Bezoars are foreign bodies, conglomerates of hair, plant fibers, medications and other substances in the gastrointestinal tract, usually associated with behavioral disorders; The objective of treatment is its removal, associated with the prevention of recurrence. Clinical cases of two female patients, one 11 and the other 12 years old, are presented, who after different auxiliary examinations and medical evaluation, underwent exploratory laparotomy, preceding trichobezoar extraction.

Testicular cancer is a very rare malignant tumor in prepubescent males younger than 15-year-old with an incidence of 1/1 000 000. Testicular yolk sac tumor is the most common type of testicular germ cell tumor (TCGT) in children younger than 2-year-old. Clinical case: Child of 2-year-old and five months with cryptorchidism left, which presented, six months ago, progressive increase of a tumor located in the entire left groin; characterized by being of hard consistency, painless and show no discoloration changes in the overlying skin. Results: In the auxiliary examinations, the ultrasound showed: large solid mass, ovoid, heterogeneous echogenicity and multiple anemic cavities. The only tumor marker with an increase was Alpha-fetoprotein (AFP): 12 845.00 ng/mL. The presumptive diagnosis was of malignant testicular tumor until proven otherwise. Radical ing...

El Pectus excavatum, es la malformación congénita del tórax más frecuente, caracterizada por una depresión anterior del esternón, La cirugía es el tratamiento primario de estos pacientes. Presentamos este caso por ser el primero que se realiza en Tacna con esta técnica mínimamente invasiva.