Outcomes of event-free survival in patients with Wilms tumor undergoing preoperative chemotherapy. Analysis of lymph-node yield in a single-center cohort.

Introduction: The clinical value of lymph node sampling in Wilms tumor (WT) lies in its ability to accurately determine lymph node (LN) involvement. LN yield (LNY) is used as a valuable tool to measure LN retrieval, and a minimum of 6 LNs is one of the current recommendations. In patients who are managed with the SIOP strategy, preoperative chemotherapy decreases the retrieval of LN during surgery resulting in lower LNY values.

[Evaluation and treatment of prosthetic hip dislocation].

Hip dislocation is the second most common complication of total hip arthroplasty followed by aseptic loosening, is the second most common complication of THA presenting with an incidence of 2.4-3.9% in primary procedures and an incidence of up to 28% in revision surgeries.

[Giant duodenal diverticula with heterotopic gastric mucosa. Its demonstration with technetium 99].

The duodenal diverticulum, except for occasional findings, are diagnosed by their complications, these are found in 10% of the cases and they are: 1) diverticulitis 2) haemorrhage 3) mechanic disturbances 4) perforation 5) obstruction 6) malabsorption syndrome. The case that motivated our communication appeared as a massive haemorrhage, that was medically treated considering the high mortality, rate of the surgical procedures. As the duodenal diverticuli can be cause of acute or chronic digestive haemorrhage, and this is frequently due to the erosion produced, by the heterotopic gastric mucosae, we consider that its demonstration with technetium 99 can be a valuable diagnostic method, as has already been demonstrated in other pathologies that present heterotopic mucosae, and as has been demonstrated in our case.