O'Neill T, Simpson J, Smyth S J, Lovell C, Calin A
Department of Rheumatology, Royal National Hospital for Rheumatic Diseases, Upper Borough Walls, Bath.
Br J Rheumatol. 1993 May;32(5):411-2. doi: 10.1093/rheumatology/32.5.411.
A 69-year-old lady with RA developed porphyria cutanea tarda 2 weeks following initiation of methotrexate therapy. The clinical and laboratory features are described.