Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 296
Filtrar
1.
Vestn Oftalmol ; 138(4): 6-14, 2022.
Artículo en Ruso | MEDLINE | ID: mdl-36004585

RESUMEN

Eyelid tumors are the most common neoplasms in everyday ophthalmic practice and cover a wide range of benign and malignant lesions. Surgical methods, cryodestruction, laser therapy and radiation therapy are used in the treatment of malignant eyelid tumors. Chemotherapy does not occupy a prominent place in the treatment of malignant eyelid tumors, its use is limited to sensitive tumors. OBJECTIVE: To assess the antitumor activity of the Russian-developed chemical compound 2-[3-(2-chloroethyl)-3-nitrosoureido]-1.3-propandiol (chlonisol) on the models of transplantable tumors of various histogenesis implanted into the lower eyelid. MATERIAL AND METHODS: The study was carried out on 67 mice of lines 129/SN, BALB/c and C57BL/6 that had Ehrlich carcinoma, sarcoma 37, lymphosarcoma LIO-1 and B16 melanoma transplanted into the eyelid. Tumor transplantation was done by injecting 0.05 ml of sterile sodium chloride solution containing 106 cells of Ehrlich carcinoma, sarcoma 37, lymphosarcoma LIO-1, or 10% suspension of tumor tissue of B16 melanoma. The injection was performed into the right lower eyelid in the direction from the outer towards the inner corner of the eye using a thin needle (29G). Chlonisol was administered at the maximum tolerated dose of 20 mg/kg or at the lower dose of 15 mg/kg intraperitoneally 24 hours after tumor transplantation. RESULTS: In mice with Ehrlich carcinoma, sarcoma 37, lymphosarcoma LIO-1 and melanoma B16 transplanted under the skin of the lower eyelid, a single intraperitoneal injection of chlonisol at the dose of 20 or 15 mg/kg caused significant inhibition of tumor growth reaching 100%. Chlonisol significantly increased overall survival in animals with Ehrlich carcinoma (log rank test, p=0.0464), sarcoma 37 (log rank test, p<0.0001), lymphosarcoma LIO-1 (log rank test, p=0.0122) and B16 melanoma (log rank test, p<0.0001); the proportion of animals that were fully healed was 25, 78, 67 and 25%, respectively. CONCLUSION: Chlonisol has a pronounced antitumor effect in mice with Ehrlich carcinoma, sarcoma 37, lymphosarcoma LIO-1 and B16 melanoma transplanted into the eyelid.


Asunto(s)
Carcinoma , Neoplasias de los Párpados , Linfoma no Hodgkin , Melanoma Experimental , Neoplasias Experimentales , Sarcoma 37 , Animales , Neoplasias de los Párpados/diagnóstico , Neoplasias de los Párpados/tratamiento farmacológico , Ratones , Ratones Endogámicos C57BL , Neoplasias Experimentales/tratamiento farmacológico
3.
Transl Vis Sci Technol ; 10(6): 34, 2021 05 03.
Artículo en Inglés | MEDLINE | ID: mdl-34043754

RESUMEN

Purpose: Sebaceous carcinoma (SC) is a malignant eyelid tumor of the ocular adnexa that is primarily treated via surgical excision. Few therapies exist in advanced cases, and medical therapy is limited because of our incomplete understanding of SC biology. Herein, we describe a technique to culture human ocular adnexal SC for use as an in vitro model. Methods: Human ocular adnexal SC tumor cells were isolated from a patient undergoing orbital exenteration surgery and named Bascom Palmer 50 (BP50). They were cultured in Dulbecco's modified Eagle medium/nutrient mixture F-12 supplemented with 10% fetal bovine serum and antibiotics and were maintained at 37°C in humidified 5% CO2. The cells were characterized by immunohistochemistry, exome sequencing, and short tandem repeats analysis. In vitro drug screening against mitomycin-C (MMC) was performed using a cell viability assay. Results: BP50 grew past 40 passages with a doubling time of 52.3 hours. Immunocytochemical staining revealed expression of SC-associated markers adipophilin, epithelial membrane antigen, p53, and androgen receptor. Whole exome sequencing showed a significant carryover in somatic mutations between the tumor tissue and corresponding cell line, revealing genetic markers consistent with SC. MMC affected cell viability in a dose-dependent manner. Conclusions: BP50 displays characteristics of ocular adnexal SC and therefore may facilitate improved understanding of SC biology and the high throughput assessment of novel therapeutic compounds and new drug combinatorial approaches targeted for this disease. Translational Relevance: Drug screening with MMC against these cells shows in vitro evidence to support its continued clinical use in SC.


