The imaging appearances of hydatid disease at some unusual sites

Abstract

On reviewing our cases of hydatid disease seen over a period of 20 years (1978-1998), we encountered a number of unusual radiological appearances and sites, which are demonstrated in this pictorial review. We briefly discuss the pathology of hydatid disease and its complications.

Primary spinal hydatid cyst in a patient with acquired immunodeficiency syndrome

“…Two-layered wall, water-lily sign are published MRI findings of cyst hydatid disease but unfortunately none of these findings were seen in our case [5][6][7]. Hydatid disease may have appearance similar to abscesses, hematomas, metastases or solid soft tissue tumors such as myxoid liposarcoma and desmoid [8][9][10][11][12][13][14]. The establishment of an accurate preoperative diagnosis in this condition is of paramount importance so that one can avoid percutaneous needle or open biopsy, as these procedures can lead to inadvertent cyst rupture with the consequent risk of anaphylaxis and dissemination to other organs [14].…”

Gluteal region musculoskeletal hydatid cyst: Case report and review of literature

“…Other manifestations are found in 15% of the patients, with the skeletal system making up for l-4% of all cases [3]. Voluntary muscles are a very rare site of infection, counting for <1% of total [4]. Hydatid cyst of muscle is not commonly encountered, as the presence of lactic acid creates an unfavorable milieu for growth [5].…”

Queer localizations of primary hydatid disease: experience from a single institute

“…3,4 Imaging modalities such as ultrasonography, CT scan, and MRI have been the methods of choice, especially the latter, which has been the diagnostic method of choice for the preoperative diagnosis of the Hydatid cyst in most unusual locations. 5 In our study, ultrasonography was done in 16 cases and proved diagnostic in only 11 cases and CECT scan was done in 13 (65%) cases, It was 100% diagnostic. Three patients of pulmonary Hydatid disease in the present study presented with chest pain, two patients presented with cough with expectoration, and one patient had minimal haemoptysis.…”