Acute Calcific Tendinitis of the Flexor Hallucis Brevis Associated With Muay Thai

Calcific tendinitis manifesting in the foot and toes is a rare condition that often goes unnoticed, even by podiatric specialists and healthcare practitioners. Characterized by an acute onset, this condition presents with pronounced local inflammatory indicators accompanied by pain, often complicating its differentiation from other conditions. We document our experience with a 27-year-old female patient presenting with calcific tendinitis in the flexor hallucis brevis (FHB), along with a review of the relevant literature.