Another small linear splinter hemorrhage is seen here subungually on the left thumb of a patient with infective endocarditis and blood culture positive for Staphylococcus aureus.

• 感染性心内膜炎患者左手大拇指的指甲下可见小线型灶状出血，血培养呈金黄*色葡萄球菌阳性。