Bowel subocclusion due to Anisakis

Acute Small-Bowel Obstruction From Intestinal Anisakiasis After the Ingestion of Raw Clams; Documenting a New Method of Marine-to-Human Parasitic Transmission

“…Intestinal anisakiasis symptoms typically develop later (within 5–7 days) than the gastric form of the disease (<1 day). Yet reported intervals from ingestion to symptoms vary widely with intestinal anisakiasis (1–37 days) [ 1 – 18 ] (Table 1) . Sites of involvement typically involve the terminal ileum, but other parts of the small bowel, colon, and appendix have been reported [ 1 – 18 , 20 ].…”

“…Yet reported intervals from ingestion to symptoms vary widely with intestinal anisakiasis (1–37 days) [ 1 – 18 ] (Table 1) . Sites of involvement typically involve the terminal ileum, but other parts of the small bowel, colon, and appendix have been reported [ 1 – 18 , 20 ]. Symptoms relate to the intense, mostly eosinophilic inflammatory response that occurs within the bowel wall at sites of larval invasion [ 2 , 4 , 7 , 10 – 15 ].…”

“…Of note, bowel intussusception with its typical associated radiographic findings has been documented as well [ 1 , 2 , 5 , 13 ]. Interestingly, most singular reported cases of intestinal anisakiasis resulted in need of laparotomy and bowel resection (Table 1 ) [ 1 – 18 ], yet a recent Japanese inpatient database review of intestinal anisakiasis (201 cases) found that laparotomy was needed in only 14 cases (7.0%) [ 19 ]. Thus, indications for surgical intervention appear appropriately individualized.…”

Intestinal Eosinophilic: Anisakiasis

“…These crustaceans are eaten by a fish or cephalopods such as octopus or squid, staying the nematode in the gut wall, into the muscle or under the skin. Humans become infected by eating raw or undercooked fish [1][2][3][4][5][6][7][8]. Three species of Anisakis larvae are pathogenic to humans: Anisakis simplex, Pseudoterranova decipiens, and Contracaecum.…”

“…Anisakiasis is a parasitic disease in which the human is an accidental host, due to the intake of raw or lightly cooked fish or squid that is infected by the larvae dematodes, family Anisakidae (Anisakis simplex, Anisakis physeteris, Pseudoterranova decipiens) [1][2][3][4][5]. The clinical manifestations are varied, which can be asymptomatic patients with gastrointestinal symptoms or allergic type [6][7][8][9].…”