Abstract
Introduction. Although adrenal cysts are uncommon, the incidence rate is increasing with the advances in radiological technologies. The incidental detection of adrenal cysts nowadays has become more frequent as a result of the increase usage of high quality imaging modalities. Adrenal cysts originate from the adrenal gland and can be classified into either true or pseudocyst. Presentation of Case. In this report, we described an adrenal cyst of endothelial type, in a 30-year-old lady who was mistakenly diagnosed to have a hydatid cyst both clinically and by imaging. Discussion. Although adrenal cysts are uncommon, the incidence rate is increasing with the frequent use of various high quality radiological technologies. Adrenal cyst should be considered in the differential diagnosis when dealing with upper abdominal cysts. The size of the adrenal cyst can vary from a few millimeters up to 50 cm in diameter. Most of the adrenal cysts are unilateral, while 8%–15% of those cysts do present bilaterally. The majority of cases are diagnosed between the 3rd and 5th decades. Conclusion. Although most of the adrenal cysts are benign in nature, surgical excision is advisable especially when the cysts are greater than 5 cm in diameter and in the case of suspecting malignancy.
Highlights
Adrenal cysts are uncommon, the incidence rate is increasing with the advances in radiological technologies
We present a true adrenal cyst of endothelial type closely attached to the hilum of the liver, which was misdiagnosed clinically and radiologically as a Hydatid cyst
Abdominal ultrasound was performed showing a large cyst in the liver measuring 12 × 7 cm in size, which was diagnosed as a hydatid liver cyst
Summary
Most of the adrenal cysts are asymptomatic and heterogeneous in nature [1, 2]. Big cysts can present incidentally, or due to the mass effect compressing on adjacent structures causing abdominal or flank pain [3]. With the improvement in imaging modalities and increase in their usage, adrenal cysts are being detected more frequently as incidental lesions [3]. In a literature review in 1999, Neri and Nance described that 34% of all adrenal cysts are discovered incidentally, and 39% present with abdominal pain or due to mass compression effect [5]. Adrenal cysts can present unilaterally or bilaterally. That the majority of the adrenal cysts are unilateral, 8%–15% are bilateral without side predominance [7]. We present a true adrenal cyst of endothelial type closely attached to the hilum of the liver, which was misdiagnosed clinically and radiologically as a Hydatid cyst
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