24 research outputs found
Técnicas histopatológicas no diagnóstico de criptococose por Cryptococcus deficiente de cápsula: relato de caso Histopathological techniques for diagnosing cryptococcosis due to capsule-deficient Cryptococcus: case report
Caso de criptococose por Cryptococcus deficiente de cápsula, no qual cultivo do espĂ©cime clĂnico e pesquisa do antĂgeno capsular no lĂquor e soro foram negativos. As tĂ©cnicas histopatolĂłgicas foram: Hematoxilina-eosina, Grocott, Mucicarmim de Mayer e Fontana-Masson. Confirmou-se o diagnĂłstico do Cryptococcus deficiente de cápsula pela tĂ©cnica de Fontana-Masson e pela imunofluorescĂŞncia direta. É discutida a potencialidade das tĂ©cnicas histoquĂmicas.<br>A case of cryptococcosis due to capsule-deficient Cryptococcus is presented, in which culturing of the clinical specimen and tests for capsular antigen in cerebrospinal fluid and serum were negative. The histopathological techniques evaluated were hematoxylin-eosin, Grocott methenamine silver, Mayer’s mucicarmine and Fontana-Masson. The diagnosis of cryptococcosis due to capsule-deficient Cryptococcus was confirmed by means of the Fontana-Masson technique and by direct immunofluorescence. The potential of the histochemical techniques is discussed