Asunto(s)
Adenocarcinoma Sebáceo , Neoplasias del Ojo , Neoplasias de los Párpados , Neoplasias de las Glándulas Sebáceas , Línea Celular , Neoplasias del Ojo/tratamiento farmacológico , Neoplasias de los Párpados/tratamiento farmacológico , Humanos
4.
Arch. Soc. Esp. Oftalmol ; 95(9): 459-462, sept. 2020. ilus, tab
Artículo en Español | IBECS | ID: ibc-201789

RESUMEN

El linfoma anaplásico de células grandes primario cutáneo (LACGc) forma parte del espectro de la enfermedad linfoproliferativa cutánea CD30+. Su afectación palpebral es muy rara, y en todos los casos descritos en la literatura afecta al párpado superior. En el presente caso clínico se describe un LACGc palpebral de localización atípica. Una mujer de 39 años sin antecedentes de interés presentó una lesión de crecimiento rápido en canto medio palpebral de aspecto inflamatorio-infeccioso. Tras una semana de antibioterapia oral sin respuesta, se realizó una biopsia excisional. Con análisis anatomopatológico compatible y estudio de extensión negativo, se catalogó como LACGc. Tras 2 años de seguimiento la paciente no ha presentado recidiva de la enfermedad. La afectación de los párpados por un LACGc es poco frecuente y potencialmente grave. Por ello, es necesario ampliar la información sobre el diagnóstico, tratamiento y curso de esta enfermedad


Cutaneous anaplastic large-cell lymphoma (cALCL) is a condition within CD30 lymphoid proliferations spectrum. Involving the eyelid is unusual and all cases found in the literature are located in the upper eyelid. In this case we report an cALCL atypical presentation. A 39 year-old woman with no significant medical history, presents a fast-growing mass in the medial canthus, with inflamatory-infectious appearance. After a week with antibiotics with no response, an excisional biopsy was practiced. The hystopathology analysis with a negative systemic work up confirmed the diagnosis of a cALCL. After two-year follow up, patient is asymptomatic. cALCL involving the eyelid are rare but potentially life-threatening disorders, so more information about diagnosis, treatment and follow up is needed


Asunto(s)
Humanos , Femenino , Adulto , Linfoma Anaplásico Cutáneo Primario de Células Grandes/patología , Aparato Lagrimal/patología , Neoplasias Cutáneas/patología , Neoplasias de los Párpados/patología , Linfoma Anaplásico Cutáneo Primario de Células Grandes/tratamiento farmacológico , Aparato Lagrimal/efectos de los fármacos , Neoplasias Cutáneas/tratamiento farmacológico , Biopsia , Neoplasias de los Párpados/tratamiento farmacológico
9.
Indian J Ophthalmol ; 67(12): 1974-1980, 2019 12.
Artículo en Inglés | MEDLINE | ID: mdl-31755431

RESUMEN

Purpose: A pilot randomized control trial to compare the efficacy and side effects of intralesional and oral propranolol in periorbital and eyelid capillary hemangiomas. Methods: Twenty patients were prospectively randomized to two groups of ten each. Group 1 was initiated on oral propranolol 1 mg/kg/day titrated to final dose of 3 mg/kg/day over 1 week which was continued for 6 months and then tapered over 1 week; Group 2 received 3 doses of direct intralesional propranolol hydrochloride 1 mg/ml; 0.2 ml/cm 4-6 weeks apart. Hemangioma area and corneal astigmatism were measured. Results: Within each group at 6 months there was a significant reduction in area (group 1: 83.48 ± 11.67%,P= 0.0019; group 2: 67.78 ± 21.71%,P= 0.0019) and improvement in astigmatism (pre, post: group 1: 2.98D @ 179.8°, 1.13D @ 179.8°,P= 0.0045; group 2: 1.62D @ 90.16°, 0.75D @ 179.9°,P= 0.0001). There was no difference in area reduction (P = 0.056), change in appearance (P = 0.085), ptosis (P = 0.23) and side effects (lethargy, poor feeding;P= 0.171) between the two groups. Conclusion: Efficacy and side effects with intralesional propranolol are comparable to oral propranolol for periorbital and eyelid lesions.


