烟酸缺乏症又称糙皮病,以皮炎,腹泻及精神症状为三大主征。由于本症有明显的消化道症状及神经精神症状,故往往误诊。本病目前在我国已很少见(偶发病例多属继发性烟酸缺乏症),临床医生往往想不到本病而造成误诊。笔者近几年曾遇6例误诊,现分析如下。临床资料一、性别与年龄:男4女2,年龄15～61岁。二、职业:农民5例,学生1例。三、发病时间:本组均在5～7月发病,其中5月3例,6月2例,7月1例。四、发作情况:初次发作2例,慢性反复发作2年以上的4例。五、误诊疾病:被误诊为慢性肠炎2例,慢性菌痢2例,慢性湿疹1例,神经衰弱1例。 Niacin deficiency, also known as pellagra, with dermatitis, diarrhea and mental symptoms as the three major levy. Because of this disease has obvious gastrointestinal symptoms and neuropsychiatric symptoms, it is often misdiagnosed. The disease is rarely seen in our country (occasional cases are mostly secondary to niacin deficiency), clinicians often can not think of the disease and cause misdiagnosis. In recent years, I have encountered 6 cases of misdiagnosis, are analyzed as follows. Clinical data A, gender and age: male 4 female 2, aged 15 to 61 years old. Second, occupation: five farmers, one student. Third, the onset time: This group were 5 to 7 months onset, of which 3 cases in May, 2 cases in June, 1 case in July. Fourth, the seizures: initial attack in 2 cases, chronic recurrent episodes for more than 2 years in 4 cases. Fifth, misdiagnosis of the disease: was misdiagnosed as chronic enteritis in 2 cases, 2 cases of chronic bacillary dysentery, 1 case of chronic eczema, neurasthenia in 1 case.