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Fetal anomalies v0.4317 DICER1 Zornitza Stark Marked gene: DICER1 as ready
Fetal anomalies v0.4317 DICER1 Zornitza Stark Gene: dicer1 has been classified as Green List (High Evidence).
Fetal anomalies v0.4316 DICER1 Zornitza Stark Classified gene: DICER1 as Green List (high evidence)
Fetal anomalies v0.4316 DICER1 Zornitza Stark Gene: dicer1 has been classified as Green List (High Evidence).
Fetal anomalies v0.4273 DICER1 Krithika Murali gene: DICER1 was added
gene: DICER1 was added to Fetal anomalies. Sources: Literature
Mode of inheritance for gene: DICER1 was set to MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Publications for gene: DICER1 were set to 27960159; 29343557; 26227654; 33208384; 35114704; 31232238; 24676357
Phenotypes for gene: DICER1 were set to GLOW syndrome, somatic mosaic - MIM#618272; Goiter, multinodular 1, with or without Sertoli-Leydig cell tumors - MIM#138800; Pleuropulmonary blastoma - MIM#601200
Review for gene: DICER1 was set to GREEN
Added comment: Heterozygous pathogenic germline DICER1 variants are associated with pleuropulmonary blastoma, multinodular goiter, embryonal rhabdomyosarcoma and other tumour types, while mosaic somatic missense DICER1 variants in the RNase IIIb domain are linked to GLOW syndrome (global developmental delay, lung cysts, overgrowth, and Wilms’ tumor) syndrome. While the DICER1 syndrome is classically caused by frameshift, nonsense or other mutations that ablate DICER1 function in a true heterozygous state, GLOW-syndrome mutations occur at specific residues within the RNase IIIb domain that only affect the function of this domain.

Both syndromes have been reported to have features that can be detected prenatally.

PMID 33208384 - report a patient with heterozygous germline DICER1 variant. The patient was born at gestational week 39 after a difficult delivery due to macrocephaly. Clinical findings at birth included two blood vessels in the umbilical cord, undescended testis, inguinal hernia, postaxial polydactyly, ear pits and rocker bottom feet.

PMID: 34331184 - report 4 unrelated families with germline DICER1 variants. In family 1 - one child was born with Pierre Robin sequence, shortening of the left arm and leg and bilateral
hip dysplasia. In Family 2 a child had macrosomia and macrocephaly at birth. Family 4 - born at 33 weeks, dysmorphic facies including hypertelorism and macroglossia.

PMID 24676357 - report 2 unrelated children with GLOW syndrome. Patient 1 was noted to have enlarged kidneys on 24 week ultrasound. At birth was found to have renal and pulmonary cysts. Patient 2 - macrocephaly was noted at birth.

DICER1 implicated in ~60% of PPB - reports of PPB detecteed antenatally, although no reports in the context of confirmed DICER1 syndrome.
Sources: Literature