RESUMEN
Two cases of an unusual finding of capsular pseudoinvasion in follicular thyroid adenomas after fine-needle aspiration (FNA) procedures are reported. These capsular breaches were noted along the hemorrhagic needle track, which traversed the normal peripheral thyroid parenchyma into the lesions. A reparative reaction was seen at some points along one of the tracks. Histologic examination also showed extrusion of the tumor parenchyma through the capsular interruption in one case. Surgical pathologists should be aware of this rare complication of FNA of thyroid follicular adenomas as a differential diagnosis of minimally invasive (encapsulated) follicular carcinoma.
Asunto(s)
Adenoma/patología , Biopsia con Aguja/efectos adversos , Neoplasias de la Tiroides/patología , Diagnóstico Diferencial , Femenino , Humanos , Persona de Mediana Edad , Invasividad NeoplásicaAsunto(s)
Leishmania/aislamiento & purificación , Adulto , Femenino , Humanos , Lactante , Isoenzimas/análisis , Leishmania/enzimología , Masculino , NicaraguaAsunto(s)
Leishmaniasis/epidemiología , Guerra , Adolescente , Adulto , Femenino , Humanos , Masculino , Nicaragua , Estados UnidosRESUMEN
The clinical aspects of mucocutaneous leishmaniasis in Nicaragua are examined for the first time. Data regarding 259 cases were collected by the authors in two health centres of a central region of the country. On the basis of clinical observations the multiple aetiology (i.e. L. mexicana complex and L. braziliensis complex) of the lesions is suggested. The problem is of increasing importance in Nicaragua because of greater public awareness and new settlements in the endemic area and so it deserves further research.