BACKGROUND: Sotos syndrome is an autosomal dominant disorder, whereas attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental condition. This report aimed to summarize the clinical and genetic features of a pediatric case of Soros syndrome and ADHD in a child exhibiting precocious puberty.
METHODS: The patient presented with accelerated growth and advanced skeletal maturation; however, she lacked any distinct facial characteristics related to specific genetic disorders. Genetic analyses revealed a paternally inherited heterozygous synonymous mutation [c.4605C>T (p.Arg1535Arg)]. Functional analyses suggested that this mutation may disrupt splicing, and bioinformatics analyses predicted that this mutation was likely pathogenic. After an initial diagnosis of Sotos syndrome, the patient was diagnosed with ADHD during the follow-up period at the age of 8 years and 7 months.
CONCLUSIONS: The potential for comorbid ADHD in Sotos syndrome patients should be considered to avoid the risk of a missed diagnosis.

Sotos syndrome is an uncommon congenital overgrowth syndrome characterized by excessive growth in childhood, learning disabilities, and distinct facial features. We present the case of a young male who appeared to have the classic presentation of Sotos syndrome despite a normal genetic workup. Additionally, we present a brief review of overgrowth syndromes in order to highlight potential challenges differentiating these syndromes in clinical practice. Many overgrowth disorders often have similar presentation to Sotos syndrome, so it is important to recognize and identify specific clinical features and perform genetic testing to rule out other disorders, confirm a diagnosis, and choose the appropriate management for patients.

Germline mutations of NSD1 are associated with Sotos syndrome, characterized by distinctive facial features, overgrowth, and developmental delay. Approximately 3% of individuals with Sotos syndrome develop tumors. In this study, we describe an infant in pineoblastoma with facial anomalies, learning disability and mild autism at 1 years diagnosed as Sotos syndrome owing to carrying a novel mutation de novo germline NSD1 likely pathogenic variant. This patient expands both the mutation and phenotype spectrum of the Sotos Syndrome and provides new clinical insights into the potential mechanism of underlying pinealoblastoma pathology.

BACKGROUND: An extremely heterogeneous neuropsychological phenotype has been reported in Sotos Syndrome (SoS), including socio-communicative and behavioral difficulties referred to Autism Spectrum Disorder (ASD). Nonetheless, to date, only few data are available on the topic.
OBJECTIVE: To investigate ASD symptoms within a sample of children with SoS in comparison to a matched control group of individuals with idiopathic ASD.
METHODS: A convenience sample of SoS (n = 33, age: 9.8 ± 4.1) and ASD (n = 33, age: 9.9 ± 4.1), was included. Autistic symptoms\' assessment was performed through the administration of the Autism Diagnostic Observation Schedule-Second Edition- ADOS-2, the Social Responsiveness Scale -SRS and the Social Communication Questionnaire-SCQ.
RESULTS: 72.7% of SoS children presented mild to moderate levels of ASD symptoms as measured by the ADOS-2. Oneway ANOVA analysis showed that SoS individuals presenting lower IQ demonstrated higher ASD symptom\'s level (p = 0.01). No statistically significant differences emerged between the SoS and ASD groups within the SRS total score domain (p = 0.95).
CONCLUSIONS: Our results support the evidence for an increased risk for ASD in SoS, suggesting that the ASD symptoms\' assessment should be regularly performed in SoS children, with subsequent important implications in terms of therapeutic strategies and later outcome.

BACKGROUND: Sotos syndrome is an congenital overgrowth syndrome characterized by the primary features including overgrowth, distinctive facial features, learning disability, and accompanied with various second features. NSD1 deletion or mutation is a major pathogenic cause. Although there are some reports on treatment of this disease worldwide, less cases under treatment have been published in China.
METHODS: A 1-year-old boy had macrocephaly, gigantism, excessive high body height, a particular face and delayed development, with a pathogenic gene of NSD1 (NM_022455.5:c.3536delA in exon 5).
METHODS: The child was definitely diagnosed as Sotos syndrome and have 3 months\' combination treatment of traditional Chinese medicine and rehabilitation.
RESULTS: The child made a great progress in global development.
CONCLUSIONS: This case firstly describes the traditional Chinese medicine and rehabilitation to treat Sotos syndrome in China. There is no radical cure, but our therapy could improve the prognosis and the life quality of the patient. Therefore, this case provides a reference to the clinical treatment of Sotos syndrome.

