Cyanosis, fatigue and shortness of breath can follow a build-up of methemoglobin caused by HBB gene mutations. Genetic testing identifies the variant and guides care.
Too little mevalonate kinase drives mevalonic aciduria, bringing recurrent fever, developmental delay and inflammation; MVK testing confirms the diagnosis.
Attacks of one-sided weakness with headache, plus worsening coordination, follow CACNA1A mutations; testing separates SHM-PCA from FHM1 and childhood epilepsy.
Discover MORM Syndrome, a rare genetic disorder, and learn how advancements in genetic testing aid in diagnosis, carrier testing, and prenatal screening for better outcomes.
Hirschsprung disease can be the first sign of MEN2A, and both trace back to the RET proto-oncogene; rectal biopsy and biochemical tests are also described.
Thyroid, parathyroid and adrenal tumors, sometimes with cutaneous lichen amyloidosis, characterize MEN IIA; targeted testing and surgical options are covered.
Stiff person syndrome, progressive encephalomyelitis and acquired neuromyotonia are among the causes considered, alongside EMG, blood tests and genetic testing.
Twenty-eight genes, among them PAI-1, CX37 and IL18, have been tied to acute myocardial infarction risk, and OCT imaging can clarify causes in unclear cases.