21 August 2025
: Case report 
Ultrasound-Driven Diagnosis of Hamate Hook Stress Fracture in Athlete: A Case Report
Unusual clinical course, Challenging differential diagnosis, Diagnostic / therapeutic accidents, Unusual setting of medical care, Educational Purpose (only if useful for a systematic review or synthesis)
Sayaka Hashimoto ABCDEF 1, Kiyohito Naito ABCDEF 1,2*, So Kawakita ABC 1, Takamaru Suzuki BCD 1,2, Norizumi Imazu BCDF 1,2, Kenjiro Kawamura CDF 1,2, Muneaki Ishijima
AF 1,2
DOI: 10.12659/AJCR.948317
Am J Case Rep 2025; 26:e948317
Figure 1 Examination using ultrasonography. (A) The illustration shows how to use ultrasonography. The probe is placed on the ulnar side of the hypothenar eminence to visualize the cortical bone of the hook of the hamate through the hypothenar muscle. (B) Ultrasonography showing disruption of the bony cortical continuity of the ulnar aspect of the hook of the hamate (arrow 1) and a hematoma around this lesion (arrow 2).