[Hereditary spherocytosis in neonates. Review of our caseload].

Aim: Review of hereditary spherocytosis diagnosed in infants younger than two months and their follow up.

Patients And Methods: Retrospective study of 18 infants younger than two months diagnosed from 1973 to 1995.

Results: Diagnosis was established in the first week of life in 50% of the patients.

[A 49 year old patient with single left ventricular morphology who underwent surgical repair and good outcome ].

We report a 51-year-old patient, diagnosed with single left ventricle and anterior rudimentary chamber which was corrected by a Fontan procedure in 1997. The echocardiogram, Holter and pulmonary perfusion scintigraphy, isotopic ventriculography, magnetic resonance and blood tests performed during follow-up showed an uncomplicated postoperative course. The patient remains asymptomatic.

[Duodenal metastasis of renal cell adenocarcinoma].

Duodenal metastases are a rare finding. Only 7% of these metastases are originated from a renal cell carcinoma and usually appear as a disseminated metastatic disease. The case of a patient with a duodenal metastasis from a renal cell carcinoma treated by duodenal resection, eight years after nephrectomy, is presented.

[Urologic manifestations of primary hyperparathyroidism].

We report on 79 patients with primary hyperparathyroidism (PHPT) and analyze the urological manifestations, analytical and histopathological changes commonly encountered in this disease. The importance of repeating calcium studies in patients with recurrent calcium stone formation is underscored. The appropriate metabolic work up should be performed when elevated values are detected.

Human immunodeficiency virus-induced immunosuppression: a risk factor for human papillomavirus infection.

In a group of 92 women with genital condylomata, 15 (16.3%) human immunodeficiency virus-positive patients were found, whereas no case was detected in a control group of 100 women. The relative risk was greater than 19.

[Mediastinal tumors in children: apropos of 2 cases].

General anesthesia in patients with mediastinal tumors has specific problems that need careful evaluation before surgery. Sometimes, mediastinal masses may result in life threatening complications, such as upper airway obstruction, superior vena cava syndrome, cardiac or pulmonary artery compression and acute pulmonary edema. After a review of the literature related to death during general anesthesia in children with mediastinal tumors, we emphasize the importance of the agreement between oncologists, surgeons and anesthesiologists for a sound diagnosis of these patients.