WHO global research priorities for antimicrobial resistance in human health

The WHO research agenda for antimicrobial resistance (AMR) in human health has identified 40 research priorities to be addressed by the year 2030. These priorities focus on bacterial and fungal pathogens of crucial importance in addressing AMR, including drug-resistant pathogens causing tuberculosis. These research priorities encompass the entire people-centred journey, covering prevention, diagnosis, and treatment of antimicrobial-resistant infections, in addition to addressing the overarching knowledge gaps in AMR epidemiology, burden and drivers, policies and regulations, and awareness and education. The research priorities were identified through a multistage process, starting with a comprehensive scoping review of knowledge gaps, with expert inputs gathered through a survey and open call. The priority setting involved a rigorous modified Child Health and Nutrition Research Initiative approach, ensuring global representation and applicability of the findings. The ultimate goal of this research agenda is to encourage research and investment in the generation of evidence to better understand AMR dynamics and facilitate policy translation for reducing the burden and consequences of AMR

Epiphyseal Primary Diffuse Large B-Cell Lymphoma of Bone

Primary lymphoma of bone (PLB) confined to the epiphysis has only been described in four other patients. Due to the rarity of this entity, diagnosis has often been delayed, leading to mismanagement with adverse clinical consequences. We report a fifth case of primary epiphyseal lymphoma of bone located in the left distal medial femoral epiphysis of a 13-year-old boy. Radiographic and histologic features of PLB are discussed, along with a review of the literature and pitfalls of misdiagnosis. The patient initially presented with six months of progressive left knee pain with an associated loss of passive range of motion. Imaging revealed a mixed radiolucent lesion within the left distal medial femoral epiphysis with cortical breakthrough. A core biopsy was performed revealing a blue round cell tumor. Thanks to modern immunohistochemistry techniques, a diagnosis of primary lymphoma of bone was quickly made. The patient thus avoided further surgical intervention and received the appropriate treatment of chemotherapy, with subsequent rapid resolution of the lesion. This case highlights the necessity of including primary lymphoma of bone in all epiphyseal lesion differential diagnoses, especially in the pediatric patient population when aggressive radiographic features are present

Intussusception in Childhood Acute T Cell Lymphoblastic Leukemia: An Unusual Complication - Report of 2 Cases.

Abstract Clinically significant gastrointestinal complications in children with acute lymphoblastic leukemia (ALL) have been reported. However, intussusception is a very rare complication. In one study of 286 children with ALL gastrointestinal complications occurred in 5.6% of patients with intussusception seen in only 0.3% of patients. We describe two cases of intussusception during chemotherapy for T-cell leukemia. Patient #1 was an 8 year old girl on chemotherapy for T-cell ALL. Around week 9 following POG 9404 protocol of consolidation chemotherapy, patient presented with severe abdominal pain and vomiting, and had marked, diffuse tenderness of the abdomen with guarding and hypo-active bowel sounds. Abdominal radiograph showed thickening of the descending colon; abdominal sonogram was normal; abdominal computed tomography (CT) scan however, revealed a soft tissue and fluid-filled mass extending from the cecum to the descending colon. These findings were consistent with a large bowel intussusception, which was successfully reduced with a barium enema. Patient #2 was a 15 year old male receiving chemotherapy for T-cell ALL following POG 9404 protocol. At week 14 of consolidation chemotherapy, patient presented with a 2 day history of nausea and colicky peri-umbilical and right lower quadrant abdominal pain. An abdominal CT scan revealed an ileocolic intussusception without bowel obstruction and mild wall thickening of the cecum. Barium enema resulted in successful reduction of the intussusception. Interestingly, both our patients were treated with high dose methotrexate 5gm/m2 during this time period and both experienced delayed excretion of methotrexate. To our knowledge, there is no known reported association between high dose methotrexate and intussusception. We speculate that the two could be related. The increased use of high dose methotrexate therapy in T-cell ALL may result in a higher incidence of intussusception in this population. Although, intussusception in ALL is a very rare complication, awareness of this entity and early recognition with radiological intervention may prevent unnecessary surgery and the associated morbidity and mortality in these patients.</jats:p