The role of exo-miRNA in diagnosis and treatment of cancers, focusing on effective miRNAs in colorectal cancer.

Small extracellular (EV) particles known as exosomes are released by a variety of cell types, including immune system cells, stem cells, and tumor cells. They are regarded as a subgroup of EVs and have a diameter that ranges from 30 to 150 nm. Proteins, lipids, nucleic acids (including RNA and DNA), and different bioactive compounds are among the wide range of biomolecules that make up the cargo of exosomes. Exosomes are crucial for intercellular communication because they let cells share information and signaling chemicals. They are involved in various physiological and pathological processes, including immune responses, tissue regeneration, cancer progression, and neurodegenerative diseases. In conclusion, it is essential to continue research into exosome-based cancer medicines to advance understanding, improve treatment plans, create personalized tactics, ensure safety, and speed up clinical translation.

Real-World Outcomes of Latinx Versus Non-Latinx Patients Treated With First-Line Immunotherapy for Metastatic Renal-Cell Carcinoma.

BACKGROUND: There are limited data regarding the impact of ethnicity among patients receiving immune checkpoint inhibitors. We evaluated real-world outcomes between Latinx and non-Latinx patients with metastatic renal-cell carcinoma (mRCC) treated with first-line nivolumab/ipilimumab within 2 different healthcare settings. METHODS: We performed a retrospective analysis of patients with mRCC who received nivolumab/ipilimumab within the Los Angeles County Department of Health Services (LAC-DHS), a safety-net healthcare system, and the City of Hope Comprehensive Cancer Center (COH), a tertiary oncology center, between January 1, 2015 and December 31, 2021. Progression-free survival (PFS) and overall survival (OS) were determined using the Kaplan-Meier method and covariates were adjusted using multivariate Cox proportional hazards regression. RESULTS: Of 94 patients, 40 patients (43%) were Latinx while the remainder were non-Latinx (44 pts [46%] White, 7 pts [7%] Asian, and 3 pts [3%] Other). Fifty (53%) and 44 (47%) patients received their care at COH and LAC-DHS, respectively. Most Latinx patients (95%) were treated at LAC-DHS, and most non-Latinx patients (89%) were treated at COH. Pooled analysis by ethnicity demonstrated significantly shorter PFS in Latinx versus non-Latinx patients (10.1 vs. 25.2 months, hazard ratios [HR] 3.61, 95% CI 1.96-6.66, P ≤ .01). Multivariate analysis revealed a HR of 3.41 (95% CI 1.31-8.84; P = .01). At a median follow-up of 11.0 months, the median OS was not reached in either arm at the time of data cutoff. CONCLUSION: Latinx patients with mRCC had a shorter PFS treated with frontline nivolumab/ipilimumab compared to their non-Latinx counterparts. No difference was observed in OS although these data were immature. Larger studies are needed to further interrogate the social and economic determinants of ethnicity on clinical outcomes in mRCC.

The potential role of interleukins and interferons in ovarian cancer.

Ovarian cancer poses significant challenges and remains a highly lethal disease with limited treatment options. In the context of ovarian cancer, interleukins (ILs) and interferons (IFNs), important cytokines that play crucial roles in regulating the immune system, have emerged as significant factors influencing its development. This article provides a comprehensive review of the involvement of various ILs, including those from the IL-1 family, IL-2 family, IL-6 family, IL-8 family, IL-10 family, and IL-17 family, in ovarian cancer. The focus is on their impact on tumor growth, metastasis, and their role in evading immune responses within the tumor microenvironment. Additionally, the article conducts an in-depth examination of the oncogenic or antitumor roles of each IL in the context of ovarian cancer pathogenesis and progression. Besides, we elucidated the enhancements in the treatment of ovarian cancer through the utilization of type-I IFN and type-II IFN. Recent research has shed light on the intricate mechanisms through which specific ILs and IFNs contribute to the advancement of the disease. By incorporating recent findings, this review also seeks to inspire further investigations into unexplored mechanisms, fostering ongoing research to develop more effective therapeutic strategies for ovarian cancer. Moreover, through an in-depth analysis of IL- and IFN-associated clinical trials, we have highlighted their promising potential of in the treatment of ovarian cancer. These clinical trials serve to reinforce the significant outlook for utilizing ILs and IFNs as therapeutic agents in combating this disease.

