Biomedical subjects
Publications and source records attributed to J Alonso Pérez.
Two cases of jejunojejunal intussusception in whom diagnosis was reached preoperatively by ultrasonography and small bowel follow-through meal are presented. We review the sonographic patterns of intussusception that allow the differential diagnosis with miscellaneous gastrointestinal abnormalities detected by ultrasound.
We report on a 50-year-old male patient who presented with a scrotal mass which he had noted two years earlier. Ultrasound revealed a well-defined, regular, paratesticular mass. Pathological examination of the surgical specimen revealed abundant lipoblasts and a stroma with myxoid changes, prompting a diagnosis of myxoid liposarcoma of the spermatic cord. Liposarcoma is a rare tumor of the spermatic cord which frequently metastasizes to the lumbar retroperitoneal lymph nodes. The foregoing characteristic and the histologic features of the tumor type influence treatment.
We present a cervical thymic cyst clinically manifest as a lateral neck mass and studied preoperatively with ultrasound. We point to the sonographic findings that allow us to include the cervical thymic cyst as one of the diagnostic possibilities.