RESUMO
Tissue microarray (TMA) technology is a high-throughput research tool, which has greatly facilitated and accelerated tissue analyses by in-situ technologies. TMAs are amenable to every research method that can be applied on the standard whole sections at enhanced speed. It plays a central role in target verification of results from cDNA arrays, expression profiling of tumors and tissues, and is proving to be a powerful platform for proteomic research. In this review article, primarily meant for students of pathology and oncology, we briefly discuss its basic methodology, applications and merits and limitations.
Assuntos
Técnicas Citológicas/métodos , Humanos , Imuno-Histoquímica/métodos , Técnicas de Diagnóstico Molecular , Neoplasias/genética , Análise de Sequência com Séries de Oligonucleotídeos/métodos , Prognóstico , Controle de Qualidade , Análise Serial de Tecidos/métodos , Biomarcadores Tumorais/genéticaRESUMO
Three patients with neuritis of the great auricular nerve (GAN) have been reported. Two patients seen by physicians and an otolaryngologist had prominent and tender cord along the neck with facial edema and history of fainting attack in one, and erythema and hyperaesthesia of the ear in the other simulating vascular occlusion, which were confirmed to be leprosy in Type 1 reaction by the dermatologist. In the third, cold abscess in the nerve that had persisted after anti-leprosy treatment was mistaken as tuberculous cervical lymphadenitis by a surgeon since aspiration had revealed acid-fast bacilli. The probable reasons for misdiagnosis include rarity of involvement of the GAN and its proximity to main blood vessels, and the need for careful interpretation of laboratory results.