[Notification of an adverse effect to human albumin (99m)Tc-nanocolloid]. / Notificación de una reacción adversa al (99m)Tc-nanocoloide de albúmina.

Allergic reactions to albumin nanocolloid are rare. Most of them are not potentially serious and in some cases treatment with antihistamines may be needed. We present a case of a patient with grade II right breast ductal carcinoma, in whom a lymphoscintigraphy was performed for sentinel lymph node detection. She had a type I hypersensitivity reaction following the administration of (99m)Tc-albumin nanocolloid, which abated spontaneously without subsequent sequels.

[An anomalous origin of the left coronary artery associated with a right coronary spasm as the cause of angina and presyncope]. / Origen anómalo de la arteria coronaria izquierda asociado a espasmo de la coronaria derecha como causa de angina y presíncope.

We describe the rare association of angina at effort and presyncope in a young patient with an anomalous origin of left coronary artery and associated coronary spasm in the normal right coronary artery. The patient did well under calcium channel blocker therapy after seven years of follow-up, which is in contrast with the usual recommended management of these patients.