Investigating the Effects of Hydro-alcoholic Urtica Dioica Extract and Retinoic Acid on Follicular Development: An Animal Study.

Background: Urtica dioica (UD), as a natural antioxidant, has positive effects on oocyte maturation. This study aimed to investigate the effects of hydro-alcoholic UD extract and retinoic acid on follicular development in an in vitro fertilization (IVF) condition. Methods: A total of 40 female Wistar rats were randomly divided into 5 groups: group 1 received normal saline, group 2 was given 25 mg/kg retinoic acid, group 3 was administered with 100 mg/kg UD extract, group 4 was treated with retinoic acid plus UD extract, and group 5 received 10 mg/kg olive oil. The histomorphometric parameters were analyzed, including the number of follicles, follicular atrophy, fertilized oocytes, 2-cell embryos, dead embryos, and blastocysts. Results: Retinoic acid caused a significant increase in the primary, preantral, and atretic follicles and a substantial decrease in the corpus luteum compared with the control group (p<0.001). The number of preantral, antral follicles, and corpus luteum was significantly higher in group 3 compared with group 1 (p<0.001). Moreover, coadministration of UD plus retinoic acid (group 4) significantly reduced the atretic follicles (p<0.05). Conclusion: Based on the results, UD herbal extract, as a natural antioxidant agent, could reduce the adverse effects of retinoic acid on oocyte maturation in an IVF condition.

Systemic Therapy for Chondrosarcoma.

OPINION STATEMENT: Clinical trial enrollment should be actively encouraged in all patients diagnosed with advanced, surgically unresectable chondrosarcoma (CS) due to the lack of consensus treatment recommendations. In the absence of an appropriate clinical trial, treatments are determined based on histologic subtype of CS with consideration given to targetable mutations (i.e., IDH1). Conventional CS is inherently resistant to cytotoxic chemotherapy and patients may benefit from antiangiogenic therapy including off-label use of pazopanib. Individuals harboring an IDH1 mutation may derive clinical benefit from ivosidenib, an IDH1 inhibitor. Upon progression and with functional status permitting, alternative options include mTOR inhibitors (sirolimus, temsirolimus) or other tyrosine kinase inhibitors (dasatinib), though no clear sequencing data exists. For dedifferentiated CS, conventional chemotherapies with osteosarcoma-like regimens are upfront options although prospective data is limited with minimal overall benefit. Alternative treatment options include immunotherapy with pembrolizumab or ivosidenib in IDH1-mutant, dedifferentiated CS, but questionable efficacy was observed in small sample sizes with either approach. In mesenchymal CS, treatment with Ewing sarcoma-like chemotherapy regimens may be considered, although data supporting its use is even more limited given its rarity.

Digital interventions to improve adherence to maintenance medication in asthma.

