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Aspergilose invasiva do seio esfenoidal e paralisia do sexto nervo

Invasive aspergillosis of the sphenoid sinus manifested as an isolated sixth nerve palsy

Resumos

A aspergilose do seio esfenoidal é doença rara e pode se apresentar sob diferentes formas clínicas devido a envolvimento de. diversas estruturas anatomicamente adjacentes ao seio esfenoidal. Relatamos o caso de uma paciente com 74 anos de idade, diabética, com paralisia do sexto nervo esquerdo secundária a aspergilose do seio esfenoidal. Não havia história de cefaléia ou de queixas sugestivas de alergia respiratória. A tomografia computadorizada revelou lesão etmoídeo-esfenoidal à esquerda, com presença de imagem cálcica em seu interior e destruição óssea. A paciente foi submetida a cirurgia com retirada de material necrótico e debridamento da lesão, seguida de tratamento com anfote-ricina B e 5-fluorocitosina. Exame histológico revelou a presença de hifas sugestivas de Aspergilius sp. Após três meses de tratamento a paciente apresentou recuperação total da paresia do nervo abducente. O diagnóstico clínico pré-operatório de aspergilose do seio esfenoidal é difícil. No entanto, a presença de imagem cálcica ou de densidade metálica à radiografia simples de crânio ou à tomografia computadorizada sugere fortemente o diagnóstico. O exame hihstológico revela a presença de hifas dicotomatosas em 45,0 típicas do Aspergilius. O tratamento inclui excisão e debridamento da lesão seguida do uso de anfo-tericina B associada a 5-fluorocitosina ou rifampicina.

aspergilose; seio esfenoidal; VI nervo craniano


A case of aspergillosis of the sphenoid sinus manifested as an isolated sixth nerve palsy occurred in a 74-year old diabetic woman who had no complaints of headache or symptoms suggestive of sinusitis. A CT scan demonstrated a large mass occupying the sphenoid and ethmoid sinuses extending posteriorly to the clivus. There was a calcific density within the opacified sinus and bony erosion of the sphenoid walls and the sella turcica. The patient underwent a sublabial transseptal sphenoidotomy with removal of necrotic material and debridment of the surrounding tissue. Histologic examination revealed granulation tissue with chronic inflammatory cells and abundant dichotomously branching hyphae. Postoperatively the patient was given amphotericin B and 5-fluorocytosine. Three months later the sixth nerve palsy had completely cleared and the patient had no other complaint. Sphenoid sinus aspergillosis is a rare disease and may have variable clinical manifestations according to involvement of different structures located closely to the sinus. Our patient developed an isolated sixth nerve palsy which was at onset considered to be caused by diabetes. Computerized tomography scans disclosed abnormalities strongly indicative of invasive aspergillosis. It illustrates the need of appropriate work-up in cases of an isolated sixth nerve palsy even in patients with diabetes or other risk factors.

aspergillosis; sphenoid sinus; VI cranial nerve


Maria Inês de Vilhena Lana-Peixoto; Marco Aurélio Lana-Peixoto

Professor Adjunto de Neurologia, Faculdade de Medicina, Universidade Federal de Minas Gerais (UFMG)

RESUMO

A aspergilose do seio esfenoidal é doença rara e pode se apresentar sob diferentes formas clínicas devido a envolvimento de. diversas estruturas anatomicamente adjacentes ao seio esfenoidal. Relatamos o caso de uma paciente com 74 anos de idade, diabética, com paralisia do sexto nervo esquerdo secundária a aspergilose do seio esfenoidal. Não havia história de cefaléia ou de queixas sugestivas de alergia respiratória. A tomografia computadorizada revelou lesão etmoídeo-esfenoidal à esquerda, com presença de imagem cálcica em seu interior e destruição óssea. A paciente foi submetida a cirurgia com retirada de material necrótico e debridamento da lesão, seguida de tratamento com anfote-ricina B e 5-fluorocitosina. Exame histológico revelou a presença de hifas sugestivas de Aspergilius sp. Após três meses de tratamento a paciente apresentou recuperação total da paresia do nervo abducente. O diagnóstico clínico pré-operatório de aspergilose do seio esfenoidal é difícil. No entanto, a presença de imagem cálcica ou de densidade metálica à radiografia simples de crânio ou à tomografia computadorizada sugere fortemente o diagnóstico. O exame hihstológico revela a presença de hifas dicotomatosas em 45,0 típicas do Aspergilius. O tratamento inclui excisão e debridamento da lesão seguida do uso de anfo-tericina B associada a 5-fluorocitosina ou rifampicina.

Palavras chave: aspergilose, seio esfenoidal, VI nervo craniano.

SUMMARY

A case of aspergillosis of the sphenoid sinus manifested as an isolated sixth nerve palsy occurred in a 74-year old diabetic woman who had no complaints of headache or symptoms suggestive of sinusitis. A CT scan demonstrated a large mass occupying the sphenoid and ethmoid sinuses extending posteriorly to the clivus. There was a calcific density within the opacified sinus and bony erosion of the sphenoid walls and the sella turcica. The patient underwent a sublabial transseptal sphenoidotomy with removal of necrotic material and debridment of the surrounding tissue. Histologic examination revealed granulation tissue with chronic inflammatory cells and abundant dichotomously branching hyphae. Postoperatively the patient was given amphotericin B and 5-fluorocytosine. Three months later the sixth nerve palsy had completely cleared and the patient had no other complaint. Sphenoid sinus aspergillosis is a rare disease and may have variable clinical manifestations according to involvement of different structures located closely to the sinus. Our patient developed an isolated sixth nerve palsy which was at onset considered to be caused by diabetes. Computerized tomography scans disclosed abnormalities strongly indicative of invasive aspergillosis. It illustrates the need of appropriate work-up in cases of an isolated sixth nerve palsy even in patients with diabetes or other risk factors.

Key words: aspergillosis, sphenoid sinus, VI cranial nerve.

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Dra. Maria Inês de Vilhena Lana-Peixoto — Departamento de Neurologia, Faculdade de Medicina, UFMG - Av. Alfredo Balena 190 - 30130 Belo Horizonte MG - Brasil.

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  • Aspergilose invasiva do seio esfenoidal e paralisia do sexto nervo

    Invasive aspergillosis of the sphenoid sinus manifested as an isolated sixth nerve palsy
  • Datas de Publicação

    • Publicação nesta coleção
      22 Fev 2011
    • Data do Fascículo
      Mar 1992
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