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1.
J Surg Oncol ; 128(8): 1302-1311, 2023 Dec.
Article in English | MEDLINE | ID: mdl-37610042

ABSTRACT

BACKGROUND AND OBJECTIVES: Curative intent therapy is the standard of care for early-stage hepatocellular carcinoma (HCC). However, these therapies are under-utilized, with several treatment and survival disparities. We sought to demonstrate whether the type of facility and distance from treatment center (with transplant capabilities) contributed to disparities in curative-intent treatment and survival for early-stage HCC in California. METHODS: We performed a retrospective analysis of the California Cancer Registry for patients diagnosed with stage I or II primary HCC between 2005 and 2017. Primary and secondary outcomes were receipt of treatment and overall survival, respectively. Multivariable logistic regression and Multivariable Cox proportional hazards regression were used to evaluate associations. RESULTS: Of 19 059 patients with early-stage HCC, only 36% (6778) received curative-intent treatment. Compared to Non-Hispanic White patients, Hispanic patients were less likely, and Asian/Pacific Islander patients were more likely to receive curative-intent treatment. Our results showed that rural residence, public insurance, lower neighborhood SES, and care at non-National Cancer Institute-designated cancer center were associated with not receiving treatment and decreased survival. CONCLUSIONS: Although multiple factors influence receipt of treatment for early-HCC, our findings suggest that early intervention programs should target travel barriers and access to specialist care to help improve oncologic outcomes.


Subject(s)
Carcinoma, Hepatocellular , Healthcare Disparities , Liver Neoplasms , Humans , California/epidemiology , Carcinoma, Hepatocellular/pathology , Hispanic or Latino , Liver Neoplasms/pathology , Retrospective Studies , Asian , Pacific Island People
2.
J Immunother Cancer ; 11(1)2023 01.
Article in English | MEDLINE | ID: mdl-36599469

ABSTRACT

BACKGROUND: Groundbreaking studies have linked the gut microbiome with immune homeostasis and antitumor immune responses. Mounting evidence has also demonstrated an intratumoral microbiome, including in soft tissue sarcomas (STS), although detailed characterization of the STS intratumoral microbiome is limited. We sought to characterize the intratumoral microbiome in patients with STS undergoing preoperative radiotherapy and surgery, hypothesizing the presence of a distinct intratumoral microbiome with potentially clinically significant microbial signatures. METHODS: We prospectively obtained tumor and stool samples from adult patients with non-metastatic STS using a strict sterile collection protocol to minimize contamination. Metagenomic classification was used to estimate abundance using genus and species taxonomic levels across all classified organisms, and data were analyzed with respect to clinicopathologic factors. RESULTS: Fifteen patients were enrolled. Most tumors were located at an extremity (67%) and were histologic grade 3 (87%). 40% were well-differentiated/dedifferentiated liposarcoma histology. With a median follow-up of 24 months, 4 (27%) patients developed metastases, and 3 (20%) died. Despite overwhelming human DNA (>99%) intratumorally, we detected a small but consistent proportion of bacterial DNA (0.02-0.03%) in all tumors, including Proteobacteria, Bacteroidetes, and Firmicutes, as well as viral species. In the tumor microenvironment, we observed a strong positive correlation between viral relative abundance and natural killer (NK) infiltration, and higher NK infiltration was associated with superior metastasis-free and overall survival by immunohistochemical, flow cytometry, and multiplex immunofluorescence analyses. CONCLUSIONS: We prospectively demonstrate the presence of a distinct and measurable intratumoral microbiome in patients with STS at multiple time points. Our data suggest that the STS tumor microbiome has prognostic significance with viral relative abundance associated with NK infiltration and oncologic outcome. Additional studies are warranted to further assess the clinical impact of these findings.


Subject(s)
Sarcoma , Soft Tissue Neoplasms , Adult , Humans , Virome , Sarcoma/genetics , Prognosis , Extremities/pathology , Killer Cells, Natural , Tumor Microenvironment
3.
Am J Surg ; 225(1): 162-167, 2023 01.
Article in English | MEDLINE | ID: mdl-35871849

ABSTRACT

BACKGROUND: Analysis of the costs associated with emergency department (ED) visits after discharge for violent injury could highlight subgroups for the development of cost-effective interventions to support healing and prevent treatment failures in violently injured patients. METHODS: A retrospective cohort review was conducted of all patients with return ED visits within 90 days of discharge after treatment for a violent injury occurring between July 1, 2016, and June 30, 2018. Hospital costs were calculated for each incidence and analyzed against demographic and injury type variables to identify trends. RESULTS: 218 return ED visits were identified. Hospital costs showed a high frequency of low-cost visits. For more complex visits, distinct cost patterns were observed for Black and LatinX males compared to White males as a function of age. CONCLUSIONS: Analysis of hospital cost per visit identified trends among different subgroups. Underlying etiologies presumably vary between groups, but hypothesis-driven further investigation and needs assessment is required. Understanding the driving forces behind these cost trends may aid in developing effective interventions.


