Disentangling Sources of Momentum Fluctuations in Xe+Xe and Pb+Pb Collisions with the ATLAS Detector.

High-energy nuclear collisions create a quark-gluon plasma, whose initial condition and subsequent expansion vary from event to event, impacting the distribution of the eventwise average transverse momentum [P([p_{T}])]. Disentangling the contributions from fluctuations in the nuclear overlap size (geometrical component) and other sources at a fixed size (intrinsic component) remains a challenge. This problem is addressed by measuring the mean, variance, and skewness of P([p_{T}]) in ^{208}Pb+^{208}Pb and ^{129}Xe+^{129}Xe collisions at sqrt[s_{NN}]=5.

A Case of Primary Lung Adenocarcinoma With Recurrent Brain Metastasis due to Transformation to Small Cell Carcinoma During Adjuvant Atezolizumab Therapy.

Histologic transformation from non-small cell to small cell lung cancer (SCLC) is a resistance mechanism to immune checkpoint inhibitors. We report herein a case of lung adenocarcinoma who developed liver and brain metastases during adjuvant atezolizumab therapy. The patient underwent a craniotomy to resect a brain metastasis, which was pathologically diagnosed as SCLC.

Pylephlebitis Secondary to Diverticulitis Diagnosed by Abdominal Ultrasound and Computed Tomography.

Pylephlebitis is a rare infection, characterized by non-specific symptoms such as abdominal pain, that often leads to delayed diagnosis, yet it is a severe infection with a high mortality rate. Imaging studies are essential for diagnosis, and contrast-enhanced abdominal CT and abdominal ultrasound are commonly performed. A 51-year-old male was admitted to the hospital with fever and shock.

Rare Case of Fusobacterium necrophorum Bacteremia and Pleural Empyema Originating from a Burn Ulcer in a 16-Year-Old Female Patient.

BACKGROUND Most Fusobacterium necrophorum infections originate in the head and neck region. Infections originating from sites other than the head and neck are rare but are more common in older than in younger adults and have a higher mortality rate than that of infections originating from the head and neck region. CASE REPORT We present the case of a previously healthy 16-year-old female patient who developed bacteremia and pleural effusions with a burn ulcer on the lower leg but had no abnormality in the head and neck region.