OBJETIVO: Descrever as alterações observadas na camada de fibras nervosas da retina de olhos portadores de neurorretinite subaguda unilateral difusa (DUSN) em fase crônica e compará-las aos valores obtidos em olhos normais pelo analisador de fibras nervosas da retina (GDx®). MÉTODOS: Trata-se de estudo retrospectivo caso-controle, no qual foram avaliadas a camada de fibras nervosas retiniana (CFNR) de 49 olhos portadores da doença em fase crônica examinados entre maio/97 e dezembro/01. Os olhos com neurorretinite subaguda unilateral difusa foram comparados estatisticamente com olhos normais contralaterais (Grupo Controle I) e com olhos de pacientes sem doença ocular (Grupo Controle II). RESULTADOS: Os olhos dos grupos Controle I e II tiveram maior freqüência do status "within normal limits". Os olhos com neurorretinite subaguda unilateral difusa tiveram maior freqüência relativa dos status "outside normal limits" e "borderline". Os grupos Controle I e II apresentaram valores absolutos diferentes do Grupo Doente em praticamente todos os parâmetros testados (p<0,05), as exceções foram o parâmetro "Symetry" em relação aos 2 grupos controles, e dos parâmetros "Average thickness" e "Superior integral" com relação ao Grupo Controle II. CONCLUSÃO: Os pacientes acometidos por neurorretinite subaguda unilateral difusa em fase crônica apresentaram diminuição da espessura da neurorretinite subaguda unilateral difusa demonstrada ao GDx®. As áreas da retina que contam com maior suporte vascular e maior quantidade de fibras nervosas apresentaram maior diminuição no retardo da luz medido pelo analisador de fibras nervosas.

PURPOSE: To describe retinal nerve fiber layer changes in late-stage diffuse unilateral subacute neuroretinitis eyes and compare these results with healthy eyes observed through nerve fiber analyzer (GDx®). METHODS: This is a retrospective case-control study in which 49 eyes in late-stage diffuse unilateral subacute neuroretinitis were examined from May/97 to December/01. First, eyes with diffuse unilateral subacute neuroretinitis and healthy contralateral eyes (Control Group I) were statistically matched. Subsequently, eyes with diffuse unilateral subacute neuroretinitis were compared with eyes of healthy patients (Control Group II). RESULTS: Eyes from Control Groups I and II had higher relative frequency of "within normal limits" status. Eyes from the diffuse unilateral subacute neuroretinitis (DUSN) Group had higher frequency of "outside normal limits" and "borderline" status. Control Groups I and II had absolute values different from the DUSN Group regarding all parameters (p<0.05), except for Symmetry in Control Groups I and II, Average thickness and Superior Integral in control group II. CONCLUSION: Patients with late-stage diffuse unilateral subacute neuroretinitis presented presumed decrease in nerve fiber layer thickness shown by GDx®. Retinal zones with larger vascular support and larger amount of nerve fibers presented higher decrease in the delay of the reflected light measured by the nerve fiber analyzer.

Papyllary cystic tumor of the pancreas, so-called Frantz's tumor, is rare. Clinical presentation of this disease is usually a slowly growing abdominal mass with or without abdominal pain, affecting predominantly young females. Its pathogenesis is still unknown . Surgical resection is usually curative, and prognosis is excellent. The authors report two pancreatic tumor cases(Frantz's tumor) in women aged 26 and 31 years old. Pre operative assessment showed a solid-cystic tumor of the tail and body of the pancreas. An extended distal pancreatectomy was performed without splenic preservation.