Subject(s)
Emergency Service, Hospital , Patient Discharge , Male , Humans , Retrospective Studies , Hospital Costs , Incidence
4.
Front Immunol ; 13: 983344, 2022.
Article in English | MEDLINE | ID: mdl-36032113

ABSTRACT

The microbiome has clearly been established as a cutting-edge field in tumor immunology and immunotherapy. Growing evidence supports the role of the microbiome in immune surveillance, self-tolerance, and response to immune checkpoint inhibitors such as anti PD-L1 and CTLA-4 blockade (1-6). Moreover, recent studies including those using fecal microbial transplantation (FMT) have demonstrated that response to checkpoint immunotherapies may be conferred or eliminated through gut microbiome modulation (7, 8). Consequently, studies evaluating microbiota-host immune and metabolic interactions remain an area of high impact research. While observations in murine models have highlighted the importance of the microbiome in response to therapy, we lack sufficient understanding of the exact mechanisms underlying these interactions. Furthermore, mouse and human gut microbiome composition may be too dissimilar for discovery of all relevant gut microbial biomarkers. Multiple cancers in dogs, including lymphoma, high grade gliomas, melanomas and osteosarcoma (OSA) closely resemble their human analogues, particularly in regard to metastasis, disease recurrence and response to treatment. Importantly, dogs with these spontaneous cancers also have intact immune systems, suggesting that microbiome analyses in these subjects may provide high yield information, especially in the setting of novel immunotherapy regimens which are currently expanding rapidly in canine comparative oncology (9, 10). Additionally, as onco-microbiotic therapies are developed to modify gut microbiomes for maximal responsiveness, large animal models with intact immune systems will be useful for trialing interventions and monitoring adverse events. Together, pre-clinical mechanistic studies and large animal trials can help fully unlock the potential of the microbiome as a diagnostic and therapeutic target in cancer.


Subject(s)
Bone Neoplasms , Microbiota , Animals , Clinical Trials as Topic , Disease Models, Animal , Dogs , Humans , Immunologic Factors , Immunotherapy , Mice , Neoplasm Recurrence, Local
5.
Article in English | MEDLINE | ID: mdl-35805221

ABSTRACT

Telehealth holds much potential for supporting older adults' physical and social health. In particular, telewellness interventions to support the physical and social wellness of older adults are needed to overcome participation barriers with in-person programs. This paper presents guidelines for delivering telewellness interventions to older adults, which were informed by a human factors approach to developing a Tele Tai Chi intervention for older adults with mobility disabilities, including reviewing user needs literature and conducting user-centered needs assessment research. From these findings, we developed a protocol and support materials for delivering a telewellness intervention and conducted a feasibility study. We also established an adaptation committee to provide recommendations on the intervention. The outcome of our human factors approach was the establishment of research-driven design guidelines for delivering group exercise programs to older adults using videoconferencing. The guidelines provide direction for designing a telewellness protocol, supporting remote participation, and promoting socialization and engagement. These guidelines can be used to deliver interventions that increase access to socially-engaging, physical activity programs for older adults, which can ultimately help support their physical health, mental health, and quality of life.


Subject(s)
Quality of Life , Videoconferencing , Aged , Exercise/psychology , Exercise Therapy , Humans , Physical Therapy Modalities
6.
Pancreas ; 51(10): 1376-1380, 2022.
Article in English | MEDLINE | ID: mdl-37099782

ABSTRACT

OBJECTIVES: Comorbid psychiatric illness has been associated with worse outcomes after some major surgical procedures. We hypothesized that patients with preexisting mood disorders would have worse postoperative and oncologic outcomes after pancreatic cancer resection. METHODS: This retrospective cohort study analyzed Surveillance, Epidemiology, and End Results patients with resectable pancreatic adenocarcinoma. A preexisting mood disorder was classified if a patient was diagnosed and/or treated with medication approved for depression/anxiety within 6 months before surgery. RESULTS: Of 1305 patients, 16% had a preexisting mood disorder. Mood disorders had no impact on hospital length of stay (12.9 vs 13.2 days, P = 0.75), 30-day complications (26% vs 22%, P = 0.31), 30-day readmissions (26% vs 21%, P = 0.1), or mortality (30 days: 3% vs 4%, P = 0.35); only an increased 90-day readmissions rate (42% vs 31%, P = 0.001) was observed. No effect on adjuvant chemotherapy receipt (62.5% vs 69.2%, P = 0.06) or survival (24 months, 43% vs 39%, P = 0.44) was observed. CONCLUSIONS: Preexisting mood disorders influenced 90-day readmissions after pancreatic resection, but not other postoperative or oncologic outcomes. These findings suggest that affected patients should be expected to have outcomes similar to patients without mood disorders.


