Gastrointestinal symptoms as an extended clinical feature of Pierson syndrome: A case report and review of the literature

Kei Nishiyama, Mari Kurokawa, Michiko Torio, Yasunari Sakai, Mitsuru Arima, Shoko Tsukamoto, Satoshi Obata, Shogo Minamikawa, Kandai Nozu, Noriyuki Kaku, Yoshihiko Maehara, Koh Hei Sonoda, Tomoaki Taguchi, Shouichi Ohga

Research output: Contribution to journalReview articlepeer-review

3 Citations (Scopus)


Background: Pierson syndrome (PS) is a rare autosomal recessive disorder, characterized by congenital nephrotic syndrome and microcoria. Advances in renal replacement therapies have extended the lifespan of patients, whereas the full clinical spectrum of PS in infancy and beyond remains elusive. Case presentation: We present the case of a 12-month-old boy with PS, manifesting as the bilateral microcoria and congenital nephrotic syndrome. He was born without asphyxia, and was neurologically intact from birth through the neonatal period. Generalized muscle weakness and hypotonia were recognized from 3 months of age. The infant showed recurrent vomiting at age 5 months of age, and was diagnosed with gastroesophageal reflux and intestinal malrotation. Despite the successful surgical treatment, vomiting persisted and led to severely impaired growth. Tulobuterol treatment was effective in reducing the frequency of vomiting. Targeted sequencing confirmed that he had a compound heterozygous mutation in LAMB2 (NM_002292.3: P.Arg550X and p.Glu1507X). A search of the relevant literature identified 19 patients with severe neuro-muscular phenotypes. Among these, only 8 survived the first 12 months of life, and one had feeding difficulty with similar gastrointestinal problems. Conclusions: This report demonstrated that severe neurological deficits and gastrointestinal dysfunction may emerge in PS patients after the first few months of life.

Original languageEnglish
Article number80
JournalBMC Medical Genetics
Issue number1
Publication statusPublished - Apr 15 2020

All Science Journal Classification (ASJC) codes

  • Genetics
  • Genetics(clinical)


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