title: Clinical dilemma: A parathyroid adenoma cannot be found during neck exploration of a patient with presumed primary hyperparathyroidism. How should this problem be tackled?
authors.affiliation: Allgemeinchirurg, Klinikum der Philips-Universität Marburg, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Rothmund
mesh_terms: D000236:Adenoma / Q000175:diagnosis*; D006801:Humans; D006961:Hyperparathyroidism / Q000150:complications*; D010282:Parathyroid Neoplasms / Q000175:diagnosis*; D010808:Physical Examination