Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 33
Filtrar
2.
Clin Exp Dermatol ; 39(5): 570-6, 2014 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-24934910

RESUMEN

BACKGROUND: Lentigo maligna (LM) and lentigo maligna melanoma (LMM) can be difficult to manage surgically. Predetermined margins can be inadequate because of subclinical spread, or can affect function when margins are adjacent to the eye or mouth. AIM: To describe our 5-year experience in Nottingham of using the staged square procedure (Johnson square) in excising difficult facial LM and LMM. METHODS: The square procedure is a staged technique useful for ill-defined lesions and for lesions that have a high recurrence rate due to subclinical spread. It uses paraffin wax-embedded peripheral vertical sections for margin control, ensuring complete clearance as the surgical margins are usually examined at distances of 2-5 mm from the periphery of the lesion. RESULTS: We treated 21 patients with LM or LMM with the staged square procedure over a 5-year period. Of the 21 patients, 10 needed only one stage of surgery, 6 needed two stages, 3 needed three stages and 2 needed four stages. To date, there has been only one recurrence, which was of an extensive lesion that crossed the medial canthus, making margin control impossible because of the anatomical limitations. CONCLUSIONS: The staged square procedure is an effective treatment for LM and LMM. It attempts to conserve tissue while ensuring a higher clearance rate. This offers favourable cosmetic outcomes and better prognosis, especially for facial LM and LMM.


Asunto(s)
Neoplasias Faciales/cirugía , Peca Melanótica de Hutchinson/cirugía , Cirugía de Mohs/métodos , Neoplasias Cutáneas/cirugía , Anciano , Anciano de 80 o más Años , Neoplasias Faciales/patología , Femenino , Humanos , Peca Melanótica de Hutchinson/patología , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Neoplasias Cutáneas/patología
4.
Clin Exp Dermatol ; 37(3): 245-8, 2012 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-22409520

RESUMEN

Many types of histiocytoses have been described. We present a case of a 56-year-old woman who presented with multiple nodules on the hands. On histological examination of an excision biopsy, a mainly dermal lesion was seen, with scattered mononuclear inflammatory cells and occasional multinucleated cells in the background. The tumour was composed of short spindle-shaped histiocyte-like cells with vesicular nuclei and small nucleoli. These cells were positive for CD68 and focally positive for smooth-muscle actin. There was no lipid or haemosiderin pigment, and no cholesterol clefts. Further investigations did not find evidence of bony or systemic involvement. The non-Langerhans cell histiocytoses, also known as non-X histiocytoses, are rare and of unknown aetiology. Clinicopathologically, this case does not seem to fit with any of the recognized subtypes, and we propose that it may represent a previously undescribed variant of the disease.


Asunto(s)
Dermatosis de la Mano/diagnóstico , Histiocitosis/diagnóstico , Biomarcadores/análisis , Femenino , Dedos , Humanos , Inmunohistoquímica , Persona de Mediana Edad
5.
Clin Exp Dermatol ; 36(6): 635-7, 2011 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-21575038

RESUMEN

Follicular mucinosis is a rare inflammatory disorder of unknown aetiology, characterized by mucin deposition in hair follicles and sebaceous glands. FM can occur as a benign idiopathic primary disorder or secondary to malignant lymphoproliferative processes, most notably mycosis fungoides. We report a novel case of FM developing after autologous stem-cell transplantation for multiple myeloma, a correlation not previously reported in the literature.


Asunto(s)
Mucinosis Folicular/etiología , Mieloma Múltiple/terapia , Neoplasias Cutáneas/terapia , Trasplante de Células Madre/efectos adversos , Humanos , Masculino , Persona de Mediana Edad , Trasplante Autólogo
8.
Clin Exp Dermatol ; 33(1): 36-9, 2008 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-17983456

RESUMEN

Mastocytosis is a disorder characterised by abnormal mast cell proliferation. The diverse spectrum of clinical presentations is dependent on the tissues and organs involved. We report a rare case of aggressive systemic mastocytosis presenting in utero with diffuse cutaneous involvement, and haematological abnormalities. There is little published evidence to guide treatment.


Asunto(s)
Antineoplásicos Fitogénicos/uso terapéutico , Sufrimiento Fetal/etiología , Mastocitos/patología , Mastocitosis Sistémica/tratamiento farmacológico , Enfermedades de la Piel/etiología , Vincristina/uso terapéutico , Ascitis/etiología , Resultado Fatal , Femenino , Sufrimiento Fetal/patología , Hepatomegalia/etiología , Humanos , Recién Nacido , Masculino , Mastocitosis Sistémica/complicaciones , Mastocitosis Sistémica/patología , Embarazo , Atención Prenatal , Enfermedades de la Piel/patología , Esplenomegalia/etiología , Insuficiencia del Tratamiento
10.
Clin Exp Dermatol ; 31(5): 741-5, 2006 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-16901332

RESUMEN

There has been a recent dramatic re-emergence of syphilis in the UK. This article describes the varied clinical manifestations of secondary syphilis and describes the diagnosis and current guidelines for treatment, especially in association with human immunodeficiency virus infection.


