Arm anomalies and bone marrow failure may go hand in hand

Area of Science:

• Pediatric Orthopedics
• Hematology
• Clinical Genetics

Background:

• Children with congenital hand and forearm anomalies may have underlying inherited bone marrow-failure syndromes.
• Syndromes such as Fanconi's anemia, Diamond-Blackfan anemia, and thrombocytopenia-absent radii can present with limb malformations.
• Hematologic abnormalities may not be clinically apparent at the time of surgical evaluation for limb anomalies.

Purpose of the Study:

• To review inherited bone marrow-failure syndromes associated with congenital limb anomalies.
• To summarize the types of malformations, hematologic complications, and typical age of onset for these syndromes.
• To highlight the role of hand surgeons in the early diagnosis of these conditions.

Main Methods:

• Review of literature on inherited bone marrow-failure syndromes and congenital limb anomalies.
• Analysis of clinical presentations, including malformations and hematologic findings.
• Discussion of diagnostic clues in hematologic data, even when seemingly normal.

Main Results:

• Congenital anomalies of the hand and forearm can be early indicators of bone marrow-failure syndromes.
• Subtle hematologic findings, such as macrocytosis or slowly declining blood counts, may precede severe cytopenias.
• These syndromes have varying inheritance patterns and present with diverse malformations and hematologic complications.

Conclusions:

• Hand surgeons are uniquely positioned to identify potential cases of inherited bone marrow-failure syndromes.
• Early, often presymptomatic, diagnosis facilitates timely surgical planning and management.
• Diagnosis enables genetic counseling and potential in utero detection for families with known inheritance patterns.