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2 Gerscovich EO, Sekhon S, Loehfelm TW, Greenspan A. Fetal ultrasound: Early diagnosis and natural evolution of proximal femoral focal deficiency. Treatment typically involves a combination of surgery and prosthetics, involving a multidisciplinary team of paediatricians, orthopaedic surgeons, and physical therapists.3 References 1 Aitken GT. Proximal femoral focal deficiency (PFFD) is a rare, congenital malformation whereby the proximal femur and acetabulum may be dysplastic or completely absent.1-3 Its incidence is approximately 0.11-0.2 per 10 000 births, and its presentation is typically unilateral.2,3 The aetiology of PFFD is unclear; it is typically sporadic, with no genetic predisposition.2,3 Prenatal ultrasound can capture PFFD; unfortunately, this was not the case for our patient.2 Diagnosis postpartum is suspected clinically and confirmed and typed using radiographs. [Extracted from the article]