Unsuspected thrombocytopenia causing massive haemorrhage at operation.
D000234:Adenoids / Q000601:surgery*; D001780:Blood Coagulation Tests; D002675:Child, Preschool; D005260:Female; D006801:Humans; D006472:Oral Hemorrhage / Q000209:etiology*; D011183:Postoperative Complications; D013921:Thrombocytopenia / Q000150:complications*; D014068:Tonsillectomy / Q000009:adverse effects*