Purpose: We describe a rare case of two simultaneous primary conjunctival melanomas in the same eye that were treated sequentially with both plaque brachytherapy and proton beam radiotherapy following wide surgical excision.
Observations: A 66-year-old male presented with two pigmented lesions that were concerning for conjunctival melanoma. One of the lesions was on the bulbar conjunctiva near the corneal limbus, and the other in the lower fornix.
Background: Head and neck mucosal melanoma (HNMM) is rare and carries a poor prognosis with high rates of disease progression. There is little data regarding the use of adjuvant proton radiation therapy in the management of sinonasal HNMM.
Aims: We performed a retrospective review of patients with nonmetastatic sinonasal HNMM treated with adjuvant proton radiation from 2012 to 2022 at a single academic institution.
Research on incarcerated men indicates low PrEP access even though HIV disproportionately affects them. Intersecting attributes - urban, incarcerated, Black, heterosexual men with substance use diagnoses (SUDs) - improves the odds of HIV transmission/acquisition. It is crucial to determine, among "key populations," who might be eligible to take PrEP.
View Article and Find Full Text PDFObjective: To investigate the predictive value of tumor iodine concentration obtained with dual-energy CT (DECT) for treatment response in patients treated with immune checkpoint inhibitors (ICI).
Materials And Methods: Retrospective single-center study of consecutive metastatic melanoma and renal cell carcinoma (RCC) patients undergoing first-line ICI treatment. The iodine concentration measurement time points include prior to initiation of therapy (baseline [BL]), after initiation (follow-up [FU1]), and either time point nearest to 12 months or at time of progression (final follow-up [FFU]).
Introduction: Renal medullary carcinoma (RMC) is a rare form of renal cell carcinoma (RCC) that is typically associated with a loss of function in SMARCB1 and diagnosis of sickle cell or other hemoglobinopathy. In rare cases, this disease can be seen in patients without hemoglobinopathy and is classified as "SMARCB1-deficient RMC without hemoglobinopathy" or referred to as "RCC unclassified with medullary phenotype" in some of the literature. Platinum-based cytotoxic chemotherapy is currently the recommended first-line treatment for this rare disease.
View Article and Find Full Text PDFBackground: Isolated native tricuspid valve infective endocarditis remains a challenging disease to treat given the large number of patients with substance use disorder. There is limited data on the optimal treatment strategy and the impact of a multidisciplinary endocarditis program on outcomes for this population.
Objectives: To assess the clinical outcomes associated with management of native tricuspid valve infective endocarditis by a multidisciplinary team.
Phys Rev Lett
September 2024
Axions and axionlike particles are strongly motivated dark-matter candidates that are the subject of many current ground based dark-matter searches. We present first results from the Axion Dark-Matter Birefringent Cavity (ADBC) experiment, which is an optical bow-tie cavity probing the axion-induced birefringence of electromagnetic waves. Our experiment is the first optical axion detector that is tunable and quantum noise limited, making it sensitive to a wide range of axion masses.
View Article and Find Full Text PDFMetastatic renal cell carcinoma (RCC) can present with oligometastatic disease and/or develop oligoprogression following systemic therapy. Cytoreductive and focal metastasis-directed therapy options include resection, stereotactic ablative radiation and thermal ablation. Aggressive focal therapy may allow delay in initiation of or modification to systemic therapy and improve clinical outcomes.
View Article and Find Full Text PDFPurpose: Merkel cell carcinoma (MCC) is an aggressive skin cancer with a 40% recurrence rate, lacking effective prognostic biomarkers and surveillance methods. This prospective, multicenter, observational study aimed to evaluate circulating tumor DNA (ctDNA) as a biomarker for detecting MCC recurrence.
Methods: Plasma samples, clinical data, and imaging results were collected from 319 patients.
Background: The United States envisions a 90% reduction in HIV infections by 2030. However, the COVID-19 pandemic disrupted the HIV continuum and disproportionately affected access to social and health services for people at the highest vulnerability. This study shows how stakeholders in the State of Michigan handled disruptions and their key recommendations.
View Article and Find Full Text PDFBackground: Optimal duration of treatment (DoT) with immune checkpoint inhibitors (ICI) in metastatic cancers remains unclear. Many patients, especially those without radiologic complete remission, develop progressive disease after ICI discontinuation. Extending DoT with ICI may potentially improve efficacy outcomes but presents major logistical and cost challenges with standard frequency dosing (SFD).
