Matias Villeta

Learn More
BACKGROUND Teratoma is a germ-cell tumor that commonly affects the gonads. Its components originate in the ectoderm, endoderm, and mesoderm. Extragonadal occurrence is rare. Teratomas confined to the adrenal gland are exceptional; only 3 cases have been reported in the English-language literature. We report 2 cases of mature teratomas of the adrenal gland(More)
Endometriosis is the proliferation of endometrial tissue outside the normal confines of the myometrium or uterine cavity. Endometriosis involving the urinary tract occurs in approximately 1% to 2% of cases. The bladder is affected in 80% of these patients. The diagnosis of vesical endometriosis is difficult, and it should be confirmed by cystoscopy with(More)
OBJECTIVE Primary penile leiomyosarcoma is a rare entity. Since 1930 only 30 cases have been reported in the bibliography. We wanted to add a new case to the international literature, in addition to a review of all available publications on the topic from 1957. A 54-year-old patient presented with a lobulated 8x4x3 cm lesion in the balanopreputial groove(More)
OBJECTIVES The renal graft rupture (RGR) was first described in 1968; it is a severe situation, generally appearing in the immediate post-operative period. OBJECTIVES To retrospectively analyze the incidence of renal graft rupture in the population of patients who underwent kidney transplant in the Renal Transplant Department of the Angerich Hospital. (More)
Nephroblastoma or Wilms tumor is the most common renal neoplasia in children, representing 1/5 of the malignant tumors in this group. Nevertheless, the incidence of such tumor in adults is much rarer with less than 250 cases reported. Due to the low-frequency of this pathology in adults there is not a world widely accepted treatment modality. Currently, the(More)
  • 1