The index case, a 36-year-old woman, had psoriasis (PsO) on her scalp, arms, legs, and trunk since age 25 years that was inadequately controlled with topical agents. She has a past medical history of treated hypertension and depression. She is an active smoker. Three years prior to our case evaluation, she developed polyarthritis, inflammatory back pain, and plantar fasciitis. Methotrexate (MTX) was added to her treatment regimen, first administered orally then subcutaneously, but the patient stated she could only tolerate 12.5 mg/week due to gastrointestinal and systemic adverse events. The dose of 12.5 mg/week resulted in minimal benefit. In addition, the patient was recently married and reported that pregnancy was being considered, and therefore treatment with MTX was stopped. She then experienced a flare of PsO and arthritis.Physical examination was notable for the presence of moderate-to-severe PsO (12% affected body surface area [BSA]), 6-7 swollen and tender joints, and evidence of mild erosive changes on hand radiographs. Monotherapy with adalimumab 40 mg every other week was initiated. The patient improved during treatment with adalimumab over 10 weeks, with 60-70% improvement in her clinical symptoms overall, but continued to experience mild residual joint pain and signs of PsO (2-4% BSA). Approximately 3 months ago, she noted profound fatigue, 90 minutes of morning stiffness, and diffuse joint pain. She found it difficult to continue her work in retail and reported feeling frustrated, anxious, and depressed. Her skin PsO also worsened and became more bothersome to her. On physical examination, her blood pressure was 140/90 mm Hg, pulse rate was 72 beats per minute, and body mass index was 35 kg/m 2 . She had psoriasiform plaques on her trunk and extremities (8% BSA). Musculoskeletal examination revealed 6 tender and 4 swollen joints, and she had a Disease Activity Index for PsA (DAPSA) score of 29 (a DAPSA score of >28 represents high disease activity). There were multiple tender entheses, most notably in the plantar fasciae, left Achilles tendon, and the left elbow lateral condyle. Pain was elicited in the right sacroiliac (SI) joint on provocative testing, and also at several locations unassociated with entheses.