BACKGROUND: Asthma is the most common chronic lung condition worldwide, affecting 334 million adults and children globally. Despite the availability of effective treatment, such as inhaled corticosteroids (ICS), adherence to maintenance medication remains suboptimal. Poor ICS adherence leads to increased asthma symptoms, exacerbations, hospitalisations, and healthcare utilisation. Importantly, suboptimal use of asthma medication is a key contributor to asthma deaths. The impact of digital interventions on adherence and asthma outcomes is unknown. OBJECTIVES: To determine the effectiveness of digital interventions for improving adherence to maintenance treatments in asthma. SEARCH METHODS: We identified trials from the Cochrane Airways Trials Register, which contains studies identified through multiple electronic searches and handsearches of other sources. We also searched trial registries and reference lists of primary studies. We conducted the most recent searches on 1 June 2020, with no restrictions on language of publication. A further search was run in October 2021, but studies were not fully incorporated. SELECTION CRITERIA: We included randomised controlled trials (RCTs) including cluster- and quasi-randomised trials of any duration in any setting, comparing a digital adherence intervention with a non-digital adherence intervention or usual care. We included adults and children with a clinical diagnosis of asthma, receiving maintenance treatment. DATA COLLECTION AND ANALYSIS: We used standard methodological procedures for data collection. We used GRADE to assess quantitative outcomes where data were available. MAIN RESULTS: We included 40 parallel randomised controlled trials (RCTs) involving adults and children with asthma (n = 15,207), of which eight are ongoing studies. Of the included studies, 30 contributed data to at least one meta-analysis. The total number of participants ranged from 18 to 8517 (median 339). Intervention length ranged from two to 104 weeks. Most studies (n = 29) reported adherence to maintenance medication as their primary outcome; other outcomes such as asthma control and quality of life were also commonly reported. Studies had low or unclear risk of selection bias but high risk of performance and detection biases due to inability to blind the participants, personnel, or outcome assessors. A quarter of the studies had high risk of attrition bias and selective outcome reporting. We examined the effect of digital interventions using meta-analysis for the following outcomes: adherence (16 studies); asthma control (16 studies); asthma exacerbations (six studies); unscheduled healthcare utilisation (four studies); lung function (seven studies); and quality of life (10 studies). Pooled results showed that patients receiving digital interventions may have increased adherence (mean difference of 14.66 percentage points, 95% confidence interval (CI) 7.74 to 21.57; low-certainty evidence); this is likely to be clinically significant in those with poor baseline medication adherence. Subgroup analysis by type of intervention was significant (P = 0.001), with better adherence shown with electronic monitoring devices (EMDs) (23 percentage points over control, 95% CI 10.84 to 34.16; seven studies), and with short message services (SMS) (12 percentage points over control, 95% CI 6.22 to 18.03; four studies). No significant subgroup differences were seen for interventions having an in-person component versus fully digital interventions, adherence feedback, one or multiple digital components to the intervention, or participant age. Digital interventions were likely to improve asthma control (standardised mean difference (SMD) 0.31 higher, 95% CI 0.17 to 0.44; moderate-certainty evidence) - a small but likely clinically significant effect. They may reduce asthma exacerbations (risk ratio 0.53, 95% CI 0.32 to 0.91; low-certainty evidence). Digital interventions may result in a slight change in unscheduled healthcare utilisation, although some studies reported no or a worsened effect. School or work absence data could not be included for meta-analysis due to the heterogeneity in reporting and the low number of studies. They may result in little or no difference in lung function (forced expiratory volume in one second (FEV1)): there was an improvement of 3.58% predicted FEV1, 95% CI 1.00% to 6.17%; moderate-certainty evidence); however, this is unlikely to be clinically significant as the FEV1 change is below 12%. Digital interventions likely increase quality of life (SMD 0.26 higher, 95% CI 0.07 to 0.45; moderate-certainty evidence); however, this is a small effect that may not be clinically significant. Acceptability data showed positive attitudes towards digital interventions. There were no data on cost-effectiveness or adverse events. Our confidence in the evidence was reduced by risk of bias and inconsistency. AUTHORS' CONCLUSIONS: Overall, digital interventions may result in a large increase in adherence (low-certainty evidence). There is moderate-certainty evidence that digital adherence interventions likely improve asthma control to a degree that is clinically significant, and likely increase quality of life, but there is little or no improvement in lung function. The review found low-certainty evidence that digital interventions may reduce asthma exacerbations. Subgroup analyses show that EMDs may improve adherence by 23% and SMS interventions by 12%, and interventions with an in-person element and adherence feedback may have greater benefits for asthma control and adherence, respectively. Future studies should include percentage adherence as a routine outcome measure to enable comparison between studies and meta-analysis, and use validated questionnaires to assess adherence and outcomes.

