Ascariasis, a review

Abstract

Ascariasis no longer widespread within Europe and so experience in diagnosis and treatment is limited for many specialists. On the other hand, clinicians face increasing numbers of migrants from high prevalence countries and are therefore, challenged to update in this field of infectious diseases. Here we present imaging features and current knowledge of this infection.

Zoonoses Associated with Geohelminthiases

“…Approximately 122 million cases of morbidity with serious health consequences occur each year. Ascariasis is still considered a neglected tropical disease in spite of its effects (Schindler-Piontek et al 2022). Conversely, A. suum is a common parasitic nematode that infects pigs and its high prevalence rates have been found in pig populations.…”

“…In the small intestine, A. suum larvae undergo another molt to become L4 stage larvae. By day 24 after infection, the larvae have reached sexual maturity and have undergone another molt to become L5 stage larvae (Schindler-Piontek et al 2022). In both pigs and humans, the hepato-tracheal migration takes place 10-14 days after egg ingestion.…”

“…Embryonated eggs can survive in the soil for up to 15 years before being expelled in feces. The larvae go through two molts within the egg during embryonation (Schindler-Piontek et al 2022). As one of the most widespread parasitic infections worldwide, ascariasis is expected to infect 807 million people by 2020.…”

Comments on and Illustrations of the EFSUMB CEUS Guidelines: Transabdominal and Endoscopic Ultrasound Features of Intrapancreatic Metastases and the Role of Multiparametric Imaging and EUS-Guided Sampling in Rare Pancreatic Tumors

“…CH-EUS is recommended for the characterization of pancreatic solid masses [4][5][6]. In recent years, conventional ultrasound (US) and CEUS features of less common FPL have also been described in detail, including autoimmune pancreatitis [7][8][9][10], pancreatic tuberculosis [11,12], pancreatic ascariasis [13,14], and pancreatic hydatid cysts [15,16]. Nearly 90% of pancreatic neoplasms in adults are represented by invasive PDAC and related subtypes, according to the WHO classification from 2019.…”

Síndrome de Loeffler, ¿más frecuente de lo que pensamos?: un caso asociado a Ascaris lumbricoides y Strongyloides stercolaris

“…Entre los helmintos, Ascaris lumbricoides es el parásito que con mayor frecuencia se ha asociado a Síndrome de Loeffler [2,3], seguramente secundario a que es uno de los parásitos con mayor incidencia a nivel mundial. Asimis mo, se han descrito casos por uncinarias como Necator americanus y Ancylostoma duodenale [4,5], Strongiloides stercolaris, larva migrans visceral y filarias.…”