[Giant cell arteritis revealed by bilateral internuclear ophthalmoplegia].

Introduction: We report an original observation of giant cell arteritis (GCA) revealed by bilateral internuclear ophthalmoplegia due to parenchymal inflammatory involvement of the central nervous system.

Case Report: An 84-year-old female patient presented to our emergency department because of diplopia due to bilateral internuclear ophthalmoplegia. Cerebral MRI found a T2 hypersignal with enhancement after gadolinium injection in T1 sequence of the two medial longitudinal fascicles.

Platelet features allow to differentiate immune thrombocytopenia from inherited thrombocytopenia.

Immune thrombocytopenia (ITP) is an acquired bleeding disorder, for which no specific diagnostic test exists. Inherited thrombocytopenia (IT) can mimic ITP and lead to unappropriated management with significant morbidity. Here, in small cohorts of these two disorders, we explored whether platelet sialylation and platelet activation could allow to discriminate the two conditions.