RESUMEN
Five out of 4,172 operated maxillary cysts (3 developed within the maxillary and 2 in the mandible) presented a malignant change of epithelium. In all these 5 cases histology demonstrated a transition from normal to cancerous epithelium. The overall percentage of malignant change was of 0.12%, with 0.077% for non-keratinized epithelium lining odontogenic cysts (3 cases) and 0.65%, that is 8 times higher, for keratinized ones (2 cases). Keratinization of cystic epithelium and chronic inflammatory lesions were the main risk factors.
Asunto(s)
Carcinoma de Células Escamosas/patología , Transformación Celular Neoplásica/patología , Enfermedades Mandibulares/patología , Neoplasias Mandibulares/patología , Enfermedades Maxilares/patología , Neoplasias Maxilares/patología , Quistes Odontogénicos/patología , Adulto , Anciano , Quiste Epidérmico/patología , Epitelio/patología , Femenino , Humanos , Queratinas , Masculino , Persona de Mediana Edad , Quiste Radicular/patologíaAsunto(s)
Úlcera Duodenal/tratamiento farmacológico , Esofagitis Péptica/tratamiento farmacológico , Ranitidina/uso terapéutico , Biopsia , Evaluación de Medicamentos , Úlcera Duodenal/complicaciones , Úlcera Duodenal/fisiopatología , Esofagitis Péptica/etiología , Esofagitis Péptica/fisiopatología , Esofagoscopía , Esófago/fisiopatología , Humanos , Concentración de Iones de Hidrógeno , ManometríaRESUMEN
There is much controversy regarding the chronic nonspecific duodenitis as autonomous clinical entity. We have studied 36 patients (16 women, 20 men), aged 24-59 years (mean age 37.8 years), with biliary dyspepsia and endoscopic changes suggesting "duodenitis"; in all patients the following investigations were carried out: gastric secretion, barium X-ray and histological examination of the duodenal mucosa specimens obtained by endoscopic biopsy. There was no significant difference between the patients with duodenitis and normal subjects regarding the maximal acid output. Unspecific radiological changes were noticed in 55.5% of patients with chronic duodenitis. Endoscopy showed varied changes of duodenal mucosa including edema, erythema, erosions and hypertrophic folds. Histology confirmed the presence of inflammation. The patients have been followed-up for three years and none of them developed duodenal ulcer. We conclude that chronic nonspecific duodenitis is an autonomous clinical entity.
Asunto(s)
Duodenitis/diagnóstico , Adulto , Biopsia , Enfermedad Crónica , Duodenoscopía , Duodeno/patología , Femenino , Mucosa Gástrica/metabolismo , Humanos , Masculino , Persona de Mediana EdadRESUMEN
Four cases (3 M, 1 F) of Lennert's lymphoma were presented. The age (38-76 years), the clinical aspect and the morphopathological features were characteristic. Despite an intensive chemotherapy, 3 of the 4 patients died between 2 and 16 months (mean survival time 7 months). The controversies about the nosological delimitation and the cellular nature of Lennert's lymphoma are presented. Because of the poor prognosis, it should be considered as a high-grade malignant non-Hodgkin lymphoma.
Asunto(s)
Linfoma/patología , Adulto , Anciano , Femenino , Histocitoquímica , Humanos , Ganglios Linfáticos/patología , Linfoma no Hodgkin/patología , Masculino , Persona de Mediana Edad , Coloración y EtiquetadoAsunto(s)
Adenocarcinoma/patología , Carcinoma de Células Escamosas/patología , Neoplasias Esofágicas/patología , Neoplasias Gástricas/patología , Adenocarcinoma/diagnóstico , Adulto , Anciano , Anciano de 80 o más Años , Biopsia , Carcinoma de Células Escamosas/diagnóstico , Cardias/patología , Neoplasias Esofágicas/diagnóstico , Unión Esofagogástrica/patología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Neoplasias Gástricas/diagnósticoRESUMEN
In order to obtain, after caesarean section, a uterine scar of the best quality, the authors have studied the role of trauma on the edges of the wound during the procedure, especially the role of haemostatic clamps. Clinical studies (hysterography) and the comparison with experimental scars on dog's uterus, operated at term, show that instrumental trauma of the edges of the uterine wound affects the quality of the scar.