Does the clinical phenotype of mucolipidosis-IIIγ differ from its αβ counterpart?: supporting facts in a cohort of 18 patients.

Mucolipidosis-IIIγ (ML-IIIγ) is a recessively inherited slowly progressive skeletal dysplasia caused by mutations in GNPTG. We report the genetic and clinical findings in the largest cohort with ML-IIIγ so far: 18 affected individuals from 12 families including 12 patients from India, five from Turkey, and one from the USA. With consanguinity confirmed in eight of 12 families, molecular characterization showed that all affected patients had homozygous pathogenic GNPTG genotypes, underscoring the rarity of the disorder.

Goltz-Gorlin Syndrome: Revisiting the Clinical Spectrum.

Objective: To describe the varying phenotypic spectrum of Focal Dermal Hypoplasia (FDH) and to emphasize the need for identifying the condition in mildly affected females which is crucial for offering a prenatal diagnosis in subsequent pregnancy owing to the risk of having a severely affected baby.

Methods: The phenotype-genotype correlation of 4 patients with FDH, over a period of 11 y from the genetic clinic in a tertiary care centre from Kerala, India was done.

Results: All four mutation proven patients were females (2 adults and 2 children).

Fanconi-Bickel syndrome.

We present the first mutation proven case of Fanconi-Bickel syndrome, a rare type of glycogen storage disease, from India. A four-year-old girl presented with severe growth retardation, genu varum and hepatomegaly. Investigations confirmed severe hypophosphatemic rickets and Fanconi syndrome.