Subject(s)
Adenocarcinoma , Mental Disorders , Pancreatic Neoplasms , Humans , Pancreatic Neoplasms/complications , Pancreatic Neoplasms/surgery , Adenocarcinoma/complications , Adenocarcinoma/surgery , Retrospective Studies , Mental Disorders/complications , Mental Disorders/epidemiology , Pancreatic Neoplasms
8.
Cutis ; 107(6): 292-296, 2021 Jun.
Article in English | MEDLINE | ID: mdl-34314310
9.
Phys Rev Lett ; 124(8): 081101, 2020 Feb 28.
Article in English | MEDLINE | ID: mdl-32167338

ABSTRACT

Searching for space-time variations of the constants of Nature is a promising way to search for new physics beyond general relativity and the standard model motivated by unification theories and models of dark matter and dark energy. We propose a new way to search for a variation of the fine-structure constant using measurements of late-type evolved giant stars from the S star cluster orbiting the supermassive black hole in our Galactic Center. A measurement of the difference between distinct absorption lines (with different sensitivity to the fine structure constant) from a star leads to a direct estimate of a variation of the fine structure constant between the star's location and Earth. Using spectroscopic measurements of five stars, we obtain a constraint on the relative variation of the fine structure constant below 10^{-5}. This is the first time a varying constant of nature is searched for around a black hole and in a high gravitational potential. This analysis shows new ways the monitoring of stars in the Galactic Center can be used to probe fundamental physics.

10.
J Laryngol Otol ; 132(8): 724-728, 2018 Aug.
Article in English | MEDLINE | ID: mdl-29974835

ABSTRACT

BACKGROUND: Although the role of neurotrophins such as nerve growth factor and brain-derived neurotrophic factor in nasal polyps development has been studied, the contribution of neurotrophin-3 has not been evaluated yet. This study aimed to investigate the possible role of neurotrophin-3 in nasal polyps pathogenesis. METHODS: The study group comprised 70 non-allergic nasal polyps patients and the control group consisted of 53 patients with middle turbinate concha bullosa. Specimens were taken, during surgery, from the ethmoid sinus nasal polyps in the nasal polyps group and from the lateral part of the middle turbinate concha bullosa in the control group. Tissue and serum levels of neurotrophin-3 were assessed by immunohistochemistry and enzyme-linked immunosorbent assay, respectively. RESULTS: Nasal polyps patients had higher tissue neurotrophin-3 scores (p < 0.001). There was no statistically significant difference between groups regarding serum neurotrophin-3 levels (p = 0.417). Tissue neurotrophin-3 staining scores in the nasal polyps group had no statistically significant correlation with Lund-Mackay scores (p = 0.792). CONCLUSION: Neurotrophin-3 may have a local effect in nasal polyps pathogenesis, without joining systemic circulation.


Subject(s)
Nasal Polyps/etiology , Nasal Polyps/metabolism , Nerve Growth Factors/metabolism , Adult , Asthma/complications , Asthma/metabolism , Case-Control Studies , Ethmoid Sinus/metabolism , Female , Humans , Male , Nasal Polyps/pathology , Neurotrophin 3 , Turbinates/metabolism
11.
Epilepsy Behav ; 78: 175-178, 2018 01.
Article in English | MEDLINE | ID: mdl-29126702

ABSTRACT

The timing of epilepsy surgery is complex, and there is not a structured pathway to help families decide whether to continue medical management or pursue surgical treatment. We surveyed caregivers of pediatric epilepsy surgery patients. Fifty-eight respondents answered the majority of questions. Thirty caregivers wished their child had undergone epilepsy surgery earlier compared with twenty who felt surgery was done at the appropriate time, and eight were unsure. In retrospect, caregivers who wished their child's surgery had been performed sooner had a significantly longer duration of epilepsy prior to the surgery [44.1±71.7 (months±standard deviation (SD), N=27)], compared with those who felt content with the timing of the surgery [12.8±14.1 (months±SD, N=20), p=0.0034]. Caregivers were willing to accept a lower likelihood of seizure freedom than their physician reported was likely. Most caregivers were willing to accept deficits in all domains surveyed; caregivers had high acceptance of motor deficits, cognitive deficits, behavioral change, and language loss. Future studies are needed to focus on how to improve the education of caregivers and neurologists about the benefits and risks of epilepsy surgery and accelerate the pipeline to epilepsy surgery to improve caregiver satisfaction.