COVID-19, Vaccination, and Conspiracies: A Micro-Level Qualitative Study in Islamabad, Pakistan.

Although vaccination is the only hope to fight against COVID-19, existing vaccine hesitancy is a thought-provoking phenomenon. Significantly, vaccine hesitancy is worsening the situation in Pakistan, leading to an increased number of COVID cases. In this context, this study aims to examine people's perceptions and attitudes towards vaccination. Here the focus was on determining the factors causing disease hesitancy among the masses. The researchers randomly selected a sample of n=17 individuals and gathered data by using telephone interviews and assessed data by using the Interpretive Phenomenological Analysis (IPA) approach. Results revealed that the increased vaccine hesitancy is due to misinformation, conspiracies, myths, and rumors about the side effects of the vaccination. It was also notable that the participants indicated digital media as the primary source of information, showing a potential relationship between social media and misinformation. Also, an intense uncertainty about the healthcare system in Pakistan is hindering the efforts to sustain herd immunity. Thus, due to several myths, rumors, and distrust of the healthcare system, vaccine hesitancy is halting the country's ability to overcome the COVID-19 outbreak. Misinformation is vigorously circulating due to ease of access to different communication platforms, instilling fear of presumed side effects. Hence, the researchers suggest some practical considerations for the government, healthcare workers, and media platforms to counteract the misinformation and increase vaccine acceptance among the masses.

Endovascular versus medical treatment of venous compression syndrome of the iliac vein - a systematic review.

The treatment of non-thrombotic iliac vein lesions (NIVL) remains debatable with many advocating conservative treatments, whilst others offering venous stenting. The objective of this review was to systematically assess the treatment options for symptomatic iliac vein compression syndrome (IVCS) in patients without evidence of thrombotic disease at the time of diagnosis. An online search of published literature looking for randomised controlled trials and observational studies that evaluated the treatment for symptomatic NIVL was performed. Nine studies were included with a total 953 patients of which 782 patients had NIVL. Patency rates ranged between 94.8%-100% in the first month, 88.2%-94.1% in six months and 73.4%-98% in 12 months, in patients with NIVL post stenting. Longer follow-up of up to 5 years shows promising patency rates of 94% in patients with IVCS. Patients with IVCS are likely to benefit from a combination of endovenous treatment at the time of diagnosis including stent placement to maintain lumen patency and prevent recurrent deep venpus thrombosis and/or postthrombotic syndrome.

The Effects of Clinical Experience on Early Career Psychiatrists' Beliefs and Attitudes Towards Older Psychiatric Patients.

Although literature has documented widespread negative and stereotypical attitudes held by healthcare professionals towards the older adults, there is a current paucity of research about the perspective of psychiatrists. We aimed to identify the attitudes of Tunisian early career psychiatrists towards the older adults. This was a cross-sectional study conducted among 71 early career psychiatrists. Data were collected through anonymous online surveys. A series of 4 point Likert-type questions ("strongly agree", "somewhat agree", "somewhat disagree", "strongly disagree") asked participants about their beliefs about older patients, the characteristics of the psychiatric care of an older person and emotions related to caring for older patients. Psychiatrists agreed that the older patient: is frail and vulnerable in 64.8% of cases, does not trust his psychiatrist in 28% of cases, has problems of communication in 36.6% of the cases and shows hostile or aggressive behavior in 5.6% of the cases. A multivariate binary logistic regression analysis found that clinical experience would play an independent role in predicting the following beliefs and attitudes of early career psychiatrists towards older patients: the belief that the older patient often has perceptual disorders that he is fragile and vulnerable, that he often requires polypharmacy, and that his management exposes the psychiatrist to painful emotional experiences. Given the population aging, early career psychiatrists need to be equipped with skills to fulfil significant roles in responding to future health and support needs. Integrating clinical training in psychogeriatrics into the psychiatric curriculum is strongly recommended.

Burden in Tunisian Family Caregivers of Older Patients with Schizophrenia Spectrum and Bipolar Disorders; Associations with Depression, Anxiety, Stress, and Quality of Life.

