Reactive axillary lymph nodes after COVID-19 mRNA vaccination: comparison of mRNA vs. attenuated whole-virus vaccines.

Objective: To compare the incidence and natural course of reactive axillary lymph nodes (RAL) between mRNA and attenuated whole-virus vaccines using Deauville criteria.

Methods: In this multi-institutional PET-CT study comprising multiple vaccine types (Pfizer-BioNTech/Comirnaty, Moderna/Spikevax, Sinovac/CoronaVac and Janssen vaccines), we evaluated the incidence and natural course of RAL in a large cohort of oncological patients utilizing a standardized Deauville scaling system (n=522; 293 Female, Deauville 3-5 positive for RAL). Univariate and multivariate analyses were conducted to evaluate the predictive value of clinical parameters (absolute neutrophil count [ANC], platelets, age, sex, tumor type, and vaccine-to-PET interval) for PET positivity.

Ipsilateral Malignant Axillary Lymphadenopathy and Contralateral Reactive Lymph Nodes in a COVID-19 Vaccine Recipient With Breast Cancer.

Vaccine-related axillary nodal enlargement is a common benign condition that many mRNA vaccine receivers experience. However, a false attribution of axillary swelling to vaccination may result in delay in cancer care and potential disease progression, particularly in breast cancer patients presenting with ipsilateral axillary lymphadenopathy. We report the case of a 41-year-old pre-menopausal female who presented with suspicious axillary nodal enlargement and a right breast lump (triple-negative invasive ductal carcinoma) after recent administration of the second dose of Moderna mRNA coronavirus disease 2019 (COVID-19) vaccine.

Association of COVID-19 mRNA Vaccine With Ipsilateral Axillary Lymph Node Reactivity on Imaging.

This cohort study examines ipsilateral axillary nodal reactivity seen on positron emission tomographic and computed tomographic imaging after intramuscular administration of the coronavirus 2019 mRNA vaccines.

Warfarin-associated intracranial haemorrhage in pregnant woman with double mechanical valve replacement: a case presentation.

Background: Management of warfarin-associated major haemorrhage in prosthetic valve diseases is difficult as there is a fine line between haemorrhage and thrombosis. An individual's propensity towards thrombosis, such as pregnancy, makes this situation even more complicated. Cases like these are very rare in the literature.

Contribution of Sonoelastography to Diagnosis in Distinguishing Benign and Malignant Breast Masses.

Objectives: The purpose of this study was to investigate the contribution of strain index measurements and a 5-point scoring method to diagnostic accuracy in differential diagnosis of benign and malignant solid breast masses and to compare the diagnostic performances of both methods.

Methods: Eighty female patients were included in this study. Before biopsy, all patients underwent ultrasound (US) and sonoelastographic examinations.

Utility of the Vidian Canal in Endoscopic Skull Base Surgery: Detailed Anatomy and Relationship to the Internal Carotid Artery.

Objective: To investigate key anatomic features of the vidian canal that have a critical role in planning and performing endoscopic skull base surgeries.

Methods: We reviewed skull base computed tomographic images of 640 consecutive subjects. Studies were analyzed in axial, coronal and sagittal planes.

Arachnoid cysts with spontaneous intracystic hemorrhage and associated subdural hematoma: Report of management and follow-up of 2 cases.

Arachnoid cysts are one of the most frequently encountered intracranial space-occupying lesions in daily neurosurgery and neuroradiology practice. Majority of arachnoid cysts, particularly those of smaller sizes, have a benign uneventful lifetime course. Certain symptoms may indicate serious complications related to underlying arachnoid cysts.

Accessory liver within the thoracic cavity.

Ectopic intrathoracic liver tissue is extremely rare. Studies are mainly limited to case reports. In the vast majority of reported cases, a diagnosis of intrathoracic liver tissue was made either after a thoracic surgery or during a postmortem examination.

A Rare Complication of Percutaneous Nephrolithotomy: Colonic Lumbar Hernia.

Percutaneous nephrolithotomy has a success rate of 90%; however, its overall complication rate is approximately 83%, including urinary extravasation, bleeding necessitating transfusion, and postoperative fever. Septicemia, colonic and pleural injury are rare major complications. Neighboring organ injury, especially colonic injury, is frequently seen during tract dilatation procedure.

Congenital high airway obstruction syndrome (CHAOS) associated with cervical myelomeningocele.

Congenital high airway obstruction syndrome (CHAOS) is a rare and potentially fatal entity resulting from complete or near complete developmental airway obstruction. Although most reported cases of CHAOS are sporadic, the condition may also be associated with certain syndromes and a variety of cervical masses. Meningocele and myelomeningocele have not yet been reported in association with CHAOS.

Ultrasound as a screening tool in the follow-up of asymptomatic congenital cystic adenomatoid malformation.

Congenital cystic adenomatoid malformation accounts for the vast majority of congenital cystic lung pathologies. The clinical spectrum of congenital cystic adenomatoid malformation is wide and ranges from silent incidental lesions to severe congenital respiratory distress or stillbirths. Management of clinically silent lesions is still a matter of debate, with conservative follow-up being a popular approach during the last decade.

Detection of incidental pulmonary embolism with multi-slice computed tomography in cancer patients.

The aim of this study is to show the frequency of incidentally found (pulmonary thromboembolism) PTE in oncological patients and evaluate dispersion of incidents in terms of underlying primary tumor and seek risk factors associated with incidental PTE. Among one thousand oncology patients, 46 (4.6%) individuals found to have incidental PTE.

Bilateral cleft foot: Radiographic and prenatal ultrasound features of two siblings with a review of literature.

Cleft foot deformity, also known as ectrodactyly, is a rare congenital developmental defect of extremities caused by malformation in continuity of apical ectoderm. The syndrome typically involves malformation or absence of the central rays of the feet and is characterized by deformities like median deep clefts of distal extremities. Routine examination of feet during second-trimester ultrasound (US) may increase the detection rates of foot malformations.

Acute Pancreatitis and Gastroduodenal Intussusception Induced by an Underlying Gastric Gastrointestinal Stromal Tumor: A Case Report.

Gastrointestinal stromal tumors (GISTs) are rare tumors of the gastrointestinal system and comprise only 1% to 3% of all gastrointestinal tract tumors, with the majority of them arising in the stomach. In this report, we present the unique findings of a case of gastroduodenal intussusception caused by an underlying gastric GIST and complicated with severe acute pancreatitis.

Echogenic splenic lesions in a child with type B Niemann-Pick disease.

We report the case of a 15-year-old boy with Niemann-Pick disease type B with characteristic sonographic findings of splenic involvement. There were multiple well-defined echogenic nodular lesions within the spleen parenchyma, and these lesions were surrounded by ring-like blood flow on color Doppler imaging. Most of the patients with Niemann-Pick disease type B are children and they undergo repeated imaging studies.