Subject(s)
Caregivers , Decision Making , Epilepsy/surgery , Parents , Caregivers/psychology , Child , Female , Humans , Male , Surveys and Questionnaires
12.
Int J Obes (Lond) ; 40(2): 266-74, 2016 Feb.
Article in English | MEDLINE | ID: mdl-26374448

ABSTRACT

BACKGROUND/OBJECTIVE: Adiponectin exerts beneficial effects by reducing inflammation and improving lipid metabolism and insulin sensitivity. Although the adiponectin level is lower in obese individuals, whether weight gain reduces adiponectin expression in humans is controversial. We sought to investigate the role of weight gain, and consequent changes in leptin, on altering adiponectin expression in humans. METHODS/RESULTS: Forty-four normal-weight healthy subjects were recruited (mean age 29 years; 14 women) and randomized to either gain 5% of body weight by 8 weeks of overfeeding (n=34) or maintain weight (n=10). Modest weight gain of 3.8±1.2 kg resulted in increased adiponectin level (P=0.03), whereas weight maintenance resulted in no changes in adiponectin. Further, changes in adiponectin correlated positively with changes in leptin (P=0.0085). In-vitro experiments using differentiated human white preadipocytes showed that leptin increased adiponectin mRNA and protein expression, whereas a leptin antagonist had opposite effects. To understand the role of leptin in established obesity, we compared adipose tissue samples obtained from normal-weight versus obese subjects. We noted, first, that leptin activated cellular signaling pathways and increased adiponectin mRNA in the adipose tissue from normal-weight participants, but did not do so in the adipose tissue from obese participants. Second, we noted that obese subjects had increased caveolin-1 expression, which attenuates leptin-dependent increases in adiponectin. CONCLUSIONS: Modest weight gain in healthy individuals is associated with increases in adiponectin levels, which correlate positively with changes in leptin. In vitro, leptin induces adiponectin expression, which is attenuated by increased caveolin-1 expression. In addition, the adipose tissue from obese subjects shows increased caveolin-1 expression and impaired leptin signaling. This leptin signal impairment may prevent concordant increases in adiponectin levels in obese subjects despite their high levels of leptin. Therefore, impaired leptin signaling may contribute to low adiponectin expression in obesity and may provide a target for increasing adiponectin expression, hence improving insulin sensitivity and cardio-metabolic profile in obesity.


Subject(s)
Adiponectin/metabolism , Adipose Tissue/metabolism , Aging/metabolism , Leptin/metabolism , Obesity , Weight Gain , Body Mass Index , Caveolin 1 , Female , Humans , Lipid Metabolism , Longitudinal Studies , Male , Obesity/metabolism , Obesity/physiopathology , Obesity/prevention & control , Prevalence , Signal Transduction , United States/epidemiology , Up-Regulation
13.
Clin Neuroradiol ; 26(3): 347-53, 2016 Sep.
Article in English | MEDLINE | ID: mdl-25491776

ABSTRACT

PURPOSE: Ecchordosis physaliphora (EP) is a notochordal remnant typically located at the dorsal surface of the clivus, which has to be distinguished from the other retroclival lesions. Our aim is to investigate the imaging features of intracranial EP using precontrast and contrast-enhanced fast imaging employing steady-state acquisition (FIESTA). METHODS: We retrospectively evaluated the precontrast and contrast-enhanced FIESTA images of 399 patients with temporal magnetic resonance imaging to detect "classical EP" and "possible EP." The classical EP was classified into type A (hyperintense excrescence (cyst-like component) on the dorsal surface of the clivus) and type B (hyperintense excrescence plus a hyperintense lesion within the clivus). Possible EP was subdivided as incomplete EP (T2-hypointense protrusion of the clivus) and EP variant (hyperintense lesion within the clivus alone). RESULTS: We found 31 (31 of 399, 7.7 %) EPs of which 11 were defined as classical EP (2.7 %) and 20 were defined as possible EP (5.0 %). Of the 11 classical EPs, 7 (63.6 %) were diagnosed as type A and 4 (% 36.4) were diagnosed as type B. Of the 20 possible EPs, 19 were classified as incomplete EP (95.0 %) and one was classified as EP variant (5.0 %). CONCLUSIONS: Contrast-enhanced FIESTA images are helpful in the assessment of EP, although we do not define a role in the current classification proposed by Chihara et al. (Eur Radiol 23:2854-2860, 2013).


