Intestinal bypass was a popular surgical procedure for morbid obesity resulting, on average, in a 50 kg weight loss. We describe a 66-year-old woman who underwent the procedure 12 years earlier and subsequently presented with recurrent episodes of erythema nodosum-like lesions. Further investigations revealed hyperoxaluria, renal failure, deficiency of fat-soluble vitamins (causing night blindness, osteomalacia and easy bruising) and anaemia. Antibiotics led to only temporary remission and, as with 24-30% of similar cases, she underwent surgical reversal to prevent the complications from worsening.
Exfoliative dermatitis and erythroderma in infancy are rare. Clinicians need to be alert to the possible diagnosis of Omenn's syndrome (OS), a rare form of combined immunodeficiency in infants presenting with exfoliative dermatitis, erythroderma, recurrent infections, eosinophilia and raised IgE. OS is fatal unless treated by bone-marrow transplantation (BMT). We describe a 3-week-old girl who presented with a widespread scaly erythematous rash and stomatitis, and was initially treated for presumed atopic eczema and primary herpes stomatitis. Aged 3 months, she developed erythroderma, diarrhoea and hepatosplenomegaly associated with eosinophilia, raised serum IgE and low IgG, IgA and IgM levels, abnormal lymphocyte populations and skin histology, consistent with a diagnosis of OS. She remains well 16 months after a human leucocyte antigen-matched bone-marrow transplant from an unrelated donor.
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