Pathological lesser trochanter avulsion fracture
Painful hip. No history of trauma.
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Avulsion of the lesser trochanter of the left femur. Lucent region in the intertrochanteric region. No other fracture. Alignment within normal limits.
3 case questions available
Non-traumatic avulsion of the lesser trochanter should be considered as metastatic disease until proven otherwise as demonstrated on biopsy in this patient.
PATHOLOGIST COMMENT: Features demonstrate a B-cell lymphoma with small to medium cells.
DIAGNOSIS: Left proximal femur, biopsy: B-cell lymphoma, NOS
- Nontraumatic avulsion of the lesser trochanter: a pathognomonic sign of metastatic disease? Phillips CD1, Pope TL Jr, Jones JE, Keats TE, MacMillan RH 3rd. https://www.ncbi.nlm.nih.gov/pubmed/3363377