Asunto(s)
Sífilis/diagnóstico , Infecciones Oportunistas Relacionadas con el SIDA/epidemiología , Femenino , Infecciones por VIH/complicaciones , Humanos , Masculino , Penicilinas/uso terapéutico , Guías de Práctica Clínica como Asunto , Sífilis/epidemiología , Sífilis/terapia , Serodiagnóstico de la Sífilis/métodos
11.
Dermatol Online J ; 12(1): 17, 2006 Jan 27.
Artículo en Inglés | MEDLINE | ID: mdl-16638385

RESUMEN

We present an unusual case of eccrine porocarcinoma in that diagnosis was delayed for many years after the initial lesion appeared, resulting in relatively large tumor.


Asunto(s)
Acrospiroma/patología , Pierna , Neoplasias de las Glándulas Sudoríparas/patología , Acrospiroma/cirugía , Anciano , Humanos , Masculino , Invasividad Neoplásica , Neoplasias de las Glándulas Sudoríparas/cirugía
13.
Clin Exp Dermatol ; 30(4): 382-4, 2005 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-15953076

RESUMEN

The development of a squamous cell carcinoma (SCC) in a linear epidermal naevus is a rare event previously reported in long-standing and often extensive lesions of middle-aged to elderly patients. To the best of our knowledge, this case appears to be only the second report of an SCC arising in a linear epidermal naevus in a young patient and the first report of two SCCs developing in a small epidermal naevus, over a short time, in a young patient with no other risk factors.


Asunto(s)
Carcinoma de Células Escamosas/patología , Neoplasias Primarias Secundarias/patología , Nevo Pigmentado/patología , Neoplasias Cutáneas/patología , Adulto , Femenino , Humanos
14.
Eur J Cancer ; 33(10): 1638-42, 1997 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-9389927

RESUMEN

Between 1973 and 1993, 529 patients aged 15 years and over with Hodgkin's disease (HD) were entered into a lymphoma registry. Twenty-eight cases (1 only diagnosed at autopsy) of histologically proven HD in patients aged 70 years or older were identified. The distribution of sex, 'B' symptoms, histology and stage was not significantly different from that of younger patients, except for the fact that there were no patients aged 70 years or older with lymphocyte predominant HD. Nineteen patients were treated radically, 5 patients palliatively and 4 patients received no radiotherapy or chemotherapy. Three of the 14 patients treated with chemotherapy achieved the planned dose intensity. The cause-specific 5-year survival was 75% for patients aged 15-69 years and 28% for patients aged 70 years and over (logrank chi(2) = 43.7, P < 0.00001). The younger and older groups treated with radical intent had complete response rates of 97% and 74%, respectively (logrank chi(2) = 17.91, P < 0.00001) and relapse rates at 5 years of 27% and 56%, respectively (logrank chi(2) = 4.86, P = 0.0275). The main reason for the poorer prognosis of patients aged 70 years and over was the increasing difficulty of chemotherapy delivery associated with advancing age.


Asunto(s)
Enfermedad de Hodgkin/terapia , Factores de Edad , Anciano , Anciano de 80 o más Años , Análisis de Varianza , Inglaterra/epidemiología , Femenino , Enfermedad de Hodgkin/epidemiología , Enfermedad de Hodgkin/patología , Humanos , Masculino , Pronóstico , Sistema de Registros , Distribución por Sexo , Tasa de Supervivencia , Resultado del Tratamiento
15.
Int J Gynecol Pathol ; 16(3): 272-8, 1997 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-9421094

RESUMEN

A 55-year-old woman, who was found to have malignant squamous cells on a routine cervical smear, underwent a conization biopsy, followed by hysterectomy with bilateral salpingo-oophorectomy. No gross tumor was present in the uterus, but both ovaries, which were of normal size, contained multiple cysts filled with light brown, soft material. Microscopic examination showed squamous cell carcinoma in situ of the cervix with contiguous spread to the endometrium, fallopian tubes, and ovaries; squamous cell carcinoma extensively replaced the endometrial and tubal epithelium, focally invaded the wall of the fallopian tubes, and involved the parenchyma of both ovaries. Although an invasive cervical carcinoma occasionally spreads to the ovary, this case illustrates that exceptionally an in situ tumor spreads along the epithelium of the upper genital tract and the ovarian surface and invades the ovary and tubes. The detection of human papillomavirus DNA in the cervical, endometrial, tubal, and ovarian tumors by the polymerase chain reaction suggests a role for human papilloma virus infection in this case.


