Abuzetun Jamil Y, Hazin Ribhi, Suker Manar, Porter Joann
Department of Internal Medicine, Creighton University Medical Center, Omaha, NE 68198, USA.
J Natl Med Assoc. 2008 Jan;100(1):112-4. doi: 10.1016/s0027-9684(15)31185-8.
Wilson's disease and hereditary hemochromatosis are two inherited diseases with life-threatening complications. Early recognition and prompt treatment may be instrumental in reducing such complications associated with these disorders. Although both Wilson's disease and hereditary hemochromatosis are genetic in nature, the two conditions have distinct, unrelated genetic etiologies. Two distinct, separate mutations are required for simultaneous existence of the two diseases. As such, the likelihood of the two conditions coexisting is exceedingly rare. Here we report a case of a 23-year-old male with hereditary hemochromatosis with coexistent Wilson's disease. Only two reported cases exist in which this dual diagnosis was present simultaneously. In our patient, laboratory evaluation demonstrated elevated ferritin, transferrin saturation >90%, and subsequent liver biopsy demonstrated diffuse fibrotic changes. Confirmatory genetic analysis revealed the patient to be a compound heterozygous for C282Y and H63D gene mutations. Given the patient's young age and the improbability of hemochromatosis-induced hepatic damage at that age, an alternative diagnosis was sought. Further analysis revealed reduced serum ceruloplasmin along with elevated urinary copper excretion. Subsequent ophthalmologic exam revealed bilateral Kaiser Fleischer rings. In conclusion, Wilson's disease and genetic hemochromatosis both involve inherent flaws in the transportation of heavy metals and their accumulation in hepatocytes. Although both diseases arise from distinctly different genetic mutations, the coincidence of the two disorders can, in rare cases, occur.
威尔逊病和遗传性血色素沉着症是两种伴有危及生命并发症的遗传性疾病。早期识别和及时治疗可能有助于减少与这些疾病相关的此类并发症。虽然威尔逊病和遗传性血色素沉着症本质上都是遗传性的,但这两种情况有不同的、不相关的遗传病因。两种疾病同时存在需要两个不同的、独立的突变。因此,这两种情况同时存在的可能性极其罕见。在此,我们报告一例23岁男性患有遗传性血色素沉着症并同时患有威尔逊病的病例。仅有两例报告显示同时存在这种双重诊断。在我们的患者中,实验室评估显示铁蛋白升高、转铁蛋白饱和度>90%,随后的肝脏活检显示弥漫性纤维化改变。确诊的基因分析显示患者为C282Y和H63D基因突变的复合杂合子。鉴于患者年轻,且在那个年龄不太可能因血色素沉着症导致肝损伤,于是寻求了另一种诊断。进一步分析显示血清铜蓝蛋白降低以及尿铜排泄增加。随后的眼科检查发现双侧凯-弗环。总之,威尔逊病和遗传性血色素沉着症都涉及重金属运输的内在缺陷及其在肝细胞中的积累。虽然这两种疾病源于截然不同的基因突变,但在罕见情况下,这两种疾病可能会同时发生。