We report three Japanese patients with Sotos syndrome accompanied by marked overgrowth, i.e., a 2 8/12-year-old boy with a height of 105.2 cm (+4.4 SD) (patient 1), the mother of patient 1 with a height of 180.8 cm (+4.1 SD) (patient 2), and a 12 10/12-year-old girl with a height of 189.4 cm (+6.3 SD) (patient 3). In addition to the marked overgrowth (tall stature), patients 1-3 exhibited Sotos syndrome-compatible macrocephaly and characteristic features, whereas intellectual and developmental disabilities remained at a borderline level in patient 1 and were apparently absent from patients 2 and 3. Thus, whole exome sequencing was performed to confirm the diagnosis, revealing a likely pathogenic c.6356A>G:p.(Asp2119Gly) variant in NSD1 of patients 1 and 2, and a likely pathogenic c.6599dupT:p.(Ser2201Valfs*4) variant in NSD1 of patient 3 (NM_022455.5). The results, in conjunction with the previously reported data in nine patients with marked overgrowth (≥4.0 SD), imply that several patients with Sotos syndrome have extreme tall stature even in adulthood. Thus, it is recommended to examine NSD1 in patients with marked overgrowth as the salient feature.

Sotos syndrome (SS) is an overgrowth disease characterized by distinctive facial features, advanced bone age, macrocephaly, and developmental delay is associated with alterations in the NSD1 gene. Here, we report a case of a 4-year-old female child with SS caused by NSD1 gene nonsense mutation.
Whole-exome sequencing (WES) was applied for probands and her parents. Sanger sequencing was used to confirm the mutation. We performed the literature review using PubMed and found 12 articles and 14 patients who presented with SS.
The patient showed typical facial features of SS, hand deformities, and seizure. WES revealed de novo heterozygous variant: NSD1 (NM_022455.5), c.6095G > A, p.TRP2032*. We also reviewed the phenotype spectrum of 14 patients with SS, who exhibited a variety of clinical phenotypes, including developmental delay, seizures, scoliosis, hearing loss, cardiac and urinary system abnormalities, and so on.
The lack of correlation between mutation sites or types and phenotypes was summarized by literature reviewing. The NSD1 protein contains 14 functional domains and this nonsense mutation was located in SET domain. Early appearance of the termination codon leads to protein truncation. Haploinsufficiency of the NSD1 gene causes the overgrowth disorders.

Sotos syndrome is an autosomal dominant genetic disorder caused by mutations in the NSD1 gene. In this study, we report a case of Sotos syndrome in a preterm infant. The main clinical manifestations were severe bronchopulmonary dysplasia, congenital heart disease, difficulty feeding, and characteristic facial appearance. The gene mutation was located at 177251854 on chromosome 5, and identified as a shear mutation, c.4765+1 G > A, which is a new mutation. The patient recovered well after symptomatic treatment. To the best of our knowledge, this is the first case of a preterm infant in whom a novel c.4765+1 G > A mutation in the NSD1 gene was identified. When premature infants present with abnormally severe bronchopulmonary dysplasia, feeding difficulties, and other congenital anomalies, Sotos syndrome should be considered.

BACKGROUND: Necrotizing pneumonia caused by methicillin-resistant Staphylococcus aureus can lead to the formation of pneumatoceles in the lungs. Standard treatment guidelines are not available due to the rarity of pneumatoceles in neonates.
RESULTS: Baby H. required prolonged respiratory support and supplemental oxygen to maintain appropriate oxygen saturation parameters for infants more than 34 weeks\' gestation corrected. He was found to have multiple pneumatoceles in both lungs on different radiological modalities.
UNASSIGNED: Baby H. was a former 32.2-week gestation male infant diagnosed with pneumonia caused by necrotizing methicillin-resistant Staphylococcus aureus leading to pneumatocele formation in both lungs.
METHODS: Baby H. was managed with aggressive antibiotic therapy and then was conservatively managed until he received a tracheostomy tube on day of life (DOL) 75 to prepare for discharge home.
RESULTS: Baby H. was discharged from the neonatal intensive care unit (NICU) on DOL 113 with a tracheostomy tube for prolonged mechanical ventilatory support and a gastrostomy tube for nutrition. Numerous follow-up appointments with specialists have occurred since discharge.
CONCLUSIONS: While methicillin-resistant Staphylococcus aureus pneumatoceles are uncommon in the NICU setting, it is important for neonatal care providers to be aware of the causes and treatment choices currently available. Although conservative therapy is commonly utilized, it is important that nurses learn other available management strategies such as the ones highlighted in this article to best advocate for their patients.

The Sotos syndrome is an autosomal dominant disorder characterized by haploinsufficiency of NSD1 gene, with some individuals affected by epilepsy and, rarely, drug-resistant seizures. A 47-years-old female patient with Sotos syndrome was diagnosed with focal-onset seizures in left temporal lobe, left-side hippocampal atrophy, and neuropsychological testing with decreased performance in several cognitive domains. Patient was treated with left-side temporal lobe resection and developed complete awake seizure control in 3-years of follow-up, with marked improvement in quality-of-life. In selected, clinically concordant patients, resective surgeries may play a significant role in improving patient\'s quality of life and seizure control.