Introduction Hydatid disease is endemic in farming areas but occurs worldwide. The most common site of disease is liver. Hydatid disease of the spleen is a rare condition. Worldwide incidence of splenic hydatid is 0.5–4%. Surgery is the mainstay of treatment. The standard treatment is open total or partial splenectomy. Presentation of case A 28 year-old female patient was referred to our institution, after coincidental sonography finding. On abdominal examination, there was no sensitization, and there was no resistance or rebound. Ultrasound showed an enlarge spleen; an abdominal CT confirmed the presence of a splenic cyst at the lower pole of the spleen of 7 cm in diameter, no other organ involvement. The biological confirmation was made by indirect hemagglutination. Spleen-sparing surgery was performed. Macroscopic and microscopic examination of the specimen confirmed Hydatid cyst. The patient was discharged from hospital on the seventh postoperative day with a prescription for albendazole (2 × 400 mg/day) for three months. Discussion and conclusion The rarity of primary splenic hydatid disease poses a diagnostic challenge for clinicians, the disease should be considered in differential in every patient in endemic areas with cystic lesion of spleen until proved otherwise, it may be detected incidentally or present with non-specific complaints, preservation surgery should always be tried to avoid post splenectomy infection, especially in young patients.
Hydatid cyst is a zoonosis caused mainly by the larval stage of the cestode worm Echinococcus granulosus, hydatidosis is frequently found in sheep-raising countries such as the Mediterranean countries. The disease usually involves the liver (75%) and lung (15%). We describe a case of hydatid cyst of the psoas muscle; we are reporting this case because of its rarity and its difficulty to diagnose clinically. A 16 –year-old female from rural setting, presented to the department of surgery of our institution, with complaints of right flank pain. On abdominal examination, there was sensitization in the right lower quadrant, and there was no resistance or rebound. On abdominal ultrasonography, a 6 × 6 cm hydatid cyst was detected within the psoas muscle, which was confirmed by positive indirect hemagglutination, no other organ involvement has been detected by CT scan. A pericystectomy was performed; the intact intramuscular cyst was completely excised, Macroscopic and microscopic examination of the specimen confirmed Hydatid cyst. The patient was discharged from hospital on the fifth postoperative day. No local recurrence was detected during postoperative follow up. Hydatidosis should be considered in cases of a symptomatic swelling in musculoskeletal system without history of trauma and irradiation when patients belong to endemic area. Cyst or complex retroperitoneal tumors, cold or pyogenic abscess of psoas muscle are considered in differential diagnosis. In the light of this case and the literature data, we discuss the diagnosis and the therapeutic problems raised by hydatid cyst of the psoas muscle.
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