Alvaro Ibarra

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Ten occult carcinomas of the thyroid gland were found in 274 unselected autopsies at the Pathology Service, Hospital José Joaquín Aguirre, between December 1980 and March 1983. This is the lowest incidence among the most recent published series. The present results suggest that environmental factors play an important role in the etiology of this type of(More)
Glucagonomas are alpha pancreatic islet cell tumors that, when they are active, produce a syndrome characterized by necrolytic migratory erythema, diabetes mellitus, weight loss, anemia, glossitis, thromboembolism, neuropsychiatric disturbances and hyperglucagonemia. We report a 43 years old male presenting with a five years history of dermatological(More)
We report the case of a 60-year-old woman with multiple pancreatic nodules found on abdominal computed tomography. Thirteen years earlier she had undergone a left nephrectomy for renal cell carcinoma. The patient underwent surgery with a preoperative diagnosis of multifocal metastatic or neuroendocrine tumor. At surgery, two metastatic nodules of renal cell(More)
OBJECTIVE To evaluate the concordance between the breast MRI findings and the histologic findings for the size and extension of pure ductal carcinoma in situ (DCIS) and to compare this concordance with that of conventional techniques (mammography and ultrasonography). MATERIAL AND METHODS This is a retrospective study of consecutive patients diagnosed(More)
Percutaneous puncture for cytologic study was performed in 136 patients with nodular goiter. All patients were operated on and correlation of cytologic and histologic findings was obtained. Echographic study revealed a solid aspect in 72%, cystic aspect in 10% and mixed in 18%. The cytologic findings were classified as: benign--hyperplasia--, chronic(More)
Traditionally, Basedow-Graves disease was considered a protection against thyroid cancer. However, recent reports suggest that cancer occurs with a higher frequency than expected and is more aggressive in this disease. We report six patients with hyperthyroidism due to a Basedow Graves disease that presented a palpable thyroid nodule, which was cold in the(More)