Asunto(s)
Antagonistas Adrenérgicos beta/administración & dosificación , Neoplasias de los Párpados/tratamiento farmacológico , Hemangioma Capilar/tratamiento farmacológico , Neoplasias Orbitales/tratamiento farmacológico , Propranolol/administración & dosificación , Administración Oral , Neoplasias de los Párpados/patología , Femenino , Hemangioma Capilar/patología , Humanos , Lactante , Inyecciones Intralesiones , Masculino , Neoplasias Orbitales/patología , Proyectos Piloto , Estudios Prospectivos , Resultado del Tratamiento
10.
Arq. bras. oftalmol ; 82(6): 514-516, Nov.-Dec. 2019. graf
Artículo en Inglés | LILACS | ID: biblio-1038694

RESUMEN

ABSTRACT Ocular adnexal involvement in CD30+ lymphoproliferative disorders is rare. We report the case of a 73-year-old woman with a relapsing primary cutaneous anaplastic large cell lymphoma on her eyelid. A systemic extension study excluded extracutaneous involvement. Systemic chemotherapy resulted in an optimal response, with complete regression of the cutaneous lesions. There has been no recurrence during the 2 years of follow-up.


RESUMO O acometimento ocular adicional nos distúrbios linfoproliferativos CD30+ é raro. Relatamos o caso de uma mulher de 73 anos com linfoma de grandes células anaplásicas primárias recidivantes em sua pálpebra. A avaliação sistêmica excluiu envolvimento extracutâneo. A quimioterapia sistémica resultou em uma resposta ótima, com regressão completa das lesões cutáneas. Não houve recidiva durante 2 anos de acompanhamento.


Asunto(s)
Humanos , Femenino , Anciano , Linfoma Anaplásico de Células Grandes/patología , Neoplasias de los Párpados/patología , Biopsia , Resultado del Tratamiento , Linfoma Anaplásico de Células Grandes/tratamiento farmacológico , Neoplasias de los Párpados/tratamiento farmacológico
12.
Arq Bras Oftalmol ; 82(6): 514-516, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31531544

RESUMEN

Ocular adnexal involvement in CD30+ lymphoproliferative disorders is rare. We report the case of a 73-year-old woman with a relapsing primary cutaneous anaplastic large cell lymphoma on her eyelid. A systemic extension study excluded extracutaneous involvement. Systemic chemotherapy resulted in an optimal response, with complete regression of the cutaneous lesions. There has been no recurrence during the 2 years of follow-up.


Asunto(s)
Neoplasias de los Párpados/patología , Linfoma Anaplásico de Células Grandes/patología , Anciano , Biopsia , Neoplasias de los Párpados/tratamiento farmacológico , Femenino , Humanos , Linfoma Anaplásico de Células Grandes/tratamiento farmacológico , Resultado del Tratamiento
13.
Am J Ophthalmol ; 207: 62-70, 2019 11.
Artículo en Inglés | MEDLINE | ID: mdl-31077664

