OBSOLETE: Hyperphalangy, unilateral

Hyperphalangy, unilateral is an extremely rare skeletal condition in which one or more fingers or toes on one side of the body have extra small bones (called phalanges) within the digits. Normally, fingers have a set number of small bones, but in this condition, there are additional ones, which can change the shape or length of the affected digits. The term 'unilateral' means it affects only one side of the body — either the right or the left hand or foot, but not both. This condition is listed as 'OBSOLETE' in the Orphanet classification, meaning it may have been reclassified, merged with another diagnosis, or is no longer considered a distinct clinical entity in current medical terminology. Because of this obsolete status, very little specific clinical information, research, or treatment guidelines exist under this exact name. If you or your child has been given this diagnosis, it is important to work with a clinical geneticist or orthopedic specialist who can help determine whether a more current diagnosis applies. Treatment, if needed, is typically focused on improving hand or foot function and may include physical therapy or, in some cases, surgery. The condition is generally not life-threatening and primarily affects the structure and function of the involved digits.

Bring these to your next appointment

• Q1.Is this diagnosis still considered current, or has it been reclassified under a different name?,Could this be part of a broader genetic syndrome?,Should my child have genetic testing?,Will the extra bones cause any functional problems as my child grows?,Is surgery recommended, or can we manage this with therapy alone?,How often should we follow up with imaging or specialist visits?,Are there any related conditions we should screen for?

Common questions about OBSOLETE: Hyperphalangy, unilateral