Subject(s)
Gadolinium/administration & dosage , Hamartoma/diagnostic imaging , Magnetic Resonance Imaging/methods , Magnetic Resonance Imaging/standards , Notochord/abnormalities , Notochord/diagnostic imaging , Adolescent , Adult , Aged , Contrast Media/administration & dosage , Cranial Fossa, Posterior/diagnostic imaging , Female , Humans , Image Enhancement/methods , Image Enhancement/standards , Male , Middle Aged , Observer Variation , Practice Guidelines as Topic , Reproducibility of Results , Sensitivity and Specificity , Young Adult
14.
J Pediatr ; 165(5): 1008-10, 2014 Nov.
Article in English | MEDLINE | ID: mdl-25149498

ABSTRACT

OBJECTIVES: To examine the relationship between delay in the age of first independent walking and cognitive impairment in boys with Duchenne muscular dystrophy (DMD) to assess how age of diagnosis might be improved. STUDY DESIGN: We reviewed the records of 179 boys with DMD evaluated by the senior author between 1989 and June 2012. Delay in walking was defined as occurring at or greater than 16 months of age. Cognitive impairment was identified by school placement in special education or lower than expected grade level during the elementary school years. RESULTS: Delay in walking and cognitive impairment are highly correlated (P ≤ .0001). If cognitively delayed, boys with DMD were 3 times more likely to have a delay in walking. This association was shown to be independent from the rate of motor degeneration (P = .9) and the age of diagnosis (P = .6, combined average = 5.1 ± 2 years). CONCLUSION: Delay in the onset of walking in boys with DMD is strongly associated with cognitive delay. We suspect that primary care givers overlook DMD as a possible cause of delay in the age of independent walking when early features of cognitive delay are also apparent. DMD should be included among those disorders causing global developmental delay. Recognition of this association could substantially decrease the age of diagnosis for many boys with DMD. We suggest that the standard evaluation for boys with global developmental delay include an inexpensive and sensitive serum creatine kinase test.


Subject(s)
Cognition Disorders/etiology , Developmental Disabilities/etiology , Muscular Dystrophy, Duchenne/complications , Walking , Child , Child, Preschool , Cognition Disorders/diagnosis , Developmental Disabilities/diagnosis , Early Diagnosis , Humans , Male , Regression Analysis , Retrospective Studies
15.
Malays J Pathol ; 35(1): 99-102, 2013 Jun.
Article in English | MEDLINE | ID: mdl-23817402

ABSTRACT

Leiomyoma and gastrointestinal stromal tumours take first place among mesenchymal tumours of the oesophagus, where tumours of peripheral nerve origin are rarely seen. Schwann and enterochromaffi n cell proliferation occur in neurogenous hyperplasia, an entity observed in the appendix which has not been reported in the oesophagus in the medical literature. Oesophagogastroscopy of a 58-year-old woman showed linear erosions and nodularity at the gastroesophageal junction. The microscopic examination of biopsies taken from this area revealed proliferation of spindle cells with oval-round nuclei forming focal fascicular arrangement in the lamina propria. These cells stained positive for synaptophysin and S100-protein, while immunohistochemistry for smooth muscle actin and CD117 were negative. The case was diagnosed as neurogenous hyperplasia with these findings. Control endoscopic biopsies showed no evidence of neurogenous hyperplasia. Neurogenous hyperplasia can be considered as a distinct entity which might also be observed in the oesophagus as in the appendix.


Subject(s)
Esophageal Diseases/pathology , Female , Humans , Hyperplasia/pathology , Middle Aged
16.
Rev Esp Med Nucl Imagen Mol ; 31(5): 257-60, 2012 Sep.
Article in English | MEDLINE | ID: mdl-23067527