View Article and Find Full Text PDFLocalized renal cell carcinoma is primarily managed surgically, but this disease commonly presents in highly comorbid patients who are poor operative candidates. Less invasive techniques, such as cryoablation and radiofrequency ablation, are effective, but require percutaneous or laparoscopic access, while generally being limited to cT1a tumors without proximity to the renal pelvis or ureter. Active surveillance is another management option for small renal masses, but many patients desire treatment or are poor candidates for active surveillance.
View Article and Find Full Text PDFInjectable cabotegravir and rilpivirine (CAB/RPV), administered bimonthly by a medical provider, is convenient and improves privacy and medication management. One year after approval, myriad implementation barriers threaten the access and sustainability of this life-saving innovation: (1) eligibility issues (viral suppression, drug resistance, and failed oral regimens); (2) injection requires medical provider and transportation to facility; (3) strict medication adherence; (4) life challenges-mental health, homelessness, joblessness; and (5) lack of insurance and high cost. Universal implementation of CAB/RPV calls for social, human, and health organizations to partner and provide HIV continuum of care and prevention services to facilitate CAB/RPV access and maintenance and for transparent health insurance billing practices to abate uncertainty concerning CAB/RPV's classification as a pharmaceutical or medical benefit and related cost implications.
View Article and Find Full Text PDFBackground: Melanoma survival literature predominantly represents patients >65 years of age. Study of younger patients may reveal potential age-group-specific differences in survival outcome.
Objective: Identify factors associated with differences in melanoma survival in 2 age groups, adolescents and young adults (AYAs; ages 15-39) and older adults (ages 40-64).
Undergrad J Public Health Univ Mich
June 2023
The COVID-19 pandemic saw the disruption of HIV/STI testing services at crucial student-oriented spaces at the University of Michigan, including the Spectrum Center, an LGBTQ+ event and education space, and Wolverine Wellness, a well-being initiative through the University Health Services, alongside massive disruptions to testing seen elsewhere around the country (Zapata et al., 2022). HIV/STI testing resumed in October during the Fall 2021 semester at the University of Michigan at Wolverine Wellness and Spectrum Center.
View Article and Find Full Text PDFPost-transplant lymphoproliferative disorder (PTLD) is a leading cause of cancer death in solid organ transplant recipients (SOTRs). Relapsed or refractory (R/R) PTLD portends a high risk of death and effective management is not well established. CD19-targeted CAR-T cell therapy has been utilized, but the risks and benefits are unknown.
View Article and Find Full Text PDFMerkel cell carcinoma (MCC), an aggressive neuroendocrine skin cancer, has a high rate (20%) of distant metastasis. Within a prospective registry of 582 patients with metastatic MCC (mMCC) diagnosed between 2003-2021, we identified 9 (1.5%) patients who developed cardiac metastatic MCC (mMCC).
View Article and Find Full Text PDFBackground: In patients with multiple myeloma, thrombotic microangiopathy is a rare adverse event associated with proteasome inhibitors, such as bortezomib, carfilzomib, and ixazomib.
Case Presentation: Two patients with multiple myeloma who presented with carfilzomib-induced thrombotic microangiopathy received eculizumab with subsequent stabilization of renal function.
Conclusions: Given the overall rarity of this adverse event, the simultaneous presentation of these 2 cases was unexpected.
Background: Widespread implementation of immune checkpoint inhibitors (ICI) and targeted therapies for metastatic melanoma has led to a decline in melanoma-related mortality but increased healthcare costs. We aimed to determine how healthcare utilization varied by systemic, non-adjuvant melanoma treatment from 2016 to 2020.
Patients And Methods: Adults with presumed stage IV metastatic melanoma receiving systemic therapy from 2016 to 2020 were identified in Optum, a nationwide commercial claims database.
CD4 T cells that recognize tumor antigens are required for immune checkpoint inhibitor efficacy in murine models, but their contributions in human cancer are unclear. We used single-cell RNA sequencing and T cell receptor sequences to identify signatures and functional correlates of tumor-specific CD4 T cells infiltrating human melanoma. Conventional CD4 T cells that recognize tumor neoantigens express CXCL13 and are subdivided into clusters expressing memory and T follicular helper markers, and those expressing cytolytic markers, inhibitory receptors, and IFN-γ.
View Article and Find Full Text PDFChronic immunosuppression in solid organ transplant recipients (SOTRs) leads to an increased risk of a wide variety of cancers. Immune checkpoint inhibitor (ICI) therapy is indicated for many of these; however, the risks and benefits of ICI use in the SOTR population have not been well characterized. We performed a systematic literature review identifying 119 reported cases of ICI use among SOTRs.
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