A Rare Case of Brodie's Abscess in the Tibial Diaphysis Masquerading as a Vaso-occlusive Sickle Crisis.

We present the case of a 19-year-old male with a history of sickle cell anemia who presented to the hospital with worsening lower extremity pain. Given his acute presentation and history of recurrent pain crises, he was admitted to the hospital for management of a suspected acute pain crisis. However, due to continued pain, imaging was obtained which revealed a different diagnosis for the cause of his symptoms. MRI of the left lower leg revealed heterogenous T1 and T2 hyperintense signals within the proximal tibial diaphysis measuring 6.6 × 1.6 × 2.2 cm with a thick rim of peripheral irregular enhancement with surrounding periosteal reaction and soft tissue edema, concerning for osteomyelitis and developing Brodie's abscess. The patient underwent tibia irrigation and debridement with the placement of vancomycin and tobramycin beads. Perioperatively, no purulence was noted within the soft tissues, and no organisms were grown on tissue cultures. The patient's pain improved and he was discharged home with a plan to complete six weeks of intravenous antibiotics. This case represents the need to differentiate Brodie's abscess from a sickle cell crisis. Clinicians should also be aware that patients with sick cell disease are prone to Brodie's abscess and it should be a differential for symptoms of relenting bone pain.