Bartonella henselae infection is a frequent zoonosis from the domestic cat. It is presented with regional lymphadenitis in the majority of cases. Searching and characterization of lymph nodes by diagnostic imaging can be useful in the differential diagnosis approach, with a clear advantage, because it is a noninvasive method. Currently, new diagnostic imaging techniques improves the quality of screening and characterization of adenopathies, such is the case of PET/CT, which allows a better evaluation of hypermetabolic lymph nodes, without considering the individual growth of each lymph node. In this article, three cases of cat scratch diseases serology and their respective imaging findings are reviewed.

Résumé -Un cas exceptionnel de radiothérapie peropératoire intracardiaque a nécessité l'organisation de ce traitement administrativement, mais aussi en terme de radioprotection. En effet, le traitement devait être effectué dans un établissement non prévu pour des irradiations. Nous avons donc dû préparer, informer, simuler avant la réalisation. Avec l'énergie des photons de 50 kVp et les précautions prises il n'y a eu aucune incidence sur le personnel et l'environnement. Ce cas montre qu'il est possible d'envisager une externalisation de la radiothérapie peropératoire sous réserve des procédures d'autorisation et des mesures de radioprotection. Abstract -Radiation protection in an exceptional case of intraoperative radiotherapy in a non-radioprotectedplace. An exceptional case of intracardiac intraoperative radiotherapy required the administrative organization of this treatment, but also in terms of radiation protection. Indeed, the treatment was to be conducted in a facility not designated for radiotherapy, so we had to prepare, inform and simulate before the treatment was carried out. With photon energy of 50 kVp and the precautions taken there was no impact on the staff and the environment. This case shows that it is possible to consider outsourcing of IORT subject to authorization procedures and radiation protection measures.

Background: Spontaneous dissections of visceral arteries are rare and usually secondary to other disease. There is paucity of information about their natural course. Aim: To describe the imaging, clinical characteristics and follow-up of spontaneous visceral artery dissections diagnosed at our institution. Material and Methods: We report a series of 14 patients in whom a spontaneous dissection of a visceral artery was diagnosed on abdominal angio-CT between 2010 and 2018. Clinical features and evolution were recorded. Results: Isolated lesions of the celiac axis were the most common finding. Multiple territories were involved in 14% of cases. A dissection flap was observed in four cases, a hematoma-dissection complex in seven and an aneurysmal dilatation associated with the dissection in three. Of the 10 patients who were followed at our institution, 90% had stabilization or partial regression of the imaging findings. In the remaining case, new dissection events were observed. All cases were managed conservatively, and no death was reported. Conclusions: In this series of patients, spontaneous dissection of visceral arteries had a benign, favorable course, requiring only conservative management.

Tabla 4. Cantidad de pacientes con CP* según grupo de riesgo de CP* CP* Nº Pacientes Riesgo bajo G**6 21 (15,6%) Riesgo intermedio G** 7 35 (26,1%) 26,8% CP* clínicamente Riesgo alto G** >7 1 (0,75%) significativo Total 57 (42,4%) *Cáncer de próstata; **Gleason