[Abdominal splenosis: an often underdiagnosed entity].

Splenosis is defined as the heterotopic autotransplantation of splenic tissue because of a ruptured spleen due to trauma or surgery. It is a benign and incidental finding, although imaging tests may sometimes orient toward malignancy simulating renal tumors, abdominal lymphomas, endometriosis, among other. We report the case of a 42-year old male in whom a MRI was performed after a study due to abdominal pain.

[Interstitial nephritis demonstrated by 67Ga-citrate scintigraphy within a diagnosis of fever of unknown origin].

We present a clinical case of a 54-year-old woman that was admitted in our hospital with the diagnosis of fever of unknown origin. All the laboratory tests and imaging techniques did not manage to establish the fever's aetiology until a (67)Ga-citrate scan was performed and kidney uptake was observed, which lead to the clinical suspicion of drug-induced interstitial nephritis. The renal biopsy confirmed the diagnosis.

[Somatostatin receptor scintigraphy in pediatric bronchial carcinoid tumor].

Introduction: Carcinoid tumor is a rare neuroendocrine neoplasm with different locations, the most frequent ones during the pediatric age being the appendix and lung. Scintigraphy with (111)In-DTPA-d-Phe(1)-octreotide has led to an importance advance in the diagnosis of extension in carcinoid tumor patients. We present three pediatric patients with bronchial carcinoid studied with somatostatin analogue scintigraphy (SSRS).

[Relative renal function based on DMSA uptake corrected for volume: normalized relative renal function].

Objective: Relative renal function (RRF) quantification based on dimercaptosuccinic acid (DMSA) uptake is an established method for determining differential renal function. An abnormal kidney size may lead to an alteration in its RRF value, although it has no dysfunction. Therefore, it is useful to correct RRF values taking into account relative renal volumes, thus obtaining the normalized relative renal function (NRRF).