Rare Diseases Symptoms Automatic Extraction

Early Onset of Fetal Hydrops Associated with the α-Thalassemia - -(THAI) Deletion.


Abstract α-Thalassemia (α-thal) is common in southern China. Homozygosity for the --(SEA) (Southeast Asian) α-globin gene deletion is the most common cause of the Hb Bart's (γ4) disease. Occasionally, other α(0)-thal deletions can also be found. In this study, we report a case with an atypical form of Hb Bart's disease. The fetus was a compound heterozygote for the --(SEA) and --(THAI) deletions and presented different clinical features from that of traditional Hb Bart's disease with the --(SEA) deletion in the homozygous state. The early onset of fetal hydrops is attributed to the decreased formation of embryonic Hb Portland (ζ2γ2), which is proposed as a candidate for reactivation in cases of severe α-thal. Our finding may have potentially important implications for clinical decisions in a program using ultrasonography to identify signs of homozygous α(0)-thal.

Diseases presenting "early onset" symptom

  • 22q11.2 deletion syndrome
  • alexander disease
  • alpha-thalassemia
  • benign recurrent intrahepatic cholestasis
  • cadasil
  • canavan disease
  • coats disease
  • cohen syndrome
  • congenital diaphragmatic hernia
  • dystrophic epidermolysis bullosa
  • epidermolysis bullosa simplex
  • erythropoietic protoporphyria
  • fabry disease
  • familial mediterranean fever
  • homocystinuria without methylmalonic aciduria
  • inclusion body myositis
  • kindler syndrome
  • krabbe disease
  • papillon-lefèvre syndrome
  • primary hyperoxaluria type 1
  • pyruvate dehydrogenase deficiency
  • scrub typhus
  • sneddon syndrome
  • triple a syndrome
  • von hippel-lindau disease
  • werner syndrome
  • wolf-hirschhorn syndrome

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