OBSOLETE: Syndromic neurometabolic disease with X-linked intellectual disability

This entry, listed under Orphanet code 182076, is classified as 'OBSOLETE' — meaning it is no longer considered a distinct, standalone diagnosis in current medical classification systems. Originally, it referred to a group of conditions involving both neurological and metabolic problems combined with intellectual disability linked to the X chromosome. Over time, as genetic testing improved, many of the conditions that were once grouped under this broad label have been reclassified into more specific diagnoses with known genetic causes. Because this is an obsolete grouping, patients who were previously given this label may now have a more precise diagnosis based on the specific gene involved. Conditions that may have fallen under this umbrella include various X-linked intellectual disability syndromes that also feature metabolic abnormalities, such as problems with how the body processes certain nutrients, amino acids, or other substances. Symptoms typically included intellectual disability of varying severity, developmental delays, seizures, abnormal muscle tone, and sometimes distinctive facial features or growth problems. If you or a family member was previously diagnosed under this category, it is strongly recommended to seek updated genetic testing and evaluation. Modern genetic tools like whole exome sequencing or gene panels can often identify the exact genetic cause, leading to a more specific diagnosis, better prognostic information, and potentially more targeted treatment options.

Bring these to your next appointment

• Q1.Has my child had modern genetic testing such as whole exome sequencing to identify the specific cause?,Is there a more specific diagnosis that replaces this obsolete category for my child's condition?,Are there any targeted or metabolic treatments available for the specific genetic cause?,What therapies (speech, occupational, physical) should we start and how often?,What should I do if my child has a seizure or shows signs of a metabolic crisis?,Are there clinical trials or research studies that my child might be eligible for?,Should other family members, especially males, be tested for this genetic condition?

Common questions about OBSOLETE: Syndromic neurometabolic disease with X-linked intellectual disability

Related conditions

Other rare diseases commonly researched alongside OBSOLETE: Syndromic neurometabolic disease with X-linked intellectual disability.

• Menkes disease→