[Acute abdomen and hyperparathyroidism: a description of a case].

Hypercalcaemia secondary to primary hyperparathyroidism may present with an insidious clinical picture and involve multiple organs, which may lead to a delay in its diagnosis and erroneous therapeutic actions, due to its similarity to other different conditions. We describe the case of a patient who was admitted to our hospital with the diagnosis of acute abdomen. A laparotomy was performed which was negative. The slow post-operative progress and the clinical neurology of the patient was resolved after checking for the presence of a significant hypercalcaemia secondary to a parathyroid lymph node.