BACKGROUND: There are very little data on the burden among caregivers of older adults with severe mental diseases. We aimed to assess the perceived burden among caregivers of family members with schizophrenia spectrum and bipolar disorders. METHOD: A cross-sectional study was carried out with 52 older patients with schizophrenia spectrum and bipolar disorders and their family caregivers. Caregivers were assessed with the medical outcome survey short form (SF-36), the Zarit Burden Interview (ZBI) and the Depression Anxiety and Stress scales (DASS-21). RESULTS: Caregivers' mental quality of life was impaired with an average mental score of 59.05. For a threshold value of 17, the level of perceived burden was considered as high for 42.3% of caregivers. After controlling for demographic variables (age and gender) and patients' health-related variables (level of dependency, comorbidities, age onset of illness, number of hospitalizations and duration of clinical remission), caregivers' levels of depression, stress, and SF-36 physical component significantly contributed to their perceived burden. CONCLUSIONS: Certain modifiable risk factors play an inescapable role in increasing the level of burden among caregivers of older patients with serious mental illnesses. CLINICAL IMPLICATIONS: Improving the quality of life and psychological well-being of family caregivers should be considered an integral part of treatment for serious mental illness in older adult patients.

Sleep Quality in Caregivers of Older Patients with Schizophrenia Spectrum and Bipolar Disorders: A Case-Control Study.

OBJECTIVES: Prior literature has documented the global burden of serious mental illnesses. The present study aimed to compare the sleep quality in caregivers of older patients with schizophrenia spectrum and bipolar disorders with control participants who did not serve as caregivers. METHODS: We performed a case-controlled, cross-sectional study among family caregivers of older patients with psychotic disorders in Razi Hospital, Tunisia. Subjective sleep quality was assessed using the Pittsburgh Sleep Quality Index Scale (PSQI). RESULTS: Fifty caregivers of older patients (≥ 60 years) with schizophrenia spectrum and bipolar disorders, and 50 matched controls were enrolled. The three sub-dimensions of the PSQI, namely subjective sleep quality, sleep duration, and sleep efficiency, as well as overall PSQI scores, were worse for caregiver participants. Hierarchical multiple regression analyses predicting PSQI scores revealed that caregivers' age and marital status were the only significant predictors in the final model. CONCLUSIONS: Older adults with severe mental disorders constitute a vulnerable population which generates a significant burden of care, and impacts their caregivers' subjective sleep quality. CLINICAL IMPLICATIONS: Family interventions, including sleep interventions, should be considered as an integral component of treatment for serious mental illnesses. When promoting sleep quality, older and single caregivers should be targeted.

A Systematic Review of Completeness of Reporting in Randomized Controlled Trials in Dermatologic Surgery: Adherence to CONSORT 2010 Recommendations.

BACKGROUND: Randomized controlled trials are the gold standard for comparing safety and effectiveness of surgical interventions. Reporting guidelines are available for conveying the results of such trials. OBJECTIVE: To assess adherence to standard reporting guidelines among randomized controlled trials in dermatologic surgery. MATERIALS AND METHODS: Systematic review. Data source was randomized controlled trials in the journal Dermatologic Surgery, per PubMed search, 1995 to 2014. Studies were appraised for the number of the 37 CONSORT 2010 Checklist criteria reported in each. Analysis included comparison of reporting across 4 consecutive periods. RESULTS: Three hundred sixty-three studies were eligible. The mean number of items reported per study increased monotonically from 14.5 in 1995 to 1999 to 16.2 in 2002 to 2004, 17.7 in 2005 to 2009, and 18.0 in 2010 to 2014 (p < .0001). A limitation was that study procedures may have been performed without being reported. CONCLUSION: Completeness of reporting in randomized controlled trials in dermatologic surgery has improved significantly during the preceding 2 decades. Some elements are still reported at lower rates.

Life stress and somatic symptoms among adolescents: gender as moderator.

