<?xml version='1.0' encoding='UTF-8'?><xml><records><record><source-app name="HighWire" version="7.x">Drupal-HighWire</source-app><ref-type name="Journal Article">17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Volkov, Ilia</style></author><author><style face="normal" font="default" size="100%">Rudoy, Inna</style></author><author><style face="normal" font="default" size="100%">Press, Yan</style></author></authors><secondary-authors></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">Successful Treatment of Chronic Erythema Nodosum with Vitamin B12</style></title><secondary-title><style face="normal" font="default" size="100%">The Journal of the American Board of Family Practice</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2005</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2005-11-01 00:00:00</style></date></pub-dates></dates><pages><style  face="normal" font="default" size="100%">567-569</style></pages><doi><style  face="normal" font="default" size="100%">10.3122/jabfm.18.6.567</style></doi><volume><style face="normal" font="default" size="100%">18</style></volume><issue><style face="normal" font="default" size="100%">6</style></issue><abstract><style  face="normal" font="default" size="100%">A 38-year-old woman presented with painful lesions on both shins that first appeared a few days earlier. Physical examination revealed multiple red tender nodules on both legs. The patient had been treated with nonsteroidal anti-inflammatory drugs for having a few months without any improvement. The patient was referred to a dermatologist and a rheumatologist, who confirmed our diagnosis of chronic erythema nodosum (EN). She returned to the clinic 3 months later complaining of having numbness in the soles of her feet for a few weeks. Her serum vitamin B12 level was 118 pg/mL (normal range 135 to 911). After 4 weeks of twice weekly injections of vitamin B12 at a dose of 1000 mcg, there was a clear alleviation of the numbness, and the EN completely resolved without evidence of recurrence on follow-up. Because it seems that vitamin B12 caused resolution of EN in this case, we recommend that physicians consider testing for vitamin B12 deficiency in patients with EN.</style></abstract></record></records></xml>