RESUMEN
Three patients with eosinophilic meningitis (EoM) were investigated in two hospitals in Porto Alegre, Southern Brazil. These patients had a common exposure after the ingestion of raw mollusks in a religious ritual. Two of them had an uncommon presentation with intense lower distal extremities pain and small fiber neuropathy as defined by an electroneuromyography (ENMG) study. All three patients were positive for Angiostrongylus cantonensis serology and recovered after antihelminthic and anti-inflammatory treatment. Increased awareness of A. cantonensis infection is important to avoid new infections and to improved recognition and handling of cerebral angiostrongyliasis.
Asunto(s)
Angiostrongylus cantonensis/aislamiento & purificación , Brotes de Enfermedades , Eosinofilia/epidemiología , Meningitis/epidemiología , Infecciones por Strongylida/epidemiología , Adulto , Animales , Brasil/epidemiología , Eosinofilia/parasitología , Femenino , Humanos , Masculino , Meningitis/parasitología , Infecciones por Strongylida/parasitologíaRESUMEN
This study is a morphologic description of the recurrent laryngeal nerve (RLN) and of the number and size of motor units (MUs) in the thyroarytenoid (TA) muscle bilaterally of a human fetus aged 25 weeks. A quantitative analysis of RLN and MUs is presented to investigate similarities with equivalent structures in adults. In the fetus used in our study, the morphologic organization of the RLN was similar to that commonly described in the adult RLN. Moreover, as is observed in adult TA, the TA of the analyzed fetus, particularly the right TA, showed MUs typical of muscles with great motor accuracy. These results may be used to increase our knowledge of the features of the voice in adults and newborns.
Asunto(s)
Músculos Laríngeos/inervación , Neuronas Motoras/citología , Nervio Laríngeo Recurrente/embriología , Femenino , Feto/citología , Feto/inervación , Humanos , Músculos Laríngeos/citología , Músculos Laríngeos/embriología , Nervio Laríngeo Recurrente/citologíaRESUMEN
This study is the first detailed qualitative morphologic description of the vocal fold and its associated structures (false vocal fold, larynx ventricle, epithelium, mucous glands, blood vessels, and vocal ligament) of a human fetus aged 25 weeks. In addition, a quantitative analysis of thyroarytenoid (TA) muscle fiber orientation is presented to investigate similarities with adult TA. Histologic cross sections from the vocal fold and the anterior, middle, and posterior regions of the TA muscle were examined bilaterally, and both qualitative and quantitative analyses show that the vocal fold and most of the associated structures are completely established in the studied sample.
