Taenia solium, the pig tapeworm, produces larvae that cause cysticercosis, a common parasitic disease of the human nervous system including the brain. The disease is native to countries like Central and South America, Eastern Europe, Africa, India, and Indonesia. Cysticercosis is endemic in North India, particularly in Bihar, Uttar Pradesh, and Punjab. Asymptomatic cysts may have a history of trauma, while lower extremity involvement is less common. Isolated muscle involvement typically has no lethal consequences. Two cases, both pediatric, were diagnosed with intramuscular cysticercosis without involvement of the brain parenchyma. The patients received oral prednisolone therapy for seven days, followed by albendazole for 28 days. The swellings decreased in size and no new swellings or symptoms appeared during the two- and four-week follow-ups. At a three-month follow-up, the swellings completely resolved. Neurocysticercosis is a commonly encountered infection of the human central nervous system and one of the major causes of acquired epilepsy globally. Most cases are asymptomatic and go undiagnosed, with the first case likely due to trauma. Diagnosis is often delayed or overlooked due to vague clinical symptoms. Clinical differential diagnoses for intramuscular cysticercosis include lipomas, epidermoid cysts, neuromas, neurofibromas, pseudoganglia, sarcomas, myxomas, pyomyositis, cold abscess, and tuberculous lymphadenitis. High-resolution ultrasound is the most accurate method for diagnosing intramuscular cysticercosis, as it is quick, simple, and less expensive. Muscular cysticercosis sonographic patterns can be categorized into four types: first degree, uneven, irregular, and calcified. Magnetic resonance imaging (MRI) is the most accurate way to diagnose intramuscular cysticercosis, as it can show live scolex, cysts, and degenerating cysts. In every case, there is edema to varied degrees, with fluid-filled lesions without peripheral enhancement visible in early stages and peripheral rim augmentation and perilesional edema observed in later stages.
Keywords: albendazole; children; mri; swelling; tapeworm.
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