RESUMEN

PURPOSE: To evaluate the effectiveness of vismodegib, a Hedgehog pathway inhibitor, in treating orbital and advanced periocular basal cell carcinoma (BCC) in Israeli multidisciplinary medical centers. DESIGN: Retrospective case series. METHODS: Background, treatment, and outcome data were retrospectively collected from the medical records of all patients with locally advanced and metastatic orbital or periocular BCC treated with vismodegib in 2012-2017 at 2 tertiary medical centers. RESULTS: The cohort included 21 patients (16 male) of median age 76 years with periocular (n=6) or orbital (n=15) BCC. Median duration of treatment was 9 months, with follow-up of 26 months (range 9-60 months) overall and 17 months after treatment cessation. Clinical response was complete in 10 patients, partial in 10 patients, and stable in 1 patient. Among the complete responders, 5 maintained a complete response at 16 months, and 3 who stopped treatment had a recurrence 8 months later. Almost all treatment-related adverse reactions were graded 1 or 2 (low-grade). The most common grade 1 or 2 complications were muscle spasm (76%), followed by dysgeusia (57%), alopecia (47%), weight loss (47%) and decreased appetite (19%). The only grade 3 or 4 adverse event was hepatotoxicity (10%). Eight patients discontinued treatment because of side effects. Five patients died, most from reasons unrelated to vismodegib therapy, except for 1 patient who died from possibly treatment-related sepsis (grade 5 adverse event). CONCLUSIONS: To our knowledge, this is the only study generated outside the United States and Europe, and it represents the largest study to date on vismodegib therapy for locally advanced periocular BCC. Treatment according to an individualized maximally tolerated dose may achieve a comparable response to the ERIVANCE protocol. Longer-term studies are needed to assess prognosis.


Asunto(s)
Anilidas/uso terapéutico , Carcinoma Basocelular/tratamiento farmacológico , Neoplasias de los Párpados/tratamiento farmacológico , Neoplasias Orbitales/tratamiento farmacológico , Piridinas/uso terapéutico , Anciano , Anciano de 80 o más Años , Carcinoma Basocelular/patología , Neoplasias de los Párpados/patología , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Neoplasias Orbitales/patología , Estudios Retrospectivos , Factores de Tiempo , Resultado del Tratamiento
14.
Trop Doct ; 49(3): 246-248, 2019 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-31014195

RESUMEN

Infantile haemangioma is a relatively common benign tumour which often does not require treatment. We present a case of a segmental infantile haemangioma with periocular involvement impacting on early visual development which was successfully treated with topical timolol maleate 0.5% drops in the developing world.


Asunto(s)
Antagonistas Adrenérgicos beta/administración & dosificación , Neoplasias de los Párpados/tratamiento farmacológico , Hemangioma Capilar/tratamiento farmacológico , Timolol/administración & dosificación , Administración Tópica , Humanos , Lactante , Masculino , Resultado del Tratamiento
15.
Sci Rep ; 9(1): 4285, 2019 03 12.
Artículo en Inglés | MEDLINE | ID: mdl-30862897

RESUMEN

There is increasing evidence about the effectiveness of electrochemotherapy (ECT) in the treatment of basal cell carcinomas in the head and neck region, although its role in the management of eyelid-periocular skin tumors has to be clarified. The aim of the present study is to evaluate the results of ECT in the treatment of locally advanced primary and recurrent eyelid-periocular skin basal cell carcinomas. Twelve patients with basal cell carcinoma involving the eyelid-periocular skin region were treated with ECT. Three patients had locally advanced primary tumors, while 9 patients had recurrent tumors. All treatments were performed according to the ESOPE guidelines, using Cliniporator TM device. All patients received bleomycin based ECT. The route of administration was intratumoral in 3 patients and intravenous in 9 patients. Tumor response was evaluated using the RECIST 1.1. criteria. ECT resulted in complete response of the periocular skin tumors in all patients. Lower eyelid ectropion was developed in 3 patients which had to be corrected surgically. ECT can be used effectively in the treatment of locally advanced or recurrent basal cell carcinomas in the eyelid-periocular skin region. Excellent tumor control can be achieved with good functional and cosmetic results without systemic adverse events with short interval follow-up.


Asunto(s)
Carcinoma Basocelular/tratamiento farmacológico , Carcinoma Basocelular/terapia , Electroquimioterapia/métodos , Neoplasias de los Párpados/tratamiento farmacológico , Neoplasias de los Párpados/terapia , Recurrencia Local de Neoplasia/tratamiento farmacológico , Recurrencia Local de Neoplasia/terapia , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Antibióticos Antineoplásicos/uso terapéutico , Bleomicina/uso terapéutico , Niño , Femenino , Humanos , Masculino , Persona de Mediana Edad , Neoplasias Cutáneas/tratamiento farmacológico , Neoplasias Cutáneas/terapia , Resultado del Tratamiento , Adulto Joven
18.
Ophthalmic Plast Reconstr Surg ; 35(5): 484-486, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-30844918

