Primary stabbing headache (PSH) is a transient and localized headache disorder. Facial variants of this rare pain syndrome have not been previously described. Four patients (n = 2 female, 2 male) presented themselves to our headache and facial pain outpatient clinic. They suffered daily from several dozen to several hundred short-lasting stabbing pain paroxysms primarily in the second and third trigeminal branches (V2 and V3) without lateral predominance. These non-neuralgic pain paroxysms did not strictly follow dermatomes, were not accompanied by trigeminal autonomic features and could not be triggered but occurred exclusively spontaneously. They did not fulfill any existing ICHD-3 criteria but appeared clinically to have similarities to primary stabbing headache syndromes. Indomethacin showed no efficacy. Exclusive facial variants of stabbing pain paroxysms should be classified as separate entities and tentatively be called stabbing facial pain.

中文翻译：

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面部刺痛让人联想到原发性刺痛。

原发性刺痛性头痛 (PSH) 是一种暂时性的局部头痛疾病。这种罕见的疼痛综合征的面部变异以前没有被描述过。四名患者（n = 2 名女性，2 名男性）就诊于我们的头痛和面部疼痛门诊。他们每天遭受几十到几百次短暂的刺痛发作，主要发生在第二和第三三叉神经支（V2 和 V3），没有侧向优势。这些非神经性疼痛发作并不严格遵循皮节，不伴有三叉神经自主神经特征，不能被触发，而是完全自发地发生。它们不符合任何现有的 ICHD-3 标准，但在临床上似乎与原发性刺痛性头痛综合征有相似之处。吲哚美辛没有显示出疗效。