OBJECTIVE: To study the impact of life stress on somatic symptoms of adolescents and to explore the moderating role of gender. METHODS: This cross-sectional study was conducted from September to December 2014 at secondary schools located in Islamabad, Pakistan. Data was collected by administering self-reported measures on a sample of adolescents including both males and females. SPSS 21 was used for data analysis. RESULTS: Of the 663 participants, 228(34.4%) were girls and 435(65.6%) were boys. The overall mean age was 15.27±1.20 years (range: 12-16 years). There was a significant positive correlation between the experience of life stress and somatic symptoms among adolescents (p<0.01). The prevalence of somatic symptoms was 431(65.10%) among the adolescents who experienced school-related stressors. Gender was a significant moderator and the interaction effect of gender and life stress was significant (p<0.05). Female adolescents had higher level of life stress and experienced more somatic symptoms compared to male adolescents (p<0.05). CONCLUSIONS: Life stress was found to be an important indicator of somatic complaints in adolescents, with greater risk for girls as compared to boys.

A systematic review of reporting in randomized controlled trials in Dermatologic Surgery: Jadad scores, power analysis, and sample size determination.

BACKGROUND: Dermatologic surgery is a fruitful research area that has spawned numerous randomized control trials (RCTs). OBJECTIVE: To assess the quality of reporting of randomization, blinding, sample size, and power analysis in RCTs published in the journal Dermatologic Surgery. MATERIALS AND METHODS: Randomized control trials published in Dermatologic Surgery between 1995 and 2012 were assessed regarding the quality of trial reporting. Data extraction performed independently by 2 data extractors. RESULTS: Dramatic increases in the numbers of RCTs in dermatologic surgery were noted in successive 5-year periods, from 39 in 1995 to 1999 to 66 in 2000 to 2004 and 131 in 2005 to 2009. The median Jadad score for articles from 1995 to 1999 was 1 and was 2 for articles since 2000. Subjects per study were 20 during 1995 to 1999, 25.5 from 2000 to 2004, and over 30 since 2005. Power analysis with sample size determination was reported in 0 articles during 1995 to 1999; greater than 13% of articles since 2005. Alpha level was specified for 37% of RCTs from 1995 to 1999 and 64% to 70% since 2005. CONCLUSION: During the last 20 years, the number of RCTs in Dermatologic Surgery has grown rapidly, almost doubling every 5 years, because the number of subjects per study has also increased and the quality of reporting has significantly improved.

Occupational exposure to Aspergillus and aflatoxins among food-grain workers in India.

BACKGROUND: Aflatoxins are a metabolite of Aspergillus molds and are widespread in the natural environment. Workers who handle food grains are at increased risk of exposure to aflatoxins and subsequently certain respiratory conditions. In India, more than half of the employed population is engaged in some type of agricultural work, yet little known about the respiratory problems as a result of exposure to aflatoxins among workers who handle food grains in India. OBJECTIVES: The aim of this study was to determine the risk of occupational exposure to aflatoxins in food-grain workers compared to workers who are not occupationally exposed to food grains. METHODS: Bronchoalveolar lavage (BAL) and serum samples from 46 food-grain workers and 44 non-food-grain workers were analyzed for the presence of aflatoxins. Microscopy and culture of BAL samples were performed to detect Aspergillus species. RESULTS: Aflatoxins were detected in 32·6% of the food-grain workers and 9·1% of non food grain workers (P<0·01). A significant difference was also found in BAL culture for Aspergillus (P<0·01) between the two groups. About 47·8% of the food-grain workers and 11·4% of non-food-grain workers had chronic respiratory symptoms. CONCLUSION: Occupational exposure to aflatoxins in food-grain workers was found to be associated with the increased presence of respiratory symptoms.

ALK inhibitors in cancer: mechanisms of resistance and therapeutic management strategies.

