[Problems of delayed diagnosis of an uncomplicated adrenogenital syndrome (AGS) with 21-hydroxylase defect in a 7-year-old boy].
Dtsch Med Wochenschr 1998;
123:827-31. [PMID:
9685841 DOI:
10.1055/s-2007-1024074]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
HISTORY AND CLINICAL FINDINGS
A 7.3-year-old boy was presented at out-patient clinic because of tallness and premature puberty. His height was 150.2cm (+ 4.74 standard deviation score for chronological age), body mass index 18.4 kg/m2, pubic hair stage 3 (after Tanner), testicular volume of 5.0 ml each. Bone age was accelerated by 6.5 years (SD -1.55 for height according to bone age). Expected final height was 166 cm, mean genetic target height 180 cm.
INVESTIGATIONS
Basal serum concentration of 17-hydroxyprogesterone was 142.1 ng/ml (normal: < 1.9) and testosterone of 93 ng/dl (normal: < 11). 24-hour urine showed an increased excretion of pregnantriol of 8280 micrograms/d (normal < 500). Gonadotropine-releasing hormone test (GnRH), blood collected at 0 and 30 min, showed an increased rise of the serum LH concentration of 0.6 to 8.2 mU/ml (normal < 0.3 and < 3.6, respectively) and a normal FSH increase of 1.3 to 3.2 mU/ml (normal < 1.3 and < 4.0, respectively). The diagnosis of adrenogenital syndrome (AGS) with 21-hydroxylase defect was confirmed by molecular genetic testing.
TREATMENT AND COURSE
The boy was treated with hydrocortisone (average dose 18.3 mg/m2 body surface area). Because of the premature puberty and the poor growth endprognosis treatment with the GnRH agonist Decapeptyl Depot, 3.75 mg every 4 weeks i.m., was started.
CONCLUSION
The correct diagnosis should have been made in the neonatal period on the basis of the family history (15-year-old brother with AGS) and at the latest on correct interpretation of the clinical signs during early childhood.
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