A previously healthy, term, 5-week-old girl initially presented to her primary care physician with a solitary, enlarging scalp nodule. The infant was otherwise well without additional signs or symptoms of illness. Over the next several weeks, the nodule continued to grow, and additional lesions appeared on her scalp. An ultrasound of the primary nodule revealed a hypoechoic structure favored to represent a serosanguinous fluid collection. After evaluation by general surgery and dermatology, she underwent a scalp biopsy of the largest lesion. While biopsy specimen results were pending, her parents noted that she was developing increased irritability, difficulty closing her right eye, and facial weakness. She was referred to the emergency department where a right-sided facial droop involving the brow and forehead was noted. The skin biopsy specimen results, along with subsequent laboratory studies and imaging, led to the final diagnosis.

一名先前健康、足月、5 周大的女孩最初向她的初级保健医生提出了一个孤立的、增大的头皮结节。婴儿在其他方面很好，没有其他疾病迹象或症状。在接下来的几周里，结节继续生长，她的头皮上出现了额外的病变。原发结节的超声显示低回声结构有利于代表浆液性积液。经过普外科和皮肤科评估后，她接受了最大病灶的头皮活检。虽然活检标本结果尚未确定，但她的父母注意到她变得易怒、难以闭上右眼和面部无力。她被转诊到急诊室，在那里注意到涉及额头和前额的右侧面部下垂。