An Unusual Diagnostic Journey Through MLPA: From Spinal Muscular Atrophy to a Severe Case of Prader-Willi Syndrome

Göktaş, Emine; Okur Altundaş, Betül; Tarım, Hülya; Kayhan, GÜLSÜM; Zamani, Ayşegül; Yıldırım, Mahmut

doi:10.14744/cpr.2023.92486

An Unusual Diagnostic Journey Through MLPA: From Spinal Muscular Atrophy to a Severe Case of Prader-Willi Syndrome

Atıf İçin Kopyala

Göktaş E., Okur Altundaş B., Tarım H., Kayhan G., Zamani A., Yıldırım M. S.

Journal of clinical practice and research, cilt.45, sa.5, ss.528-533, 2023 (Hakemli Dergi)

Yayın Türü: Makale / Vaka Takdimi
Cilt numarası: 45 Sayı: 5
Basım Tarihi: 2023
Doi Numarası: 10.14744/cpr.2023.92486
Dergi Adı: Journal of clinical practice and research
Derginin Tarandığı İndeksler: TR DİZİN (ULAKBİM)
Sayfa Sayıları: ss.528-533
Gazi Üniversitesi Adresli: Evet

Özet

Background: Prader-Willi Syndrome (PWS) is a multisystemic disorder characterized by dysmorphic facies, hypotonia, developmental delay, cognitive impairment, hypogonadism, and obesity. It is caused by the absence of expression of paternally derived genes on chromosome 15. Here, we report the diagnostic journey of a case with severe neonatal hypotonia. Case Report: A neonatal patient was referred for the prediagnosis of spinal muscular atrophy (SMA). During the SMA Multiplex Ligation-dependent Probe Amplification (MLPA) analysis, a diminished signal of a reference probe on the 15q11.2 was revealed. Later, it was confirmed that she had a deletion confined to 15q11.2-q13.1, with a methylation pattern compatible with PWS. Conclusion: Since hypotonia might be the only finding in newborns with PWS, this case was presented to emphasize the importance of a comprehensive approach to such patients. Keywords: Prader-Willi Syndrome, Spinal muscular atrophy, MLPA, PWS, SMA, hypotonia.