, and those reported to the decentralized safety committee in the management unit in the nine months after implementation, using the computer application, and the strategies generated by the analysis of reported errors.