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2.
J Pediatr Ophthalmol Strabismus ; 61(1): 67-72, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-37227013

RESUMEN

PURPOSE: To characterize the presentation, clinical course, and treatment of a series of children with leukemic optic neuropathy. METHODS: Patients with leukemia who were treated at a tertiary children's hospital for optic nerve infiltration were included (n = 11). Demographic information, cancer history, ophthalmologic examination findings, treatment, and outcomes were retrospectively collected. RESULTS: Mean age was 10.0 ± 4.8 years, and 63.6% were male and 36.4% were female. The most common underlying oncologic diagnosis was B-precursor acute lymphoblastic leukemia (n = 7, 63.6%). Notably, the majority presented with optic nerve infiltration during presumed remission (n = 9, 81.8%), but 2 patients (18.2%) presented with optic nerve infiltration at their initial leukemia diagnosis. Cerebrospinal fluid was positive for leukemic cells in 36.4% of patients. Magnetic resonance imaging demonstrated optic nerve enhancement and/or enlargement in only 8 patients (72.7%). In addition to other leukemia-directed treatment, 8 patients (72.7%) received emergent local radiation within 1.5 ± 1.2 days of initial ophthalmology examination. CONCLUSIONS: The largely negative cerebrospinal fluid results and variable magnetic resonance imaging findings in this study emphasize the importance of clinical context for this diagnosis. Clinicians should consider optic nerve infiltration in patients with leukemia and visual or ocular complaints, because urgent treatment is required to preserve vision and manage systemic disease. [J Pediatr Ophthalmol Strabismus. 2024;61(1):67-72.].


Asunto(s)
Enfermedades del Nervio Óptico , Leucemia-Linfoma Linfoblástico de Células Precursoras , Humanos , Masculino , Niño , Femenino , Preescolar , Adolescente , Estudios Retrospectivos , Infiltración Leucémica/diagnóstico , Nervio Óptico/patología , Enfermedades del Nervio Óptico/diagnóstico , Enfermedades del Nervio Óptico/etiología , Leucemia-Linfoma Linfoblástico de Células Precursoras/complicaciones , Leucemia-Linfoma Linfoblástico de Células Precursoras/diagnóstico , Leucemia-Linfoma Linfoblástico de Células Precursoras/terapia
3.
R Soc Open Sci ; 10(10): 231305, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37830026

RESUMEN

The gut microbiome has a well-documented relationship with host fitness. Greater microbial diversity and abundance of specific microbes have been associated with improved fitness outcomes. Intestinal microbes also may be associated with patterns of social behaviour. However, these associations have been largely studied in captive animal models; we know less about microbiome composition as a potential driver of individual social behaviour and position in the wild. We used linear mixed models to quantify the relationship between fecal microbial composition, diversity and social network traits in a wild population of yellow-bellied marmots (Marmota flaviventer). We focused our analyses on microbes previously linked to sociability and neurobehavioural alterations in captive rodents, primates and humans. Using 5 years of data, we found microbial diversity (Shannon-Wiener and Faith's phylogenetic diversity) has a modest yet statistically significant negative relationship with the number of social interactions an individual engaged in. We also found a negative relationship between Streptococcus spp. relative abundance and two social network measures (clustering coefficient and embeddedness) that quantify an individual's position relative to others in their social group. These findings highlight a potentially consequential relationship between microbial composition and social behaviour in a wild social mammal.

4.
Artículo en Inglés | MEDLINE | ID: mdl-37796431

RESUMEN

With the development of the COVID-19 vaccine in late 2020, the importance of understanding the drivers of vaccine acceptance and vaccine hesitancy is important for the health of American Indian and Alaska Native communities. We conducted a cross-sectional, anonymous survey in October 2021 using established quantitative methods of virtual surveys to reach tribal members living on three reservations in the Great Plains (N = 679). We conducted multivariate analyses using logistic regression to assess the association between independent variables and COVID-19 vaccination status after adjusting for confounding. Respondents were more likely to have received a COVID-19 vaccine if they were older, had a full-time job, had previously received a flu vaccination, reported a higher level of trust in the health care system, had increased access to vaccinations, were able to isolate, or if they held a desire to keep their family safe. This study is one of the first to offer insights into the associations and possible determinants of COVID-19 vaccine uptake among American Indians in the Great Plains and was completed as part of the National Institutes of Health Rapid Acceleration of Diagnostics of Underserved Populations consortium. We identified a set of demographic, socioeconomic, and motivational factors that are associated with COVID-19 vaccination uptake among Great Plains American Indians and Alaska Natives. It is possible that future vaccine uptake may be enhanced through economic development, strengthening health care operations and care quality, and focusing vaccination messaging on family and community impact.

