Primary hydatid cyst of the root of the thigh: a case report and review of the literature

Abstract

Hydatid disease of bone is a rare event, and it is characterized by a high diagnostic and therapeutic complexity. We report a case of primary hydatidosis of the proximal thigh involving both the soft tissues and the proximal femur in a 59-year-old man. It has been possible to establish the diagnosis only 8 years after the appearance of the first symptoms (painful swelling over the root of the left thigh), when the patient came to our institution after several investigations.

Infective myositis

“…Though imaging is useful, confirmatory diagnosis is by histopathology, which reveals cysts with outer multilaminar (ectocyst) wall and inner germinal layer (1). Aspirated cyst fluid show protoscolices, rostellar hooks, antigens or DNA (79).…”

Hydatid cyst of the thigh: A case report with literature review

“…The current case reported positive history of animal contact without fulfilling any preventive measure. Up to date, 17 cases of HD of the thigh have been reported in the literature [ 2 , [8] , [9] , [10] , [11] , [12] , [13] , [14] , [15] , [16] , [17] , [18] , [19] , [20] , [21] , [22] , [23] ]. The age ranged between 8 to 61 years [ 12 , 21 ].…”

“…The unique character of HD in any area of the body is that the worm can stay silently for a long period of time (months to decades) without causing specific symptom. Either it is diagnosed incidentally or causing pressure symptoms making the victim seek medical advice [ 13 ]. The HC in this case resulted in swelling and disfigurement while the pelvic ones induced non-specific abdominal pain.…”

Parasitic infections and myositis

“…Diagnosis is confirmed with a biopsy showing the multilaminar cyst membrane characteristic of this infection (Thursky and Torresi 2001;Vicidomini et al 2007). Aspirated cyst fluid can be examined for protoscolices, rostellar hooks, Echinococcus antigens, or DNA (Garagnani et al 2008).…”

“…The use of the dot-ELISA rapid test has been reported to be a favorable test with sensitivity and specificity greater than 90% (Pottinger et al 2010). X-rays show calcified Echinococcus cyst/s within the soft tissues (Garagnani et al 2008). Ultrasonography typically demonstrates a hypoechoic lesion with smooth contours and roughly spherical shape.…”