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1.
Rev. chil. infectol ; 31(6): 676-681, dic. 2014. tab
Article in Spanish | LILACS | ID: lil-734760

ABSTRACT

Background: Granulomatous lesions occur in tuberculosis (TB), other infections, toxic, allergic, and autoimmune diseases among others. In absence of a an acid-fast bacilli (AFB) confirmation of TB is necessary. Objective: To assess the efficacy of PCR for TB detection and to correlate with granuloma histology and AFB staining. Methods: We analyzed 380 fixed paraffin-embedded tissues (PETs) of granulomas with and without caseous necrosis; suppurative; sarcoidal; or of chronic nonspecific nature. Nested PCR-IS6110 for Mycobacterium tuberculosis complex (MTB) and a nested pan-Mycobacterium for the hsp65 gene were used for Mycobacterium spp detection. Results: PCR was more sensitive than AFB staining for all five catageories of granulomas: G1: PCR 71%, AFB staining 28%. G2: PCR 37%, AFB 8%. G3: PCR 17%, AFB staining 7%. G4: PCR 8%, AFB staining 4%. G5: PCR 6%, AFB staining 0%. Conclusions: Molecular diagnosis of TB using PCR-based testing is a fast, efficacious and sensitive method that increased the accuracy of PET histological diagnosis associated with granulomatous lesions.


Introducción: Lesiones granulomatosas ocurren en tuberculosis (TBC), otras infecciones, condiciones tóxicas, alérgicas y autoinmunes, entre otras. Con baciloscopia negativa, es necesario confirmar el diagnóstico de TBC. Objetivo: Evaluar la eficacia de la RPC para detectar TBC comparado con baciloscopia en relación a la histología del granuloma. Métodos: Analisis de 380 tejidos fijados en formalina e incluidos en parafina (TFFP) con diferentes tipos de granulomas: con necrosis caseosa; sin necrosis caseosa; supurativo; sarcoidal; a cuerpo extraño/inespecífico. Utilizamos RPC anidada-IS6110 para detección del complejo Mycobacterium tuberculosis (MTB) y una pan-RPC anidada-hsp65 para Mycobacterium spp. Resultados: La detección de TBC mediante RPC fue significativamente superior a baciloscopia en los cinco tipos de granuloma: G1: RPC 71%, baciloscopia 28%; G2: RPC 37%, baciloscopia 8%; G3: RPC 17%, baciloscopia 7%; G4: RPC 8%, baciloscopia 4%; G5: RPC 6%, baciloscopia 0%. Conclusión: El diagnóstico de TBC por RPC es un método rápido, eficaz y de gran sensibilidad, que aumenta la precisión del diagnóstico diferencial de lesiones granulomatosas de TFFP procesados rutinariamente en histopatología.


Subject(s)
Adolescent , Adult , Child , Child, Preschool , Female , Humans , Infant , Male , Young Adult , DNA, Bacterial/genetics , Granuloma/microbiology , Mycobacterium tuberculosis/genetics , Tuberculosis/diagnosis , Diagnosis, Differential , Formaldehyde , Granuloma/diagnosis , Paraffin Embedding , Polymerase Chain Reaction , Predictive Value of Tests , Sensitivity and Specificity , Staining and Labeling , Tissue Fixation
3.
Int. j. odontostomatol. (Print) ; 7(3): 427-432, Dec. 2013. ilus
Article in English | LILACS | ID: lil-696574

ABSTRACT

We report on a patient who presented to ENT services with right side epistaxis, frontal lobe headache, right infraorbital pain and the feeling of having a stuffy nose. CT and MRI were performed and later a biopsy confirmed the presence of sinonasal plasmocytoma. The Head and Neck oncology committee recommended radiotherapy as the choice of treatment. At the present time the patient is being followed on scheduled medical visits.


Se reporta el caso de un paciente que se presentó en el servicio de Otorrinolaringología con epistaxis, cefalea del lóbulo frontal derecho, dolor infraorbitario derecho y la sensación de tener la nariz tapada. Se realizaron TC y RNM, y luego una biopsia confirmó la presencia de un plasmocitoma nasosinusal. El comité de oncología de cabeza y cuello recomendó radioterapia como tratamiento de elección. En la actualidad, el paciente está en siguimiento y control en las visitas médicas regulares.


Subject(s)
Humans , Male , Middle Aged , Magnetic Resonance Imaging , Nose Neoplasms/diagnosis , Plasmacytoma/diagnosis , Tomography, X-Ray Computed , Nose Neoplasms/radiotherapy , Plasmacytoma/radiotherapy
4.
Int. j. odontostomatol. (Print) ; 6(3): 281-284, 2012. ilus
Article in English | LILACS | ID: lil-676186

ABSTRACT

We report on a patient who presented to our clinic with a volume increase and pain at left maxillary region. A biopsy of the area was performed and the lesion was diagnosed as differentiated squamous cell carcinoma of the type cuniculatum. Due to the size of the tumor and compromise of vital intracraneal structures it was decided to perform surgical drainage and later is evaluated because of the tumor persistence to ultimately use palliative care...


Se presenta a una paciente que acudió a nuestra clínica con un aumento de volumen y dolor en región maxilar izquierda. Se realizó una biopsia del área y la lesión fue diagnosticada como carcinoma de células escamosas diferenciado de tipo cuniculatum. Debido al tamaño del tumor y el compromiso de estructuras intracraneales vitales, se decidió realizar un drenaje quirúrgico y posteriormente se evalúa la causa de la persistencia del tumor para finalmente entregar cuidados paliativos...


Subject(s)
Humans , Male , Middle Aged , Carcinoma, Squamous Cell/surgery , Carcinoma, Squamous Cell/diagnosis , Paranasal Sinus Neoplasms/surgery , Paranasal Sinus Neoplasms/diagnosis , Biopsy , Tomography, X-Ray Computed
5.
Int. j. odontostomatol. (Print) ; 5(3): 304-308, dic. 2011. ilus
Article in English | LILACS | ID: lil-612106

ABSTRACT

We report on a patient who presented at our clinic with a growth of the right palate of twenty years duration. A biopsy of the area was performed and the lesion was diagnosed as low-grade mucoepidermoid carcinoma (MEC). Due to the size of the tumor, it was decided to begin treatment with radiotherapy followed by chemotherapy. Once the initial treatment was completed, the lesion was reevaluated and surgery followed by reconstruction was recommended. The Patient rejected the recommended treatment and opted to enrolled in a pain management, palliative care program.


Reportamos sobre un paciente que se presentó con un crecimiento del paladar derecho de veinte años de evolución. Se realizó una biopsia del área y se diagnosticó la lesión como carcinoma mucoepidermoide (MEC) bajo grado. Debido al tamaño del tumor, se decidió comenzar el tratamiento con radioterapia seguida de quimioterapia. Una vez que el tratamiento inicial se completó, la lesión fue reevaluada y se recomendó la cirugía seguida de reconstrucción. El paciente rechazó el tratamiento recomendado y optó por seguir un tratamiento de manejo del dolor, programa de cuidados paliativos.


Subject(s)
Humans , Male , Middle Aged , Carcinoma, Mucoepidermoid/diagnosis , Carcinoma, Mucoepidermoid/therapy , Paranasal Sinus Neoplasms/diagnosis , Paranasal Sinus Neoplasms/therapy , Magnetic Resonance Imaging , Tomography, X-Ray Computed , Treatment Refusal
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