5.
Sci Rep ; 13(1): 14814, 2023 09 08.
Artículo en Inglés | MEDLINE | ID: mdl-37684383

RESUMEN

The COVID-19 pandemic has led to both intentional and unintentional care delay among age-related neovascular macular degeneration (nvAMD) patients. Prior studies have demonstrated that patients who discontinue nvAMD treatment for prolonged intervals are at high risk for vision loss, but less is known regarding shorter-term delay, such as during the height of the pandemic. Previous studies have looked at COVID-19 related delay in care and have shown a loss of visual acuity (VA) among these patients, but studies are limited by short follow-up or insufficient comparisons. This was an observational cohort study of nvAMD patients from March 1, 2019, through July 1, 2021, who experienced care delay. VA was modeled using a linear longitudinal mixed-effects model comparing historic data pre-lockdown to data post-lockdown. Covariates included baseline anatomic variables, demographic variables, and time intervals (treatment interval, delay interval). Secondary anatomic and treatment outcomes were modeled using a multilevel binary logistic regression model. 163 eyes among 116 patients were included. Initial longitudinal mixed-effects models found that although overall VA decreased at a yearly rate, when comparing pre-lockdown and post-lockdown time periods, VA slopes were not statistically different. Single-covariate longitudinal models showed that age, sex, and delay interval significantly affected VA slope. The multivariate longitudinal model found that a longer delay interval significantly decreased rate of VA loss. Multilevel binary logistic regression models showed a significant increase in odds of anti-VEGF treatment, presence of subretinal fluid, and macular hemorrhages in the post-lockdown period. Overall, when compared to historic data, rate of VA loss among our cohort did not vary significantly in pre-versus post-lockdown time periods, although treatment and anatomic variables did worsen post-lockdown suggesting that patients may be appropriately delayed but this comes at the risk of increased need for treatment.


Asunto(s)
COVID-19 , Degeneración Macular , Humanos , COVID-19/epidemiología , Estudios de Cohortes , Control de Enfermedades Transmisibles , Pandemias , Degeneración Macular/epidemiología , Degeneración Macular/terapia
6.
Phys Sportsmed ; : 1-9, 2023 Aug 10.
Artículo en Inglés | MEDLINE | ID: mdl-37483167

RESUMEN

OBJECTIVES: The purpose of this study is to evaluate the utility of the Patient-Reported Outcomes Measurement Information System (PROMIS) anxiety and depressive symptom domains in conjunction with the Post-Concussion Symptom Scale (PCSS)for identifying pediatric patients with emotional symptoms following a concussion, and to identify predictors of higher emotional symptom loads. METHODS: We recruited English-speaking patients aged 8-17 years presenting to a tertiary-care concussion clinic from 2014 to 2018 (n = 458). Demographics and clinical data including PCSS, injury date, previous history of anxiety/depression, and Vestibular/Ocular-Motor Screen (VOMS) were collected from patients' electronic medical records. Participants completed surveys in the PROMISTM Pediatric Item Bank v1.1-Anxiety and Depressive Symptoms domains at their initial clinic visit. Multivariable linear regression identified predictors of higher emotional symptom loads. RESULTS: Overall, 425 (92.8%) reported ≥1 emotional symptom on either PROMIS or PCSS. Predictors of higher emotional symptom loads were abnormal VOMS, female sex, history of anxiety or depression, and longer time since injury. CONCLUSION: Our results suggest that adding PROMIS anxiety and depressive symptom surveys to pediatric concussion evaluations may identify more children with emotional symptoms, allowing clinicians to better direct post-concussion treatment and incorporate psychological support for patients if necessary. Future studies should examine whether earlier identification of emotional symptoms with these tools facilitates recovery and improves short- and/or long-term psychological outcomes in pediatric concussion.

