Case report: Epidermoid cyst misdiagnosed as a loculated pericardial effusion

Abstract

A 25-year old man presented with a mediastinal lesion which was initially diagnosed as a loculated pericardial collection on echocardiography. Subsequent imaging showed it to be a cystic mediastinal mass, and following surgery and histopathology, it turned out to be an epidermoid cyst.

Keywords

Epidermoid - mediastinal - pericardial

• References

• 1 Sameh IS, Gewaeli NN, Hamza UA, Awadalla MM . Epidermoid cyst radiologically mistaken as a left sided subpulmonic effusion. Interact Cardiovasc Thorac Surg 2003;2:364-6.
• 2 John C. Egelhoff pediatric head and neck imaging. In: John R, editor. CT and MR imaging of the Whole Body Haaga. 4 th ed. p. 696-7.
• 3 Scarrow AM, Levy EI, Gerszten PC, Kulich SM, Chu CT, Welch WO. Epidermoid cyst of the thoracic spine: Case history. Clin Neurol Neurosurg 2001;103:220-2.
• 4 Amstrong P, Wilson AG, Dee P, Hansell DM. In: Mosby, editor. Imaging of diseases of the chest. 2 nd ed. St. Louis; 1995. p. 736.
• 5 Weiss LM, Fagelman D, Warhit JM. CT demonstration of an esophageal duplication cyst. J Comput Assist Tomogr 1983;7:716-8.
• 6 Glazer HS, Siegel MJ, Sagel SS. Low-attenuation mediastinal masses on CT. AJR Am J Roentgenol 1989;152:1173-7.
• 7 Mendelson DS, Rose JS, Efremidis SC, Kirschner PA, Cohen BA. Bronchogenic cysts with high CT numbers. AJR Am J Roentgenol 1983;140:463-5.