This article presents a case of undiagnosed sesamoid @entity625 with coexisting @entity1795 . A 25-year-old @entity1 presented with a 2-year history of metacarpophalangeal joint @entity158 and triggering of the thumb. She was a right-handed bank employee and recalled a @entity6475 . The @entity158 improved slightly while on medication, but the triggering recurred 1 month after the @entity134 injection. Six months after the first visit, she underwent A1 pulley release surgery for the triggering without a more detailed evaluation such as radiographs or sonographs. Intraoperatively, no definite @entity1795 were observed. The triggering resolved, but the @entity158 persisted. One month postoperatively, a repeat physical examination was performed, and the @entity158 region was localized to the radial sesamoid area. Radiography was then performed, which showed joint space narrowing of the sesamoid metacarpal head and @entity3808 changes and spur formation on the metacarpal head. An additional diagnosis of sesamoid @entity625 of the thumb was made and the @entity158 finally resolved as a result of the sesamoidectomy. Orthopedic surgeons often overlook pathologies around the metacarpophalangeal joint, especially those related to triggering. A high index of suspicion and clinical findings consistent with intermittent mechanical obstruction and @entity925 in the palmar aspect of the metacarpophalangeal joint warrant inclusion of sesamoid @entity625 as a differential diagnosis for metacarpophalangeal joint pathology. Detailed physical examinations should be performed and proper radiographs taken in all @entity1 with @entity925 in the metacarpophalangeal joint even if triggering of the thumb is present.

Sesamoid @entity625 mimicking XXXX .

@entity1 :: ('9606', 'Species') :: ['woman', 'patients'] @entity625 :: ('MESH:D001168', 'Disease') :: ['arthritis'] @entity3808 :: ('MESH:C538213', 'Disease') :: ['sclerotic'] @entity6475 :: ('MESH:D013180', 'Disease') :: ['trivial thumb sprain'] @entity134 :: ('CHEBI:35341', 'Chemical') :: ['steroid'] @entity158 :: ('MESH:D010146', 'Disease') :: ['pain', 'painful'] @entity925 :: ('MESH:D063806', 'Disease') :: ['tenderness'] @entity1795 :: ('MESH:D052582', 'Disease') :: ['abnormalities in the fibrous flexor sheath or flexor tendon', 'trigger thumb']
@entity1795 :: (MESH:D052582,Disease) :: ['trigger thumb']
