An enzyme immunoassay to determine human chorionic gonadotropin (HCG) in serum and urine samples using an ultra-microanalytical system.

The determination of Human Chorionic Gonadotropin (HCG) in biological fluids is of great interest in the early pregnancy diagnostics, the evaluation of pregnancy disorders, as a tumor marker, as a screening procedure for anti-doping control, and many other purposes. A simple sandwich-type UltraMicro Enzyme-Linked ImmunoSorbent Assay (UMELISA) has been developed for the measurement of HCG in serum and urine samples. Strips coated with a high affinity MAb directed against HCG are used as solid phase, to ensure the specificity of the assay.

[Dermoid cyst of the floor of the mouth].

Dermoid cysts are congenital lesions composed of tissues with different origins: ectoblastic, mesoblastic, or endoblastic, caused by a defect in the fusion of the embryonic lateral mesenchymatic mass. A true dermoid cyst is a cavity covered with epithelium showing keratinisation and presenting identifiable dermal appendices. We present a case of a male patient aged 53 years presenting tumouration on the floor of the mouth with an evolution of about 30 years.

[Emphysema in the tonsil surgery. A case report].

Subcutaneous peripharyngeal emphysema and pneumomediastinum are rare complications in postoperative patients after several types of surgery (orthognathic, laryngeal, tracheotomy and oropharyngeal). We report a case of subcutaneous and peripharyngeal emphysema after bilateral tonsillectomy in a 43-year-old male. Air or anesthetic gases spread to the neck, mediastinum, abdomen, or pleural cavity.