7.
Oncol Nurs Forum ; 50(3): 279-289, 2023 04 21.
Artículo en Inglés | MEDLINE | ID: mdl-37155972

RESUMEN

PURPOSE: To explore the perspectives on patient and family needs during cancer treatment and survivorship of American Indian (AI) cancer survivors, caregivers, Tribal leaders, and healers. PARTICIPANTS & SETTING: 36 AI cancer survivors from three reservations in the Great Plains region. METHODOLOGIC APPROACH: A community-based participatory research design was employed. Postcolonial Indigenous research techniques of talking circles and semistructured interviews were used to gather qualitative data. Data were analyzed using content analysis to identify themes. FINDINGS: The overarching theme of accompaniment was identified. The following themes were intertwined with this theme: (a) the need for home health care, with the subthemes of family support and symptom management; and (b) patient and family education. IMPLICATIONS FOR NURSING: To provide high-quality cancer care to AI patients in their home communities, oncology clinicians should collaborate with local care providers, relevant organizations, and the Indian Health Service to identify and develop essential services. Future efforts must emphasize culturally responsive interventions in which Tribal community health workers serve as navigators to accompany patients and families during treatment and in survivorship.


Asunto(s)
Supervivientes de Cáncer , Indígenas Norteamericanos , Neoplasias , Humanos , Indio Americano o Nativo de Alaska , Cuidadores , Cuidados Paliativos , Neoplasias/terapia
8.
J Vitreoretin Dis ; 7(3): 211-219, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37188207

RESUMEN

Purpose: To evaluate applicants' and programs' experiences during the 2019 and 2020 fellowship application seasons. Methods: An anonymous survey of vitreoretinal surgery fellowship program directors (PDs) (n = 21) and applicants from the 2019 traditional (n = 24) and 2020 virtual (n = 17) match cycles (before and during COVID-19 pandemic, respectively) was conducted. The questions assessed demographics, interview experiences, and overall interview costs. Statistical significance was determined using unpaired and paired 2-sided t tests for applicants and PDs, respectively (P < .05). Results: In 2020, 17.6% of applicants and 15.8% of PDs strongly agreed that they were able to convey themselves well during the interview compared with 50% and 73.7%, respectively, in 2019 (P = .002 and P < .001, respectively). In 2020, 5.9% of applicants and 10.5% of PDs strongly agreed that they gained a good understanding of their counterpart compared with 41.7% and 47.4%, respectively, in 2019 (P < .001 and P = .01, respectively). Regarding cost, 83.3% of applicants and 21.1% of programs spent more than $2000 in 2019, whereas 17.6% of applicants and no program did so in 2020. Conclusions: Although virtual interviews allowed fellowship recruitment to continue during the pandemic, both applicants and PDs expressed uncertainty regarding their abilities to portray themselves and gauge those with whom they interviewed. The benefits of virtual interviews, including decreased cost, increased efficiency, and convenience, must be weighed against these factors.

9.
JAMA ; 329(20): 1757-1767, 2023 05 23.
Artículo en Inglés | MEDLINE | ID: mdl-37120800

RESUMEN

Importance: An intervention model (the Parent-focused Redesign for Encounters, Newborns to Toddlers; the PARENT intervention) for well-child care that integrates a community health worker into preventive care services may enhance early childhood well-child care. Objective: To examine the effectiveness of the PARENT intervention vs usual care for parents with children younger than 2 years of age. Design, Setting, and Participants: A cluster randomized clinical trial was conducted between March 2019 and July 2022. Of the 1283 parents with a child younger than 2 years of age presenting for a well-child visit at 1 of the 10 clinic sites (2 federally qualified health centers in California and Washington) approached for trial participation, 937 were enrolled. Intervention: Five clinics implemented the PARENT intervention, which is a team-based approach to care that uses a community health worker in the role of a coach (ie, health educator) as part of the well-child care team to provide comprehensive preventive services, and 5 clinics provided usual care. Main Outcomes and Measures: There were 2 primary outcomes: score for parent-reported receipt of recommended anticipatory guidance during well-child visits (score range, 0-100) and emergency department (ED) use (proportion with ≥2 ED visits). The secondary outcomes included psychosocial screening, developmental screening, health care use, and parent-reported experiences of care. Results: Of the 937 parents who were enrolled, 914 remained eligible to participate (n = 438 in the intervention group and n = 476 in the usual care group; 95% were mothers, 73% reported Latino ethnicity, and 63% reported an annual income <$30 000). The majority (855/914; 94%) of the children (mean age, 4.4 months at parental enrollment) were insured by Medicaid. Of the 914 parents who remained eligible and enrolled, 785 (86%) completed the 12-month follow-up interview. Parents of children treated at the intervention clinics (n = 375) reported receiving more anticipatory guidance than the parents of children treated at the usual care clinics (n = 407) (mean score, 73.9 [SD, 23.4] vs 63.3 [SD, 27.8], respectively; adjusted absolute difference, 11.01 [95% CI, 6.44 to 15.59]). There was no difference in ED use (proportion with ≥2 ED visits) between the intervention group (n = 376) and the usual care group (n = 407) (37.2% vs 36.1%, respectively; adjusted absolute difference, 1.2% [95% CI, -5.5% to 8.0%]). The effects of the intervention on the secondary outcomes included a higher amount of psychosocial assessments performed, a greater number of parents who had developmental or behavioral concerns elicited and addressed, increased attendance at well-child visits, and greater parental experiences with the care received (helpfulness of care). Conclusions and Relevance: The intervention resulted in improvements in the receipt of preventive care services vs usual care for children insured by Medicaid by incorporating community health workers in a team-based approach to early childhood well-child care. Trial Registration: ClinicalTrials.gov Identifier: NCT03797898.


