Santiago Nieto Llanos

Hospital Universitario Henares · Pathology

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 (p...

History A 61-year-old man with no relevant medical history was admitted to the emergency department with symptoms of congestive heart failure and a 1-week history of chest pain, progressive dyspnea, abdominal swelling, bipedal edema, and anorexia. Laboratory test results, including complete blood count and electrolyte, creatinine, creatine phosphok...

Vasa praevia is a rare condition in which the foetal blood vessels cross the foetal membranes of the lower segment of the uterus below the presenting part. It has a high foetal mortality due to foetal exsanguination resulting from foetal vessels tearing when the membranes rupture. Prenatal diagnosis can reduce or even prevent foetal mortality, but...

Vasa praevia is a rare condition in which the foetal blood vessels cross the foetal membranes of the lower segment of the uterus below the presenting part. It has a high foetal mortality due to foetal exsanguination resulting from foetal vessels tearing when the membranes rupture. Prenatal diagnosis can reduce or even prevent foetal mortality, but...

Objectives: Case report of a mature cystic teratoma (dermoid cyst), pseudopilomatrixoma like variant. Method: 53-year old patient with a left testicular mass, diagnosed as mature cystic teratoma of the testis (dermoid cyst), the pilomatrixoma-like variant, after radical orchiectomy. Tumoral markers were negative and no extension was observed. The p...

Case report of a mature cystic teratoma (dermoid cyst), pseudopilomatrixoma like variant. 53-year old patient with a left testicular mass, diagnosed as mature cystic teratoma of the testis(dermoid cyst), the pilomatrixoma-like variant, after radical orchiectomy. Tumoral markers were negative and no extension was observed. The patient is disease-fre...

Ganglioneuromas are neuroblastic tumours with a higher degree of histological differentiation and clinical benignity. They are well defined, encapsulated tumours that are made up of mature ganglionar cells. They are located mainly in the sympathetic ganglia of the mediastinum and the retroperitoneum. In this latter place they can be very large and...

The authors describe a new technique for reconstruction of mandibular body defects. The feasibility of distraction osteogenesis with submerged (internal) devices for reconstruction of segmental mandibular defects is investigated in an experiment with five adult dogs. A segmental mandibulectomy was performed on the horizontal ramus. The bony defect...

Detection of human papillomaviruses DNA (HPV) in tumour samples is often determined by a PCR based approach with standard universal consensus oligonucleotides. It is shown that these primers under the same amplification conditions can amplify a human genomic sequence of 1361 nucleotides in oral carcinomas and normal DNA samples. This sequence is de...

We present a novel and highly accurate system based on informatics engineering capable of automatic detection of tumors directly in the operating field. The system can identify the outlines of the tumor, determine whether it is malignant or not, detect lymphadenopathy and determine whether nodes are metastasized or not. The highly elaborate system,...

This paper reports two cases of vesical schistosomiasis in two black patients treated in this Service over the last three years. A description is made of the different anatomo-clinical presentations of these two cases, commenting on the characteristics of this disease, its pathogenesis, diagnosis and treatment, and stressing the slight increase in...