ABSTRACT

OBJECTIVES: This retrospective study was designed to assess the value of positron emission tomography/computed tomography imaging (PET/CT) in the post-treatment evaluation of the patients with endometrial carcinoma and to compare PET/CT scan with conventional imaging (CI) including computed tomography (CT), ultrasonography (US) and magnetic resonance imaging (MRI) and CA 125 with both 20U/ml and 35U/ml cut-off values. MATERIALS AND METHODS: A total of 31 patients who were treated for histopathologically proven endometrial adenocarcinoma, underwent PET/CT examination for restaging and suspected recurrence. Thirty five PET/CT studies were performed in 31 patients. Lesion status was determined on the basis of clinical follow-up including radiological imaging (follow-up CT scan) at least 6 months and response to therapy. RESULTS: Of the 35 PET/CT studies, 13 (37%) studies were positive, whereas 22 (63%) of them were negative. On study-based analysis the overall sensitivity, specificity, accuracy for PET/CT imaging were 100%, 96% and 97%, respectively. The corresponding information for CI were 46%, 87% and 74%, for CA 125 (cut off=20U/ml) measurement were 45%, 88% and 74%, and for CA 125 (cut off=35U/ml) measurement were 27%, 100% and 78%, respectively. On lesion-based analysis, PET/CT revealed only one false positive case. In none of 21 patients with negative 22 PET/CT studies, no subsequent clinical or radiological recurrences were observed with a follow-up of at least 6 months. CONCLUSION: FDG-PET/CT is found more useful modality than CI and CA 125 in the evaluation of post-treatment endometrial carcinoma patients, for suspected recurrence.


Subject(s)
Adenocarcinoma/diagnostic imaging , Endometrial Neoplasms/diagnostic imaging , Multimodal Imaging , Positron-Emission Tomography , Adenocarcinoma/blood , Adenocarcinoma/pathology , Adenocarcinoma/secondary , Adenocarcinoma/therapy , Aged , Biomarkers, Tumor/blood , CA-125 Antigen/blood , Chemoradiotherapy , Chemotherapy, Adjuvant , Combined Modality Therapy , Endometrial Neoplasms/blood , Endometrial Neoplasms/pathology , Endometrial Neoplasms/therapy , Female , Follow-Up Studies , Humans , Hysterectomy , Liver Neoplasms/diagnostic imaging , Liver Neoplasms/secondary , Lymphatic Metastasis/diagnostic imaging , Magnetic Resonance Imaging , Middle Aged , Neoplasm Staging , Peritoneal Neoplasms/diagnostic imaging , Peritoneal Neoplasms/secondary , Radiotherapy, Adjuvant , Retrospective Studies , Sensitivity and Specificity , Splenic Neoplasms/diagnostic imaging , Splenic Neoplasms/secondary , Tomography, X-Ray Computed , Ultrasonography
17.
Rev. esp. med. nucl. imagen mol. (Ed. impr.) ; 31(5): 257-260, sept.-oct. 2012.
Article in English | IBECS | ID: ibc-103600

ABSTRACT

Objetivos. Este estudio retrospectivo fue diseñado para evaluar el valor de la tomografía por emisión de positrones/tomografía axial computerizada (PET/TAC) en la evaluación pos-tratamiento de pacientes con cáncer de endometrio y comparar el estudio de PET/TAC con imágenes convencionales (IC), incluyendo la tomografía axial computerizada (TAC), ecografía (echo) y resonancia magnética (RM) y CA 125 con valores de corte de 20U/Ml y 35ml. Materiales y métodos. Se realizó un estudio de PET/TAC en 31 pacientes tratados por adenocáncer endometrio comprobado histopatologicamente para obtener reestadiaje y en la presencia de sospecha de recaída. Se realizaron 35 estudios de PET/TAC en 31 pacientes. El estado de la lesión fue determinado a partir del seguimiento clínico, incluyendo imágenes radiológicas (seguimiento del estudio de TAC) después de al menos 6 meses y respuesta a tratamiento. Resultados. Trece (37%) de los 35 estudios PET/TAC fueron positivos y 22 (63%) negativos. El análisis basado en el estudio demostró sensibilidad, especificidad, precisión para las imágenes de PET/TAC de 100%, 96% y 97%, respectivamente. Los datos correspondientes para la IC fueron 46%, 87% y 74% y para CA 125 (punto de corte=20U/ml), las mediciones fueron 27%, 100% y 78%, respectivamente. Basado en el análisis de la lesión, la PET/TAC sólo demostró un caso de falso positivo. No fueron observadas recaídas clínicas o radiológicas con un seguimiento de al menos 6 meses en los 21 pacientes con 22 estudios negativos de PET/TAC. Conclusiones. La FDG-PET/TAC es una modalidad más útil que la IC y CA 125 en la evaluación post-tratamiento de pacientes con cáncer de endometrio en búsqueda de sospecha de recaída(AU)


