[Cardiac hydatid cyst. Which imaging modality for an accurate diagnosis?]
Cardiac echinococcosis is rare. Its spontaneous course is serious because of the risk of rupture. Its clinical manifestations are variable, often latent and misleading. The diagnosis is sometimes referred to by chest radiography. It is much facilitated by non-invasive imaging techniques in particular transesophageal and transthoracic echocardiography, CT scan and magnetic resonance imaging. The latter through a morphological and topographical analysis accurate diagnosis of hydatid cyst and its relationship to cardiac muscle and surrounding tissue. Through functional analysis in cine cyst movements relative to the heart wall, it confirms its free or fixed character in the heart chambers, determines its insertion area, its deformability, the risk of rupture and its impact on myocardial contraction. Our case illustrates the relative contribution of these different imaging techniques and their respective contributions to the identification of hydatid cyst of its wall, its contents, its relationship with the various tunics and heart chambers and its relations with the lungs and mediastinum.
Faculté de médecine de Tunis, université de Tunis El Manar, 1007 Tunis, Tunisie; Service de cardiologie, hôpital De Menzel Bourguiba, 7050 Bourguiba, Tunisie. Electronic address: benkhalfallah@planet.tn.
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Ben Khalfallah
Faculté de médecine de Tunis, université de Tunis El Manar, 1007 Tunis, Tunisie; Service de cardiologie, hôpital De Menzel Bourguiba, 7050 Bourguiba, Tunisie.
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Ben Slima
D000328:Adult; D003937:Diagnosis, Differential; D004443:Echinococcosis / Q000150:complications* / Q000175:diagnosis* / Q000000981:diagnostic imaging; D004452:Echocardiography; D017548:Echocardiography, Transesophageal; D004562:Electrocardiography; D006331:Heart Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000469:parasitology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D011237:Predictive Value of Tests; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed
CT scan; Cardiac hydatid cyst; Echocardiography; Imagerie par résonance magnétique; Kyste hydatique du cœur; Magnetic resonance imaging; Tomodensitométrie; Échocardiographie