Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 8 de 8
Filtrar
1.
J Am Soc Cytopathol ; 12(1): 58-65, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36270913

RESUMEN

Reflex human papilloma virus (HPV) testing with "atypical squamous cells, cannot exclude high-grade squamous lesion (ASC-H)" cytologic diagnosis is not recommended by American Society for Colposcopy and Cervical Pathology guidelines. Studies have shown human papillomavirus (HPV)-negative ASC-H patients of increased age are low risk for cervical intraepithelial neoplasia 2 or worse (CIN2+) lesions on colposcopic follow-up. We retrospectively assessed the efficacy of reflex HPV testing in postmenopausal women with ASC-H in the Los Angeles County hospitals and clinics in a 5-year period. Of a total 85 clinically postmenopausal women with ASC-H, 31 (36.5%) women were found to have CIN2+ lesions on follow-up biopsy and five of them were HPV-negative. Of the women with CIN2+ lesions and positive HPV, 13 (41.9%) were high-risk HPV (hrHPV) 16/18/45 positive and 13 (41.9%) were hrHPV-other subtype positive. Women with positive HPV had an over 3-fold increased risk of developing CIN2+ lesions (P = 0.008). Relative risk of hrHPV16/18/45 was 1.79-fold higher than that of hrHPV-other subtype. The positive predictive value and negative predictive value of hrHPV were 49.1% and 84.4%, respectively. CIN2+ detection rate in Hispanic women with positive hrHPV was higher than in non-Hispanic women (53.8% versus 35.7%). Overall, postmenopausal women with ASC-H cytology result and negative hrHPV were less likely to develop CIN2+ lesions, whereas about half of ASC-H postmenopausal women develop CIN2+ lesions if hrHPV positive, especially if hrHPV 16/18/45 positive. Therefore, triaging ASC-H postmenopausal women with cotesting or, ideally, hrHPV genotyping should be considered as optimal clinical practice to avoid overtreatment.


Asunto(s)
Infecciones por Papillomavirus , Neoplasias del Cuello Uterino , Humanos , Femenino , Masculino , Neoplasias del Cuello Uterino/patología , Estudios Retrospectivos , Posmenopausia , Papillomaviridae/genética , Prueba de Papanicolaou , Papillomavirus Humano 16
2.
Medicine (Baltimore) ; 98(32): e16702, 2019 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-31393373

RESUMEN

CD30 is a member of the tumor necrosis factor family of cell surface receptors normally expressed in lymphocytes, as well as some lymphomas, but has been described in other malignancies. Anaplastic lymphoma kinase (ALK) is a tyrosine kinase receptor that belongs to the insulin receptor superfamily, and is normally expressed in neural cells, but has been detected in several malignancies. There is conflicting data in the literature that describes the expression of these receptors in breast cancer, and the aim of this study is to test the expression of CD30 and ALK in a cohort of Middle Eastern patients with breast carcinoma.Cases of invasive breast cancer from the archives of AUBMC were reviewed over a period of 9 years, and the blocks that were used for immunohistochemical staining for ER, PR, Her-2/neu were selected. Immunohistochemical staining for CD30 (JCM182) and ALK (5A4 and D5F3) was performed.Two hundred eighty-four cases were identified (2 cases were male), with a mean age of 55 ±â€Š12. CD30 and ALK expression was not seen in any of the cases.Our cohort showed complete negativity to both CD30 and ALK, adding to the conflicting data available in the literature, and more studies are needed to reliably identify a trend of expression of CD30 and ALK in breast carcinoma, especially in the Middle East.


Asunto(s)
Quinasa de Linfoma Anaplásico/metabolismo , Neoplasias de la Mama/metabolismo , Antígeno Ki-1/metabolismo , Adulto , Anciano , Neoplasias de la Mama/patología , Estudios de Cohortes , Femenino , Humanos , Masculino , Persona de Mediana Edad
3.
BMC Urol ; 18(1): 13, 2018 Mar 05.
Artículo en Inglés | MEDLINE | ID: mdl-29506507