Objectives. This retrospective study was designed to assess the value of positron emission tomography/computed tomography imaging (PET/CT) in the post-treatment evaluation of the patients with endometrial carcinoma and to compare PET/CT scan with conventional imaging (CI) including computed tomography (CT), ultrasonography (US) and magnetic resonance imaging (MRI) and CA 125 with both 20U/ml and 35U/ml cut-off values. Materials and methods. A total of 31 patients who were treated for histopathologically proven endometrial adenocarcinoma, underwent PET/CT examination for restaging and suspected recurrence. Thirty five PET/CT studies were performed in 31 patients. Lesion status was determined on the basis of clinical follow-up including radiological imaging (follow-up CT scan) at least 6 months and response to therapy. Results. Of the 35 PET/CT studies, 13 (37%) studies were positive, whereas 22 (63%) of them were negative. On study-based analysis the overall sensitivity, specificity, accuracy for PET/CT imaging were 100%, 96% and 97%, respectively. The corresponding information for CI were 46%, 87% and 74%, for CA 125 (cut off=20U/ml) measurement were 45%, 88% and 74%, and for CA 125 (cut off=35U/ml) measurement were 27%, 100% and 78%, respectively. On lesion-based analysis, PET/CT revealed only one false positive case. In none of 21 patients with negative 22 PET/CT studies, no subsequent clinical or radiological recurrences were observed with a follow-up of at least 6 months. Conclusion. FDG-PET/CT is found more useful modality than CI and CA 125 in the evaluation of post-treatment endometrial carcinoma patients, for suspected recurrence(AU)


Subject(s)
Humans , Female , Middle Aged , Endometrial Neoplasms/diagnosis , Positron Emission Tomography Computed Tomography/methods , CA-125 Antigen/administration & dosage , Endometrial Neoplasms , Retrospective Studies , Positron Emission Tomography Computed Tomography/instrumentation , Positron Emission Tomography Computed Tomography , Magnetic Resonance Imaging , Sensitivity and Specificity , Biomarkers, Tumor/analysis
18.
Rev. esp. med. nucl. imagen mol. (Ed. impr.) ; 31(1): 31-33, ene.-feb. 2012.
Article in Spanish | IBECS | ID: ibc-94054

ABSTRACT

Paciente de 58 años fue derivada para un FDG-PET/TAC para el re-estadiaje de un adenocarcinoma de endometrio. En cuanto a la evaluación del tratamiento, en el FDG-PET/TAC realizado 18 meses postcirugía no se detectó metástasis. Durante el seguimiento, se llevaron a cabo un FDG-PET/TAC a los 6 meses del previo para reestadificación, detectando una lesión con actividad metabólica aumentada (SUV: máx: 10,21) en el bazo que no se había detectado en el estudio previo. La lesión concordaba con metástasis de carcinoma de endometrio. Es muy poco común detectar una metástasis esplénica del endometrio. En la bibliografía, únicamente se han encontrado 13 casos de una metástasis esplénica de carcinoma de endometrio. Asimismo, se han informado de un caso de metástasis esplénica del carcinoma del endometrio en la bibliografía con imágenes del FDG-PET. Hasta donde nosotros conocemos, este es el primer informe de metástasis esplénica solitaria de un carcinoma de endometrio diagnosticado por imagen con el FDG-PET/TAC(AU)


A 58 year old female was referred for FDG-PET/CT for restaging of endometrial adenocarcinoma. For evaluation of treatment, no metastases were detected on FDG-PET/CT which was performed 18 months later after the surgery. During follow-up, FDG-PET/CT was performed 6 months later than the previous FDG-PET/CT for restaging. A lesion with increased metabolic activity (SUV max: 10.21) was detected at spleen which was not seen on previous FDG-PET/CT scan. The lesion was consistent with metastasis of endometrial carcinoma. Splenic metastasis of endometrial carcinoma is extremely rare. There are only 13 cases of splenic metastasis from endometrial carcinoma that reported in the literature before. There is only one splenic metastasis of endometrial carcinoma case reported in the literature which is imaged with FDG-PET. To best of our knowledge this is the first report of solitary splenic metastasis of endometrial carcinoma that is imaged with FDG-PET/CT(AU)


Subject(s)
Humans , Female , Middle Aged , Splenic Diseases/diagnosis , Splenic Neoplasms/diagnosis , Nuclear Medicine/methods , Nuclear Medicine/trends , Carcinoma/diagnosis , Fluorodeoxyglucose F18 , Positron-Emission Tomography/instrumentation , Positron-Emission Tomography/methods , /methods , Splenic Neoplasms , Positron-Emission Tomography/trends , Positron-Emission Tomography , Splenectomy/methods
19.
Rev Esp Med Nucl Imagen Mol ; 31(1): 31-3, 2012.
Article in English | MEDLINE | ID: mdl-21737185

