Onco-Ontogeny of Squamous Cell Cancer of the First Pharyngeal Arch Derivatives.

Head and neck squamous cell carcinoma (H&NSCC) is an anatomic, biological, and genetic complex disease. It involves more than 1000 genes implied in its oncogenesis; for this review, we limit our search and description to the genes implied in the onco-ontogeny of the derivates from the first pharyngeal arch during embryo development. They can be grouped as transcription factors and signaling molecules (that act as growth factors that bind to receptors).

Molecular Identification of Human Papillomavirus DNA in Thyroid Neoplasms: Association or Serendipity?

Background: Human papillomavirus (HPV) is recognized as the most important cofactor in the etiology of cancers of the cervix, esophagus, larynx, and nasopharynx. Experimental evidence suggests that HPV could have an oncogenic influence on thyroid follicular cells; however, to the best of our knowledge, there is no record of its role in human thyroid gland neoplasms.

Objective: The purpose of this study is to describe the frequency and the types of HPV present in neoplastic thyroid tissue by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP).

Use of fibrin sealant in hypospadias surgical repair reduces the frequency of postoperative complications.

Introduction: Urethrocutaneous fistulas (UCF) and flap dehiscence (FD) are the most common postoperative complications after hypospadias (HS) surgical repair. The aim of this study was to evaluate whether the application of fibrin sealant over the site of surgery and suture lines reduces these complications.

Materials And Methods: A prospective cohort of consecutive patients was treated over a 3-year period.

[Complications of the management of secondary peritonitis with contained-open abdomen. Comparison of the Bogota's bag vs polypropylene mesh].

Background: Surgery is the cornerstone regarding the treatment of secondary peritonitis, although the complications of the contained-open abdomen are common, and are usually severe.

Objectives: To identify the complications with the use of the "Bogotá's bag" compared with polypropylene mesh in contained-open abdomen. To identify other possible morbidity and mortality risk factors, independently of the mesh type usage.

[Cervical esophagogastrostomy dehiscence after gastric pull-up for type I esophageal atresia. Case report of a patient successfully treated with fibrin glue and a review of the literature].

Introduction: The treatment of choice for type 1 esophageal atresia is surgery to re-establish continuity of gastrointestinal tract by colon interposition or gastric pull-up. Incidence of cervical anastomosis dehiscence is 20-40%. Although it is not a serious complication, it requires a fasting period and nutritional support to achieve spontaneous closure within 2-4 weeks.