Diagnosis of Achondroplasia at Birth: A Case Report

Suzit Bhusal1, Uttara Gautam2, Rajan Phuyal2

  • 1Kathmandu Medical College and Teaching Hospital, Sinamangal, Kathmandu, Nepal.

Autosomal dominant mutations in fibroblast growth factor receptor 3 cause achondroplasia, the most common form of dwarfism in humans. Achondroplasia is a genetic disorder causing rhizomelic shortening of limbs. Head is often large with prominent forehead causing vaginal delivery difficult. A twenty-one years old multipara mother gave birth to a baby with achondroplasia via spontaneous vaginal delivery with episiotomy without any complication. Achondroplasia, in this case, was diagnosed on the basis of antenatal ultrasonography finding, clinical features and radiological finding of the baby. He was admitted in the special baby care unit for observation and discharged on the next day as no complications were noted. Keywords: achondroplasia; dwarfism; ultrasonography.

Related Concept Videos

Changes in the Appendicular Skeleton with Age01:09

Changes in the Appendicular Skeleton with Age

The upper and lower limb initially develops as a small bulge called a limb bud, which appears on the lateral side of the early embryo. The upper limb bud appears near the end of the fourth week of development, with the lower limb bud appearing shortly after.
Initially, the limb buds consist of a core of mesenchyme covered by a layer of ectoderm. The ectoderm at the end of the limb bud thickens to form a narrow crest called the apical ectodermal ridge. This ridge stimulates the underlying...
3.3K
Lethal Alleles02:41

Lethal Alleles

Agouti: A Lethal Allele
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
17.5K
Bone Formation by Endochondral Ossification01:24

Bone Formation by Endochondral Ossification

Bone formation, or ossification, begins around the sixth to seventh week of embryonic development. Most bones develop from a cartilaginous template through the process of endochondral ossification. Cartilage formation begins when clusters of mesenchymal cells differentiate into chondrocytes. These chondrocytes proliferate rapidly and secrete an extracellular matrix that becomes encased in a membrane called the perichondrium. The resulting cartilage model provides a template that resembles the...
7.8K