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Gaspar Vianna

Gaspar de Oliveira Vianna, Brazilian anatomical pathologist (Belém 11 May 1885 – Rio de Janeiro 14 July 1914)
 
Authored 23 scientific works
 

ACHIEVEMENTS

First anatomopathological study on Chagas disease

Described rhizonema or axoneme in Leishmania flagelli (1911)

Described lesions of nervous system in Chagas disease (1911)

Contribuição para o estudo da anatomia pathologica da moléstia de “Carlos Chagas” (Esquisotripanoze humana ou tireoidite parasitária). Mem. Inst. Oswaldo Cruz 3(2):276-94, 1911 


Showed the existence of leishmaniform bodies in myocardium fibers in human and animals

Discovered intracellular multiplication of Trypanosoma cruzi via leishmanias independently from Max Hartmann

Discovered non-flagellate and leishmanioids tissue forms of Trypanosoma cruzi, found in muscle fibers, brain and thyroid  known as Gaspar Vianna forms or nests, pathognomic of Chagas disease

Reported for the first time the hepatic involvement in paracoccidioidomycosis (1913)

First described phenomenon of crypto-sporulation (1914) independently from P. Dias da Silva 

With Miguel Pereira described lymphangitic form of blastomycosis 

Discovered treatment of cutaneous leishmaniasis and venereal granuloma employing intravenous emetic tartar 1% in solution (1912)
 
 

DESCRIBED TAXA

With Henrique Aragão  Calymmatobacterium granumolatis or Aragão-Viana bacterium  etiologic agent of venereal granuloma  (1912) and Treponema minimum 1913  

Leishmania brasiliensis 1911, etiologic agent of American cutaneous leishmaniasis

With Moses fungi Proteomyces infestans (1913)

With Miguel Pereira a new species of Blastomycetes  

A new species of spirochetes mammalian parasite
 
 

HONORS

Genera Viannaia Travassos 1914 & Viannella Travassos 1920 (Nematoda)  

Subgenus Viannaia Lainson & Shaw 1987 (Protozoa)

Subgenus Viannamyia Mangabeira Filho 1941 (Diptera)