RESUMEN

PURPOSE: To evaluate the clinical and ultrasonographic response of periocular infantile capillary hemangioma during treatment with oral propranolol. METHODS: Patients with infantile periocular hemangioma and visual or cosmetic concerns were enrolled in this prospective interventional case series. Propranolol was given at a dose of 2 mg/kg per day for at least 6 months. Evaluation of treatment response was performed at month 3 (time point 1) and month 6 (time point 2). Gray scale ultrasonography and color Doppler imaging were performed at baseline and month 3. RESULTS: Thirty-one patients with mean age of 4.1 ± 2.3 months were eligible for analysis. Complete or near complete clinical resolution was observed in 4 patients (12.9%) at time point 1 and 21 patients (67.7%) at time point 2. Longitudinal diameter, transverse diameter, thickness, arterial peak systolic velocity, and end diastolic velocity reduced significantly from baseline to 3-month follow up. Complete clinical response at time point 2 was significantly higher in patients with peak systolic velocity reduction >50% from baseline to month 3 than patients with peak systolic velocity reduction of 10% to 50% and <10%. CONCLUSIONS: Propranolol is safe and effective for infantile periocular hemangioma. Ultrasonography and color Doppler imaging are useful modalities to monitor and predict the treatment response.


Asunto(s)
Antagonistas Adrenérgicos beta/administración & dosificación , Neoplasias de los Párpados/tratamiento farmacológico , Hemangioma Capilar/tratamiento farmacológico , Propranolol/administración & dosificación , Neoplasias Cutáneas/tratamiento farmacológico , Administración Oral , Femenino , Humanos , Lactante , Masculino , Estudios Prospectivos
20.
Ophthalmology ; 126(1): 146-155, 2019 01.
Artículo en Inglés | MEDLINE | ID: mdl-30075202

RESUMEN

PURPOSE: To review the published literature assessing the efficacy of ß-blockers for the treatment of periocular hemangioma in infants. METHODS: Literature searches were conducted in May 2018 in PubMed with no date restrictions and limited to studies published in English and in the Cochrane Library database without any restrictions. The combined searches yielded 437 citations. Of these,16 articles were deemed appropriate for inclusion in this assessment and assigned a level of evidence rating by the panel methodologist. RESULTS: None of the 16 studies included in this assessment were rated level I, 3 were rated level II, and 13 were rated level III. The most common treatment regimen was 2 mg/kg daily oral propranolol, but intralesional and topical ß-blockers were also used. Treatment effect was most often measured in terms of reduction in the size of the lesions, which occurred in the majority of patients. ß-Blockers were consistently shown to reduce astigmatism, but this reduction was shown to be statistically significant in only 2 series. The effect of ß-blockers on amblyopia was not adequately documented. ß-Blockers were generally well tolerated and had mild side effects (fatigue, gastrointestinal upset/diarrhea, restlessness/sleep disturbances, minor wheezing, and cold extremities). Complications severe enough to require cessation of treatment occurred in only 2 patients out of a total of 229 who received ß-blockers. CONCLUSIONS: There is limited evidence to support the safety and efficacy of both topical and systemic ß-blockers to promote regression of periocular hemangiomas. Additional research may confirm the best dosage and route of administration to maximize efficacy in reducing induced astigmatism and amblyopia associated with periocular hemangiomas while minimizing side effects.


Asunto(s)
Antagonistas Adrenérgicos beta/uso terapéutico , Neoplasias de los Párpados/tratamiento farmacológico , Hemangioma Capilar/tratamiento farmacológico , Neoplasias Orbitales/tratamiento farmacológico , Propranolol/uso terapéutico , Academias e Institutos/organización & administración , Antagonistas Adrenérgicos beta/efectos adversos , Preescolar , Neoplasias de los Párpados/patología , Hemangioma Capilar/patología , Humanos , Lactante , Recién Nacido , Oftalmología/organización & administración , Neoplasias Orbitales/patología , Propranolol/efectos adversos , Evaluación de la Tecnología Biomédica , Resultado del Tratamiento
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...