ABSTRACT

A 58 year old female was referred for FDG-PET/CT for restaging of endometrial adenocarcinoma. For evaluation of treatment, no metastases were detected on FDG-PET/CT which was performed 18 months later after the surgery. During follow-up, FDG-PET/CT was performed 6 months later than the previous FDG-PET/CT for restaging. A lesion with increased metabolic activity (SUV max: 10.21) was detected at spleen which was not seen on previous FDG-PET/CT scan. The lesion was consistent with metastasis of endometrial carcinoma. Splenic metastasis of endometrial carcinoma is extremely rare. There are only 13 cases of splenic metastasis from endometrial carcinoma that reported in the literature before. There is only one splenic metastasis of endometrial carcinoma case reported in the literature which is imaged with FDG-PET. To best of our knowledge this is the first report of solitary splenic metastasis of endometrial carcinoma that is imaged with FDG-PET/CT.


Subject(s)
Abdominal Neoplasms/diagnostic imaging , Abdominal Neoplasms/secondary , Endometrial Neoplasms/diagnostic imaging , Endometrial Neoplasms/pathology , Fluorodeoxyglucose F18 , Multimodal Imaging , Positron-Emission Tomography , Radiopharmaceuticals , Splenic Neoplasms/diagnostic imaging , Splenic Neoplasms/secondary , Tomography, X-Ray Computed , Female , Humans , Middle Aged
20.
Rev. esp. med. nucl. (Ed. impr.) ; 30(6): 368-371, nov.-dic. 2011.
Article in Spanish | IBECS | ID: ibc-91480

ABSTRACT

El tumor trofoblástico epitelioide es un raro tumor gestacional recientemente descrito. Una paciente de 31 años, que tuvo un embarazo a término hace 18 meses, presentó una adenopatía axilar derecha. Se realizó una gammagrafía PET/TAC con FDG (FDG PET/TAC) para evaluar metástasis a distancia y para detectar el tumor primario. La biopsia de la adenopatía axilar demostró metástasis por carcinoma de mama. La FDG PET/TAC identificó aumento de captación en la adenopatía axilar derecha, una lesión de densidad de partes blandas con diámetro de 24 mm en la región cervical izquierda con captación de FDG aumentada, captación cervical aumentada y en una adenopatía inguinal izquierda. La RNM y la ecografía pélvicas fueron negativas para malignidad. La biopsia de la lesión en cérvix se informó de tumor trofoblástico epitelioide. Clínicamente, el tumor no se sospechó por la ausencia de signos como el sangrado vaginal anómalo. La FDG PET/TAC descubrió la lesión primaria en el cérvix. En este caso clínico, presentamos un raro tumor trofoblástico epitelioide detectado por FDG PET/TAC sincrónico con un cáncer de mama(AU)


Epithelioid trophoblastic tumor is a recently described, rare and distinctive type of gestational trophoblastic tumor. We report the case of a 31-year old patient who had a full-term pregnancy 18 months before presentation. She had a right axillary lymph node metastasis and was referred for FDG-PET/CT scan for evaluation of distant metastasis and to detect primary malignancy. The axillary lymph node biopsy revealed metastatic breast carcinoma. FDG-PET/CT revealed increased uptake of right axillary lymph node, soft tissue density lesion with a diameter of 24 mm on left cervical region with increased FDG uptake, increased uptake on cervical region and left inguinal lymph node with increased uptake. Pelvic MRI imaging and ultrasonography were negative for malignancy in cervical region. Biopsy of the lesion was consistent with epithelioid trophoblastic tumor in cervical region. Gestational trophoblastic tumor was not suspected because she had no signs such as abnormal vaginal bleeding. FDG-PET/CT demonstrated the primary lesion in cervical region. We report a rare case of primary epithelioid trophoblastic tumor detected only with FDG-PET/CT scan which synchronized with breast carcinoma(AU)


Subject(s)
Humans , Female , Adult , Trophoblastic Neoplasms/complications , Trophoblastic Neoplasms/diagnosis , Breast Neoplasms/diagnosis , Fluorodeoxyglucose F18 , Positron-Emission Tomography/methods , Positron-Emission Tomography , Carcinoma/complications , Carcinoma/diagnosis , Trophoblastic Neoplasms , Breast Neoplasms , Carcinoma
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