Idiopathic recurrent pyoderma gangrenosum with cobalamin deficiency in a 62-year-old male: a case report.

PG is a rare form of neutrophilic dermatosis that can be difficult to diagnose and treat. PG has a mixed nutritional deficiency and a history of ulcers. It is crucial to have a high degree of suspicion when making a diagnosis, as well as to look for associated diseases and start treatment as soon as possible.