Anaplastic lymphoma kinase (ALK) gene rearrangements have been identified as potent oncogenic drivers in several malignancies, including non-small cell lung cancer (NSCLC). The discovery of ALK inhibition using a tyrosine kinase inhibitor (TKI) has dramatically improved the outcomes of patients with ALK-mutated NSCLC. However, the emergence of intrinsic and acquired resistance inevitably occurs with ALK TKI use. This review describes the molecular mechanisms of ALK TKI resistance and discusses management strategies to overcome therapeutic resistance.

Sarcoidosis associated pleural effusion: A case series and review.

Sarcoidosis is a multisystem disease most commonly affecting the lungs but also can rarely manifest as pleural effusions. Sarcoidosis associated pleural effusion occurs in around 1% of patients with sarcoidosis. Pleural fluid is typically exudative, lymphocyte predominant, with high pleural protein levels and normal or mildly elevated lactate dehydrogenase. Diagnosis involves excluding other etiologies of this pleural effusion and can be made clinically or definitively with pleural biopsy showing noncaseating granulomas. Treatment involves corticosteroids to which patients typically have an excellent response with resolution of the pleural effusion.

NowIKnowMyABCD: A global resource hub for researchers using data from the ABCD Study.

The Adolescent Brain and Cognitive Development (ABCD) Study, involving over 11,000 youth and their families, is a groundbreaking project examining various factors impacting brain and cognitive development. Despite yielding hundreds of publications and counting, the ABCD Study has lacked a centralized help platform to assist researchers in navigating and analyzing the extensive ABCD dataset. To support the ABCD research community, we created NowIKnowMyABCD, the first centralized documentation and communication resource publicly available to researchers using ABCD Study data. It consists of two core elements: a user-focused website and a moderated discussion board. The website serves as a repository for ABCD-related resources, tutorials, and a live feed of relevant updates and queries sourced from social media websites. The discussion board offers a platform for researchers to seek guidance, troubleshoot issues, and engage with peers. Our aim is for NowIKnowMyABCD to grow with participation from the ABCD research community, fostering transparency, collaboration, and adherence to open science principles.

Floaters in Mohs micrographic surgery.

BACKGROUND: Floaters are dislodged pieces of tumor tissue than can obscure Mohs micrographic surgery (MMS) frozen sections and confound their interpretation. OBJECTIVE: To understand the common causes of floaters and identify management strategies. METHODS: An initial virtual consensus conference of Mohs surgeons based on a 60-item questionnaire. Data were validated in interviews with randomly selected Mohs surgeons. RESULTS: Based on retrospective reporting of 230 surgeon-years and 170,404 cases of MMS by 26 surgeons, the mean rate of floaters per tumor treated was 1.8%, and the rate of floaters per tissue block was 0.70%. Not wiping blades between cuts when a stage is separated into subunits can predispose to floaters. There was also strong consensus that basal cell carcinomas, ulcerated tumors, and tissue from the first stage were more likely to yield floaters. There is little consensus on how to manage floaters, with possibilities including taking additional sections, taking an additional stage, or simply noting the floater. CONCLUSION: Floaters are not rare and can complicate MMS margin assessment. There is significant expert consensus regarding the causes of floaters and the tissue features that may predispose to them. Floaters may be prevented by minimizing their likely causes. There is less consensus on what to do with a floater.

Fibrolipoma of the orbit.

Herein we present a retrospective case report of a very rare fibrolipoma originating in the orbit. Lipomas and related variants presenting in the orbit are very rare. Only 2 documented orbital fibrolipomas were noted in our review of literature. A 26-year-old woman presented with a growing mass below the left eyebrow 4 years after suffering facial trauma after being kicked in the face by a horse. CT demonstrated a hypodense nodule adherent to the orbital portion of the left frontal bone that was not encapsulated. An elective left anterior orbitotomy with excisional biopsy was performed, and fibrolipoma was confirmed on histopathologic examination. There was no evidence of tumor after 2-year follow up. The presence of a fibrolipoma in the periosteum of the orbital rim is very rare and might be a result of inflammatory transformation following facial trauma.