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Al-Mamari W, Idris AB, Al-Thihli K, Abdulrahim R, Jalees S, Al-Jabri M, Gabr A, Al Murshedi F, Al Kindy A, Al-Hadabi I, Bruwer Z, Islam MM, Alsayegh A. Applying whole exome sequencing in a consanguineous population with autism spectrum disorder. INTERNATIONAL JOURNAL OF DEVELOPMENTAL DISABILITIES 2023; 69:190-200. [PMID: 37025335 PMCID: PMC10071987 DOI: 10.1080/20473869.2021.1937000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
This study aimed to systematically assess the impact of clinical and demographic variables on the diagnostic yield of Whole Exome Sequencing (WES) when applied to children with Autism Spectrum Disorder (ASD) from a consanguineous population. Ninety-seven children were included in the analysis, 63% were male and 37% were females. 77.3% had a suspected syndromic aetiology of which 68% had co-existent central nervous system (CNS) clinical features, while 69% had other systems involved. The diagnostic yield of WES in our cohort with ASD was 34%. Children with seizures were more likely to have positive WES results (46% vs. 31%, p = 0.042). Probands with suspected syndromic ASD aetiology showed no significant differential impact on the diagnostic yield of WES.
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Affiliation(s)
- Watfa Al-Mamari
- Developmental Pediatric Unit, Child Health Department, Sultan Qaboos University Hospital, Muscat, Oman
- Correspondence to: Watfa Al-Mamari, Developmental Pediatric Unit, Child Health Department, Sultan Qaboos University Hospital, Muscat, Oman.
| | - Ahmed B. Idris
- Developmental Pediatric Unit, Child Health Department, Sultan Qaboos University Hospital, Muscat, Oman
| | - Khalid Al-Thihli
- Genetic Department, Sultan Qaboos University Hospital, Muscat, Oman
| | - Reem Abdulrahim
- Genetic Department, Sultan Qaboos University Hospital, Muscat, Oman
| | - Saquib Jalees
- Developmental Pediatric Unit, Child Health Department, Sultan Qaboos University Hospital, Muscat, Oman
| | - Muna Al-Jabri
- Department of Nursing, Sultan Qaboos University Hospital, Muscat, Oman
| | - Ahlam Gabr
- Developmental Pediatric Unit, Child Health Department, Sultan Qaboos University Hospital, Muscat, Oman
| | | | - Adila Al Kindy
- Genetic Department, Sultan Qaboos University Hospital, Muscat, Oman
| | - Intisar Al-Hadabi
- Department of Nursing, Sultan Qaboos University Hospital, Muscat, Oman
| | - Zandrè Bruwer
- Genetic Department, Sultan Qaboos University Hospital, Muscat, Oman
| | - M. Mazharul Islam
- Department of Statistics, College of Science, Sultan Qaboos University, Muscat, Oman
| | - Abeer Alsayegh
- Genetic Department, Sultan Qaboos University Hospital, Muscat, Oman
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Alshoabi SA, Hamid AM, Alhazmi FH, Qurashi AA, Abdulaal OM, Aloufi KM, Daqqaq TS. Diagnostic features of tuberous sclerosis complex: case report and literature review. Quant Imaging Med Surg 2022; 12:846-861. [PMID: 34993123 DOI: 10.21037/qims-21-412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 07/06/2021] [Indexed: 01/09/2023]
Abstract
Tuberous sclerosis complex (TSC) is a rare autosomal dominant genetic syndrome that is caused by mutations in the tumour suppressor genes TSC1 or TSC2 which causes multiorgan growths. TSC presents at any age as a wide range of clinical and phenotypic manifestations with varying severity. The main goal of this article was to state two cases of TSC and review the most commonly reported major and minor diagnostic clinical features and the most common features that led to an investigation of possible TSC diagnosis. Herein, we report two cases of TSC, which both presented with seizures during the first 6 months of life. Case 1 presented with multiple types of seizures from 6 months of age and was diagnosed by multiple calcified subependymal nodules (SENs) detected by computed tomography and magnetic resonance imaging (MRI). Case 2 presented with seizures from 3 months of age and was diagnosed prenatally when a tumour was seen in her heart during antenatal ultrasonography. In conclusion, the literature review revealed that neurological manifestations (mainly seizures) were the main feature that led to investigation and diagnosis of TSC followed by abdominal manifestations (mainly renal features) and antenatal follow-up imaging. Other manifestations in skin, chest, eyes, teeth and heart rarely led to TSC diagnosis. In some cases, TSC was incidentally discovered by medical imaging. The cortical tubers, SENs, and subependymal giant cell astrocytomas brain lesions were the most commonly reported major features. Skin features including angiofibromas, ungual fibromas and shagreen patch were the second most common major features reported in the literature. However, skin manifestations were not a common led to investigation and diagnosis of TSC. Renal features, mainly angiomyolipomas (AMLs), were the third most common major feature reported. Medical imaging plays an essential role in diagnosis of TSC, and clinical features are important clues that lead to investigation for the disease.
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Affiliation(s)
- Sultan Abdulwadoud Alshoabi
- Department of Diagnostic Radiology Technology, College of Applied Medical Sciences, Taibah University, Almadinah Almunawwarah, Kingdom of Saudi Arabia
| | | | - Fahad H Alhazmi
- Department of Diagnostic Radiology Technology, College of Applied Medical Sciences, Taibah University, Almadinah Almunawwarah, Kingdom of Saudi Arabia
| | - Abdulaziz A Qurashi
- Department of Diagnostic Radiology Technology, College of Applied Medical Sciences, Taibah University, Almadinah Almunawwarah, Kingdom of Saudi Arabia
| | - Osamah M Abdulaal
- Department of Diagnostic Radiology Technology, College of Applied Medical Sciences, Taibah University, Almadinah Almunawwarah, Kingdom of Saudi Arabia
| | - Khaled M Aloufi
- Department of Diagnostic Radiology Technology, College of Applied Medical Sciences, Taibah University, Almadinah Almunawwarah, Kingdom of Saudi Arabia
| | - Tareef S Daqqaq
- Radiology Department, Faculty of Medicine, Taibah University, Almadinah Almunawwarah, Kingdom of Saudi Arabia
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