WITHDRAWN: Bacteroides thetaiotaomicron necrotizing fasciitis as presentation of colorectal cancer, with subsequent cutaneous exteriorization.

Ahead of Print article withdrawn by publisher. An 80-year-old woman presented necrotizing fasciitis on the right flank, requiring debridement. Tomography reported ascending colon neoplasm fistulized to the skin. Colonoscopy confirms adenocarcinoma. Intervention postponed due to rejection of surgery during the pandemic and SARS-COV-2 infection, producing progression with exteriorization of the neoplasm. A bloc laparotomic right hemicolectomy was performed (pT4bN0).

A review of the diagnosis and management of liver hydatid cyst.

Hydatidosis is a zoonosis caused by Echinococcus in the larval stage. Humans are accidental intermediary hosts where cystic lesions develop, primarily in the liver and the lungs. It is usually asymptomatic, hence it often represents an incidental finding. Symptoms result from cyst expansion and/or host inflammatory reaction. Hepatomegaly is the most common sign. Hydatidosis induces no specific changes in lab tests but immunodiagnostics are available that may complement its study, with antibody detection being the modality of choice. While ultrasound is the main diagnostic technique, tomography offers more accurate information regarding both characteristics and anatomical relations. A number of therapy options are presently available. Treatment with albendazole, whether combined or not with praziquantel, is useful for smaller, uncomplicated cysts (< 5 cm). Only 30 % of cysts disappear with medical treatment alone. Surgery is indicated for bigger liver cysts (> 10 cm), and cysts at risk of rupture and/or complicated cysts. The laparoscopic approach is scarcely widespread. The radical technique (total cystopericystectomy) is preferable because of its lower risk for postoperative abdominal infection, biliary fistula, and overall morbidity. Conservative techniques are appropriate in endemic areas where surgery is performed by nonspecialist surgeons. PAIR (puncture-aspiration-injection-reaspiration) is an innovative technique representing an alternative to surgery. It is indicated for inoperable cases and/or patients who reject surgery, for recurrence after surgery, and for lack of response to medical treatment. Active surveillance without treatment may be indicated for quiescent or inactive, uncomplicated liver cysts.

Laparoscopic treatment in gastrointestinal bleeding due to Dieulafoy's lesion.

Dieulafoy's lesion is a rare cause of gastrointestinal bleeding. Produced by the erosion of aberrant vessels in the submucosa, usually at the gastric level. The jejunal location is unusual. Its diagnosis is complicated by the intermittent characteristic of bleeding, initially recommending the endoscopic approach. It is an unusual entity that must be taken into account in the differential diagnosis of gastrointestinal bleeding. Massive bleeding can occur, compromising the life of the patient. Initial endoscopic/radiological management is recommended, reserving the surgical approach for refractory bleeding for less invasive treatments.

La lesión de Dieulafoy es una causa infrecuente de hemorragia digestiva, producida por la erosión de vasos aberrantes en la submucosa, habitualmente gástrica. La localización yeyunal es inusual. Su diagnóstico es complicado por la característica intermitente del sangrado, recomendándose inicialmente el abordaje endoscópico. Se trata de una situación excepcional que debe tenerse en cuenta en el diagnóstico diferencial de la hemorragia digestiva. Puede producirse una hemorragia masiva que comprometa la vida del paciente. Es recomendable un manejo endoscópico/radiológico inicial; el abordaje quirúrgico se reserva para hemorragias refractarias a los tratamientos menos invasivos.