U.S., Sept. 17 -- ClinicalTrials.gov registry received information related to the study (NCT07176598) titled 'Rare Case of Misdiagnosed Primary Intramuscular Hydatid Cyst of the Deltoid Muscle' on Sept. 10.
Brief Summary: This case report describes a rare parasitic cyst called a hydatid cyst located in the shoulder muscle (deltoid) of a 29-year-old male. The patient initially presented with a painless, gradually enlarging swelling over the left shoulder. It was misdiagnosed as a synovial cyst and treated with corticosteroids, which caused local inflammation and purulent discharge. Blood tests for Echinococcus antibodies were negative. Ultrasound and MRI revealed a well-defined intramuscular cyst confined to the deltoid muscle. Surgical exc...