Asunto(s)
Carcinoma in Situ/patología , Carcinoma de Células Escamosas/patología , Neoplasias Endometriales/secundario , Neoplasias de las Trompas Uterinas/secundario , Neoplasias Ováricas/secundario , Papillomaviridae/aislamiento & purificación , Neoplasias del Cuello Uterino/patología , Carcinoma in Situ/química , Carcinoma in Situ/virología , Carcinoma de Células Escamosas/química , Carcinoma de Células Escamosas/virología , Neoplasias Endometriales/química , Neoplasias Endometriales/virología , Neoplasias de las Trompas Uterinas/química , Neoplasias de las Trompas Uterinas/virología , Femenino , Humanos , Inmunohistoquímica , Hibridación in Situ , Queratinas/análisis , Persona de Mediana Edad , Neoplasias Ováricas/química , Neoplasias Ováricas/virología , Neoplasias del Cuello Uterino/química , Neoplasias del Cuello Uterino/virología
16.
Anticancer Res ; 17(3C): 2335-8, 1997.
Artículo en Inglés | MEDLINE | ID: mdl-9245247

RESUMEN

BACKGROUND: male breast cancer is uncommon and studies regarding the potential clinical relevance of the histopathological and immunohistochemical features are infrequently reported. MATERIALS AND METHODS: We investigated the biological characteristics of forty-one male patients with invasive breast cancer by assessing histopathological and multiple immunohistochemical features. RESULTS: The majority were no special type (ductal) (37/41), lobular cancer was not seen. 73% were histological grade 3, 93% were positive for oestrogen receptor and 73% for progesterone receptor. The proportion of cancers positive for c-ebB-2 (45%), EGFR (20%), p53 (58%), MiB1 (40%), NCRC11 (78%), were similar to reports for female breast cancer. Nonsignificant associations between poor survival outcome and grade 3 tumours, and positive tissue staining for MiB1 and p53 were seen. CONCLUSION: While there ar similarities in the biological features of breast cancer in males and females, some differences were identified. Male breast cancer is more likely to be grade 3 tumours and hormone receptor positive.


Asunto(s)
Neoplasias de la Mama Masculina/patología , Biomarcadores de Tumor/análisis , Neoplasias de la Mama/patología , Neoplasias de la Mama Masculina/mortalidad , Neoplasias de la Mama Masculina/radioterapia , Neoplasias de la Mama Masculina/cirugía , Receptores ErbB/análisis , Femenino , Estudios de Seguimiento , Humanos , Inmunohistoquímica , Masculino , Mucina-1/análisis , Invasividad Neoplásica , Pronóstico , Receptor ErbB-2/análisis , Receptores de Estrógenos/análisis , Receptores de Progesterona/análisis , Estudios Retrospectivos , Análisis de Supervivencia , Factores de Tiempo , Proteína p53 Supresora de Tumor/análisis
18.
Am J Surg ; 173(3): 185-8, 1997 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-9124623

RESUMEN

BACKGROUND: It is unclear whether breast cancer has a similar prognosis in males and females. METHODS: A 20-year retrospective study of all male breast cancer patients in our region was undertaken. We compared this series with a group of females matched for the major prognostic factors and an unmatched series of female patients treated over the same period. RESULTS: Forty-one patients with invasive cancer and 2 with ductal carcinoma in situ were identified. One invasive cancer was treated with radiotherapy, 40 had surgery. Local recurrence occurred in 23% and axillary recurrence in 40% of cases. Male and female patients (n = 123) matched for the major prognostic factors showed a similar outcome for disease-free interval (P = 0.90) and survival (P = 0.27). However, both the above groups had a significantly worse outcome than the unmatched series of female patients with breast cancer. CONCLUSIONS: When prognostic factors are allowed for, male and female breast cancer patients have a similar outcome. This suggests that such features should be taken into account when determining management for males with breast cancer just as they are in females.


Asunto(s)
Neoplasias de la Mama/terapia , Adulto , Anciano , Anciano de 80 o más Años , Neoplasias de la Mama/diagnóstico , Neoplasias de la Mama/mortalidad , Neoplasias de la Mama/patología , Neoplasias de la Mama Masculina/diagnóstico , Neoplasias de la Mama Masculina/mortalidad , Neoplasias de la Mama Masculina/patología , Neoplasias de la Mama Masculina/terapia , Supervivencia sin Enfermedad , Femenino , Humanos , Metástasis Linfática , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia , Pronóstico , Estudios Retrospectivos , Tasa de Supervivencia , Resultado del Tratamiento
19.
Br J Cancer ; 75(2): 221-9, 1997.
Artículo en Inglés | MEDLINE | ID: mdl-9010030

