Tanner stages and Prader orchidometry in male adolescents. A descriptive, cross-sectional study.

Introduction. The Tanner scale and the Prader orchidometer are the instruments most commonly used to assess pubertal development in children. The assessment of puberty in the clinic is only useful if recent and reliable references in the same population are available for comparison.

Concordance of testicular measurement in male adolescents with three methods of orchidometry.

Introduction: The Prader orchidometer is the standard method used to measure testicular volume (TV) in children and adolescents.

Objective: To assess the concordance in the estimation of TV and puberty onset with the Prader, Chipkevitch, and Sotos orchidometric techniques.

Methods: Cross-sectional descriptive study conducted among male children and adolescents aged 9-20 years.

Strong reduction in prevalence of HPV16/18 and closely related HPV types in sexually active adolescent women following the introduction of HPV vaccination in Argentina.

• HPV16/18 decreased by >93% in vaccinated sexually active Argentine girls. • Detected reduction of HPV31 and 45 would add to the success of immunization. • No genotype replacement was observed.

Self-injurious behaviors among adolescents: A qualitative study of characteristics, meanings, and contexts.

Introduction: Self-injurious behaviors, such as cutting, are quickly spread and transmitted among adolescents, although it is not clear how. Our objective was to describe and analyze the social interactions occurring in relation to these behaviors.

Population And Methods: Descriptive, qualitative, and cross-sectional design.

Pain in adolescents and its risk factors: A case-control study.

Introduction: The most common painful syndromes (headache, abdominal pain and musculoskeletal pain) develop or worsen during adolescence and are a common reason for consultation.

Objective: Evaluate the association of age, sex, obesity, pubertal development, schooling level, employment and family structure with consultation for pain in adolescents.

Population And Methods: Case-control study conducted between February 1st, 2014 and June 30th, 2015.

[Ischemic colitis: an uncommon manifestation in systemic lupus erythematosus].

We present the case of an adolescent with ischemic colitis, an infrequent pathology in this age group, worsened in the presence of systemic lupus erythematosus (SLE). The patient, aged 20, was diagnosed SLE at 6. She consulted for fever, abdominal pain in the side and right iliac fossa and diarrhea lasting 48 hours.

[A non invasive method for assessing sexual development at adolescence].

Introduction: Observational assessments of puberty that invades the adolescent's privacy are not acceptable for research in population groups. Results based on self assessment have been variable, and in many cases poor.

Objectives: To evaluate the validity of a questionnaire with simple questions addressed to assess early, intermediate and advanced puberty periods rather than specific stages.