Asunto(s)
Cuidado del Niño , Salud Infantil , Agentes Comunitarios de Salud , Medicaid , Femenino , Humanos , Lactante , Recién Nacido , Madres , Estados Unidos , Medicina Preventiva , Renta , Hispánicos o Latinos , Grupo de Atención al Paciente
10.
Front Health Serv ; 3: 989157, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36926506

RESUMEN

Background: Team-based care offers potential for integrating non-clinicians, such as community health workers (CHWs), into the primary care team to ensure that patients and families receive culturally relevant care to address their physical, social, and behavioral health and wellness needs. We describe how two federally qualified health center (FQHC) organizations adapted an evidence-based, team-based model of well-child care (WCC) designed to ensure that the parents of young children, aged 0-3, have their comprehensive preventive care needs met at WCC visits. Methods: Each FQHC formed a Project Working Group composed of clinicians, staff, and parents to determine what adaptations to make in the process of implementation of PARENT (Parent-Focused Redesign for Encounters, Newborns to Toddlers), a team-based care intervention that uses a CHW in the role of a preventive care coach. We use the Framework for Reporting Adaptations and Modifications to Evidence-based interventions (FRAME) to chronicle the various intervention modifications and the adaptation process, focusing on when and how modifications occurred, whether it was planned or unplanned, and the reasons and goals for the modification. Results: The Project Working Groups adapted several elements of the intervention in response to clinic priorities, workflow, staffing, space, and population need. Modifications were planned and proactive, and were made at the organization, clinic, and individual provider level. Modification decisions were made by the Project Working Group and operationalized by the Project Leadership Team. Examples of modifications include the following: (1) changing the parent coach educational requirement from a Master's degree to a bachelor's degree or equivalent experience to reflect the needs of the coach role; (2) the use of FQHC-specific templates for the coach's documentation of the pre-visit screening in the electronic health record; and (3) the use of electronic social needs referral tools to help the coach track and follow up on social need referrals. The modifications did not change the core elements (i.e., parent coach provision of preventive care services) or intervention goals. Conclusions: For clinics implementing team-based care interventions, the engagement of key clinical stakeholders early and often in the intervention adaptation and implementation process, and planning for intervention modifications at both at an organizational level and at a clinical level are critical for local implementation.

11.
Prev Med ; 169: 107448, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36773962

RESUMEN

Parent reminders have produced modest improvements in human papillomavirus (HPV) vaccination among adolescents. However, little prior research has compared the effectiveness and feasibility of different HPV reminder types in resource-limited settings. We conducted a quasi-experimental study (2016-2017) to evaluate the effectiveness of three parent reminder types (mailed letters, robocalls, text messages) on next-dose HPV vaccine receipt among 12-year-olds in a large Federally Qualified Health Center in Los Angeles County. Six clinics were matched into three pairs: randomly assigning one clinic within each pair to intervention and control. Intervention clinics were randomly assigned to deliver one of the three parent reminder types. We calculated rates of next-dose vaccine receipt and assessed intervention effects using logistic regression models. We calculated the proportion of each type of reminder successfully delivered as a feasibility measure. The study sample comprised 877 12-year-olds due for an HPV vaccine dose (47% female, >85% Latino). At 4-month follow-up, 23% of intervention patients received an HPV vaccine dose compared to only 12% of control patients. Overall, receipt of any reminder increased rates of the next-needed HPV vaccine compared to usual care (p = 0.046). Significant improvements were observed for text reminders (p = 0.036) and boys (p = 0.006). Robocalls were the least feasible reminder type. Text message reminders are feasible and effective for promoting HPV vaccination. Future research is needed to assess the effectiveness and feasibility of reminders compared to other vaccine promotion strategies.