RESUMEN

BACKGROUND: Positive surgical margin (PSM) is a predictor of biochemical recurrence (BCR) following radical prostatectomy (RP). Attempts to stratify PSM based on linear length, Gleason score, location and number have failed to add to predictive models using margin status alone. We evaluated the prognostic significance of Ki-67 expression in this setting. METHODS: Immunohistochemical staining for Ki-67 was done on prostatectomy specimens from 117 patients who had a PSM. Ki67 expression was measured at the margin and in the index lesion. Patients were dichotomized based on Ki-67 expression into three groups. Group 1 with no Ki-67 expression, Group 2 with Ki-67 ≤ 2%, and Group 3 with Ki-67 ≥ 3%. To eliminate the impact of the adjuvant treatment (AT) on the outcome, data were analyzed by the Cox proportional hazards in which AT was Considered as a time-dependent covariate. RESULTS: The discordance rate of Ki-67 expression between matched index lesion and margin specimens was 44/117 (37.6%). There was a trend for higher risk of BCR (HR:2.06, (0.97-4.43), P = 0.06) in patients expressing high Ki67 at the surgical margin although this was not statistically significant. However High Ki-67 expression in the index lesion was an independent predictive factor for BCR in this subset of patients. (HR:4, (1.64-9.80), P = 0.002). CONCLUSION: High Ki67 expression in the index prostate cancer lesion is an independent predictor of BCR in patients with positive surgical margin following radical prostatectomy. Our findings need to be validated in a larger cohort.


Asunto(s)
Biomarcadores de Tumor/biosíntesis , Antígeno Ki-67/biosíntesis , Márgenes de Escisión , Recurrencia Local de Neoplasia/metabolismo , Prostatectomía/tendencias , Neoplasias de la Próstata/metabolismo , Anciano , Biomarcadores de Tumor/genética , Estudios de Seguimiento , Regulación Neoplásica de la Expresión Génica , Humanos , Antígeno Ki-67/genética , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/diagnóstico , Valor Predictivo de las Pruebas , Neoplasias de la Próstata/diagnóstico , Neoplasias de la Próstata/cirugía , Estudios Retrospectivos
5.
Am J Dermatopathol ; 40(3): e30-e31, 2018 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-29470307
6.
Am J Dermatopathol ; 37(4): e49-52, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25051105

RESUMEN

Epidermolytic acanthoma (EA) is a rare benign acquired tumor that most commonly presents as a solitary lesion on the trunk, extremities, male genitalia, and face with a male predominance. Cases occurring on the female genitalia have rarely been reported. We describe the case of multiple localized EAs occurring on the vulva of a 31-year-old woman presenting with the chief complaint of vulvar pruritus. Although rare to occur in the vulvar area, EAs should be included in the differential diagnosis of multiple vulvar papules.


Asunto(s)
Acantoma/patología , Neoplasias Primarias Múltiples/patología , Prurito Vulvar/etiología , Neoplasias Cutáneas/patología , Neoplasias de la Vulva/patología , Acantoma/complicaciones , Adulto , Biopsia , Diagnóstico Diferencial , Femenino , Humanos , Neoplasias Primarias Múltiples/complicaciones , Valor Predictivo de las Pruebas , Neoplasias Cutáneas/complicaciones , Neoplasias de la Vulva/complicaciones
8.
Am J Dermatopathol ; 36(10): 800-6, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25079199

RESUMEN

Prurigo pigmentosa (PP) is a rare inflammatory dermatosis originally reported in Japan. Since then, most reports have originated from Asia, and to a lesser extent from Europe. Although the pathogenesis remains unclear, it is now established that PP is linked to ketoacidotic states. Four patients diagnosed with PP were identified from the dermatopathology database at the American University of Beirut Medical Center between January 2009 and December 2013. Clinicopathologic findings in the 4 patients were similar to those previously reported in the literature. The patients were all female with a mean age of 23.5 years. They all presented with itchy erythematous reticulated papulovesicles/plaques leaving variable reticulated brownish patches. Two patients had, in addition, annular lesions arranged en cocarde and pustules, respectively. In 3 patients, the rash was associated with fasting or dieting. The rash had a predilection to the trunk and proximal part of the upper extremities. One patient had intergluteal area involvement. Two biopsy specimens revealed psoriasiform hyperplasia and neutrophilic exocytosis mimicking psoriasis or an impetiginized spongiotic dermatitis. One biopsy specimen exhibited a mild superficial perivascular lymphocytic infiltrate with ballooning and reticular degeneration, a picture mimicking a viral exanthema. Another biopsy specimen exhibited a picture similar to chronic spongiotic dermatitis. Although mostly described in Japan, PP has been described much less frequently in the Middle East region likely due to mis/underdiagnosis. Therefore, increased awareness is necessary especially because fasting is a common religious practice among Arab countries. Further investigations are necessary to better understand the etiopathogenesis of this rare entity.


Asunto(s)
Prurigo/patología , Adolescente , Adulto , Antibacterianos/uso terapéutico , Doxiciclina/uso terapéutico , Femenino , Humanos , Líbano , Minociclina/uso terapéutico , Prurigo/tratamiento farmacológico , Arabia Saudita , Adulto Joven
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...