RESUMEN

To invade and metastasize, carcinomas must penetrate or lose their epithelial basement membrane (EBM), and then penetrate basement membranes (BMs) surrounding blood vessels, lymphatics, nerves and muscle cells. Knowledge of the composition of different BMs is necessary, so that appropriate antibodies and DNA probes are used to analyse these events. Laminin and type IV collagen are the principal BM components. However, recent studies show these two proteins exist in various isoforms, each of which is a heterotrimer of different subunit polypeptides. In this study, we analysed the distribution of laminin subunits, alpha 1 (lam), alpha 2 (lam), beta 1(lam), beta 2(lam) and gamma 1 (lam), and collagen IV subunits, alpha 1(IV), alpha 3(IV), alpha 4(IV) and alpha 5 (IV), in normal and neoplastic tissues of colorectum and breast. Subunits alpha 1(IV), alpha 1(lam), beta 1(lam) and gamma 1(lam) were detected in all BMs, while the distribution of alpha 3(IV), alpha 4(IV), alpha 5(IV) and alpha 2(lam) was much more restricted. In carcinomas, EBM staining for all subunits was invariably discontinuous or absent, consistent with the presence of complete EBM breaks. Use of antibody to alpha 1(lam) selectively stained the EBMs of carcinomas. Strong vascular staining for alpha 1(lam), beta 1(lam), gamma 1(lam) and alpha 1(IV) suggests an abundance of BM proteins in vessel walls, which may aid tumour cell attachment before vascular invasion. Within carcinomas, vascular BM staining for beta 2(lam) was clearly weaker than in normal tissues, which may reflect incomplete maturation of these vessels.


Asunto(s)
Membrana Basal/metabolismo , Neoplasias de la Mama/metabolismo , Colágeno/metabolismo , Neoplasias Colorrectales/metabolismo , Laminina/metabolismo , Adenoma/metabolismo , Anticuerpos Monoclonales , Vasos Sanguíneos/metabolismo , Carcinoma/metabolismo , Femenino , Fibroadenoma/metabolismo , Humanos , Técnicas para Inmunoenzimas , Mucosa Intestinal/metabolismo , Riñón/metabolismo , Metástasis de la Neoplasia
20.
Clin Oncol (R Coll Radiol) ; 8(6): 371-5, 1996.
Artículo en Inglés | MEDLINE | ID: mdl-8973853

RESUMEN

The pathological and clinical features were reviewed of all primary non-Hodgkin's lymphomas (NHL) of the thyroid gland diagnosed between 1973 and 1992 in the population (1.1 million) served by the Nottingham and North Nottinghamshire Health Authorities. Of the 43 patients with histologically proven NHL, three had low grade mucosa associated lymphoid tissue (MALT) lymphomas (Stage IEA, 2; Stage IIEA, 1), 35 had intermediate or high grade lymphomas, Stage IEA or IIEA (intermediate MALT, 2; high grade MALT, 14; B-cell diffuse centroblastic, 17; anaplastic large cell (Ki-1) of null cell type, 1; high grade unclassifiable, 1), and one had unclassifiable NHL Stage IIEA. One patient had Stage IIIEA disease (high grade MALT) and three had stage IVA disease (high grade MALT, 2; B-cell diffuse centroblastic, 1). The median age was 68 years (range 45-86) with a female: male ratio of 6:1. For the 35 patients with intermediate or high grade thyroid NHL (Stages IEA and IIEA) the 5- and 10-year cause specific survival was 60%. The 21 patients treated between 1985 and 1992 initially with chemotherapy (except stage IEA (< 5 cm diameter) had a 5-year cause specific survival of 69% (95% CI 48-90) compared with 46% (95% CI 19-73) for the 14 patients treated between 1973 and 1984 with initial radiotherapy (Chi 2 = 1.62). The survival of those patients with intermediate or high grade MALT lymphomas was not significantly greater than of those patients with B-cell diffuse centroblastic NHL.


Asunto(s)
Linfoma de Células B de la Zona Marginal , Linfoma no Hodgkin , Neoplasias de la Tiroides , Anciano , Anciano de 80 o más Años , Inglaterra/epidemiología , Femenino , Humanos , Linfoma de Células B de la Zona Marginal/tratamiento farmacológico , Linfoma de Células B de la Zona Marginal/mortalidad , Linfoma de Células B de la Zona Marginal/patología , Linfoma de Células B de la Zona Marginal/radioterapia , Linfoma no Hodgkin/tratamiento farmacológico , Linfoma no Hodgkin/mortalidad , Linfoma no Hodgkin/patología , Linfoma no Hodgkin/radioterapia , Masculino , Oncología Médica/tendencias , Persona de Mediana Edad , Estudios Retrospectivos , Análisis de Supervivencia , Neoplasias de la Tiroides/tratamiento farmacológico , Neoplasias de la Tiroides/mortalidad , Neoplasias de la Tiroides/patología , Neoplasias de la Tiroides/radioterapia
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA
...