Asunto(s)
Infecciones por Papillomavirus , Vacunas contra Papillomavirus , Envío de Mensajes de Texto , Masculino , Humanos , Femenino , Adolescente , Virus del Papiloma Humano , Infecciones por Papillomavirus/prevención & control , Estudios de Factibilidad , Sistemas Recordatorios , Vacunación , Padres , Papillomaviridae
13.
J Racial Ethn Health Disparities ; 10(5): 2528-2539, 2023 10.
Artículo en Inglés | MEDLINE | ID: mdl-36271192

RESUMEN

BACKGROUND: COVID-19 created unparalleled challenges for vulnerable communities, especially among American Indians and Alaska Natives. An effective COVID-19 response requires a tribally driven effort to understand the perspectives of Tribal members on testing and to ensure that delivery strategies are grounded in the cultural values, traditions, and experiences of the Tribes. METHODS: We conducted a cross-sectional, anonymous survey in October 2021 using established methods to reach Tribal members residing in three Reservations in the Great Plains (N = 679). Multivariate analyses were conducted using logistic regression to assess the association between independent variables and COVID-19 testing uptake after adjusting for confounding. RESULTS: After multivariate adjustment, a respondent's employment status, ability to isolate if diagnosed with COVID-19, and endorsing that COVID-19 testing is only needed if one has symptoms were significantly correlated with having been previously tested for COVID-19. Participants without a full-time job were about half as likely to have been tested for COVID-19 compared to those with full-time jobs. Participants who reported not being able to isolate if they tested positive for COVID-19 and participants who did not think testing was needed if asymptomatic were also half as likely to be tested. CONCLUSIONS: Ensuring that everyone has the ability to isolate, that people who are not working have easy access to testing, and that everyone understands the value of testing after exposure are key steps to maximizing testing uptake. Efforts will only be successful if there is continued investment in programs that provide free testing access for everyone on Reservations.


Asunto(s)
Prueba de COVID-19 , COVID-19 , Indígenas Norteamericanos , Humanos , COVID-19/diagnóstico , Estudios Transversales
14.
Am J Ophthalmol Case Rep ; 28: 101746, 2022 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-36393910

RESUMEN

Purpose: The purpose of this report is to describe a case of a patient with microspherophakia (MSP) who had a scleral rupture during a retinal detachment (RD) repair with primary scleral buckle and cryoretinopexy. Observations: A 48-year-old woman with MSP presented with six days of expanding loss of vision and photopsias. Examination revealed a superior retinal detachment involving the macula associated with two superior retinal tears. The patient underwent successful placement of a segmental buckle. During cryoretinopexy treatment of the tears, a 4 mm full-thickness scleral rupture occurred. The sclera was immediately closed with interrupted 8-0 nylon sutures and reinforced with a processed pericardium allograft. Subsequent combined phacoemulsification with capsulectomy, zonulectomy, and pars plana vitrectomy with retinal reattachment was performed nine days post buckle placement. Conclusions and importance: This case illustrates that a patient with MSP, even observed in the absence of a genetic syndrome or familial condition, may be at increased risk of scleral rupture during RD repair. Though future investigations are necessary to confirm this association, surgeons should take a conservative approach by having a high clinical suspicion for compromised scleral integrity in patients with MSP and proceeding with caution in procedures that may pose a risk of scleral rupture. A pericardium allograft can be an effective adjunct for scleral rupture repair.

15.
J Pain Symptom Manage ; 64(3): 268-275, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35618248

RESUMEN

CONTEXT: American Indians (AIs) are disproportionately affected by serious illness such as cancer. Colonization, cultural genocide, and trauma have adversely affected AIs' ability to attain health and well-being, and in many cases led to the loss of the right to practice traditional ceremonies and rituals. Still many AIs describe well-being as being rooted in spirituality. OBJECTIVES: The purpose of this project was to learn about the perspectives of AI cancer survivors, caregivers, and Tribal leaders and healers specific to spirituality while on the cancer journey. METHODS: Qualitative interviews and Indigenous talking circle methodologies were used to explore AIs cancer survivors, caregivers, and Tribal leaders and healers' perspectives on spirituality while on the cancer journey. A data analysis team consisting of AI and non-AI members analyzed the narrative data. RESULTS: Qualitative analysis of interviews and talking circles revealed 4 major themes related to spirituality: the chasm of colonialism, coexistence of Traditional and Christian religions, calling the Spirit back, and prayer as sacred energy. CONCLUSION: It is critical that clinicians caring for AIs with serious illness seek to understand their patients' spiritual beliefs about disease treatment and death and work with them and their families to support quality of life throughout their illness journey. In addition, clinicians must recognize the systemic racism inherent in our healthcare systems, and dismantle cultural clashes and bias for all patients, particularly AIs, who have long suffered from poorer health outcomes.


