Introduction:

pyoderma gangrenosum is a rare chronic inflammatory dermatosis, which etiology and pathogenesis is still uncertain, although immunological factors and neutrophilic dysfunction seem to play an important role. In most cases, it occurs associated with non-infectious systemic disease, such as rheumatoid arthritis, hematological malignancy and inflammatory bowel disease.

Case report:

a 26 year-old white female patient with a history of ulcerative colitis and eight weeks pregnant, who presented herself to the gastroenterology office at Abel Santamaria Cuadrado General Teaching Hospital, she was referred from her health area, presenting diarrhea with phlegm and blood, in addition to nodular lesions, papules and multiple vesicles with irregular edges in lower limbs, upper limbs and posterior region of the trunk, very painful.

Conclusions:

the evolution of ulcerative colitis and pregnancy are correlated with the activity of the disease at the time of conception, so that the existence of an outbreak at this time has been associated with a higher risk of abortion and a worse response to medical treatment.

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