[Renal tumor in single-kidney patients. Apropos of 6 cases]. / Tumor renal en monorrenos. A propósito de seis casos.

A retrospective study was undertaken to evaluate the results achieved by treatment of renal tumor in 6 patients with solitary kidney. Two were treated conservatively, three were submitted to radical nephrectomy, and one patient underwent heminephrectomy. The mean follow-up was 28 months, the mortality rate was 33%, and metastasis was observed in another 33% of this patient group during follow-up.

[Distal tubular renal acidosis associated with hyperglobulinemic purpura and Sjõgren's syndrome]. / Acidosis tubular renal distal asociada a púrpura hipergammaglobulinémica y síndrome de Sjögren.

A 35-year-old female with a diagnosis of Waldenström's benign hypergammaglobulinemic purpura developed bilateral renal stones during the course of her disease. Evaluation disclosed type I distal tubular renal acidosis. In addition, the patient developed Sjögren's syndrome seven years later. The etiology and pathogenesis of renal tubular acidosis secondary to autoimmune disease are reviewed, and the exceptional occurrence of the three conditions in a single patient is commented.

Hyperparathyroidism associated with renal disease. Pathogenesis, natural history, and surgical treatment.

Hyperparathyroidism associated with renal failure is due to chronic parathyroid stimulation by hypocalcemia, which, in turn, results from hyperphosphatemia and low circulating 1,25(OH)2D3. If prophylactic measures and medical treatment of hyperparathyroidism fail, parathyroidectomy should be performed to prevent the progression of bone disease. Resolution of renal hyperparathyroidism is often seen after kidney transplantation, but some hypercalcemic patients require prophylactic or therapeutic parathyroidectomy. Hypocalcemia is the most common complication after parathyroidectomy. Our long-term results with subtotal parathyroidectomy are satisfactory. Total parathyroidectomy plus parathyroid autograft should be used in selected cases.

[Toxic hepatitis and acute renal failure after inhalation of chloride solvents: report of one case (author's transl)]. / Hepatitis tóxica y fracaso renal agudo secundarios a inhalación de disolventes clorados. Presentación de un caso.

Due to a combination of ingested ethanol and inhaled trichloroethylene (Tri) a 28 year old man developed toxic hepatitis and acute oliguric renal failure, both of which had a favorable evolution. Tri has been described as a cause of hepatic disfunction and acute renal failure due to acute tubular necrosis, although some of the cases described are controversial, because Tri was either contaminated by other dissolvents or could not be proven pure, with the exception of one case. In many there was ethanol ingestion. The Tri inhaled by our patient was found to contain less than 1% of carbon tetrachloride (C-Tchl). This would suggest the C-Tchl to be responsible for the clinical picture although the combination Tri/ethanol cannot be discarded as the causal agent, due to the small amount of contaminant present.