A Case of Ultrasound Diagnosis of Intestinal Ascariasis Clinically Simulating Intussusception

Niang, Ibrahima; Kayembe, Axel; Diop, Cheikh Tacko; Ly, Mamadou; Niang, Fallou Galass; Ndong, Abdourahmane; Dia, Serigne Ahma Mbacké; Diop, Abdoulaye Dione; Ba, Sokhna

doi:10.4236/oalib.1106840

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“…During the gastrointestinal phase, digestive signs are more common and may mimic acute abdominal emergency. 14 However, they can be responsible for emergency abdominal surgery due to digestive or biliary obstruction. 6,7 In fact, the adult worms roam the digestive system and this is how roundworms can end up in the appendicular lumen.…”

Section: Discussionmentioning

confidence: 99%

“…These ultrasound aspects are described as: thick echogenic strip with central anechoic tube; multiple linear or curvilinear echogenic strips without acoustic shadowing; “parallel lines”; “railway track” sign; “3-line”or “4-line” sign on longitudinal scan and a “doughnut” or “target” sign and “bull’s eye” appearances on transverse scan. 14,17 It is also important to note that on ultrasound, especially on axial slices, the appendix is somewhat similar to Ascaris lumbricoides , both giving a target appearance. 18 So, it is important to know the difference by highlighting the attachment of the appendix to its base in the cecum.…”

Section: Discussionmentioning

confidence: 99%

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“Worm within worm”: acute appendicitis containing an adult Ascaris lumbricoïdes

et al. 2022

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Appendicitis is the first aetiology for abdominal surgical emergency. Ascariasis is the most common helminth infection in tropical countries where it is endemic. The ability of intestinal helminths to wander through the digestive system means that it can end up in the appendix lumen and lead to appendicitis by luminal obstruction. However, this presentation is still rarely described in the literature. In fact, most of the diagnoses of roundworm associated with appendicitis are made retrospectively by the discovery of its eggs on the pathological examination of an appendectomy specimen. We report the case of a 7-year-old patient living in a tropical area who consulted for acute right lower quadrant pain. The ultrasound suspected the diagnosis of appendicitis and also revealed multiple intestinal worms including one in contact with the inflamed appendix. Surgical exploration confirmed appendicitis associated with roundworm partly in the appendicular lumen through a perforation.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%