Asunto(s)
Neoplasias , Terapias Espirituales , Cristianismo , Humanos , Calidad de Vida , Espiritualidad , Indio Americano o Nativo de Alaska
16.
J Pain Symptom Manage ; 64(3): 276-286, 2022 09.
Artículo en Inglés | MEDLINE | ID: mdl-35618250

RESUMEN

CONTEXT: Despite the known importance of culturally tailored palliative care (PC), American Indian people (AIs) in the Great Plains lack access to such services. While clinicians caring for AIs in the Great Plains have long acknowledged major barriers to serious illness care, there is a paucity of literature describing specific factors influencing PC access and delivery for AI patients living on reservation land. OBJECTIVES: This study aimed to explore factors influencing PC access and delivery on reservation land in the Great Plains to inform the development culturally tailored PC services for AIs. METHODS: Three authors recorded and transcribed interviews with 21 specialty and 17 primary clinicians. A data analysis team of seven authors analyzed transcripts using conventional content analysis. The analysis team met over Zoom to engage in code negotiation, classify codes, and develop themes. RESULTS: Qualitative analysis of interview data revealed four themes encompassing factors influencing palliative care delivery and access for Great Plains American Indians: health care system operations (e.g., hospice and home health availability, fragmented services), geography (e.g., weather, travel distances), workforce elements (e.g., care continuity, inadequate staffing, cultural familiarity), and historical trauma and racism. CONCLUSION: Our findings emphasize the importance of addressing the time and cost of travel for seriously ill patients, increasing home health and hospice availability on reservations, and improving trust in the medical system. Strengthening the AI medical workforce, increasing funding for the Indian Health Service, and transitioning the governance of reservation health care to Tribal entities may improve the trustworthiness of the medical system.


Asunto(s)
Enfermería de Cuidados Paliativos al Final de la Vida , Hospitales para Enfermos Terminales , Indígenas Norteamericanos , Humanos , Cuidados Paliativos , Indio Americano o Nativo de Alaska
17.
Dermatol Online J ; 24(6)2018 Jun 15.
Artículo en Inglés | MEDLINE | ID: mdl-30142727

RESUMEN

The original article was published on July19, 2017 and corrected on June 15, 2018.The revised version of the article adds appropriate in-text references to Figures 3B, C and 5B, C, and correctly renumbers the list of References. The changes appear in the revised online PDF copy of this article.

18.
Dermatol Online J ; 24(5)2018 May 15.
Artículo en Inglés | MEDLINE | ID: mdl-30142735

RESUMEN

Leukemia cutis (LC), a rare cutaneous manifestation of leukemia, can precede, follow, occur concurrently with, or present in the absence of (aleukemic) systemic leukemia. Leukemia cutis is especially rare as the presenting symptom of leukemia and is associated with a poor prognosis. Although more commonly seen in acute leukemias of myeloid and monocytic lineage, lymphocytic/lymphoblastic leukemias can also involve the skin. Three cases of LC presented with diverse skin lesions ranging from an erythematous rash to violaceous macules and papules to subcutaneous nodules. One case clinically mimicked fixed drug eruption. All the patients had acute myeloid leukemia (AML). Lesions showed two overarching histologic patterns: atypical perivascular infiltrate or nodular dermal histiocytoid infiltrate. Our cases expressed myeloperoxidase (MPO), a helpful marker to distinguish myeloid from non-myeloid cells, and CD68, a monocytic marker frequently expressed in cutaneous AML. CD14, a marker of monocyte maturity, was negative. In the absence of systemic leukemia, common diagnostic tools for hematologic malignancies such as bone marrow biopsy and flow cytometry are non-contributory, making morphologic and immunohistochemical analysis of the skin lesions key to diagnosis.


Asunto(s)
Leucemia Mieloide Aguda/diagnóstico , Infiltración Leucémica/patología , Piel/patología , Adulto , Anciano , Femenino , Humanos , Leucemia Mieloide Aguda/patología , Infiltración Leucémica/diagnóstico , Masculino , Persona de Mediana Edad
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