Related Experiment Video
Updated: Aug 7, 2025

Author Spotlight: Three-Dimensional Cephalometric Landmark Annotation Demonstration on Human Cone Beam Computed Tomography Scans
Published on: September 8, 2023
The Association of Cone-shaped Epiphysis and Poland Syndrome
Abdullah M Alzahrani1, Felwa A AlMarshad1, Nora N AlSaud1
1Plastic and Reconstructive Surgery Section, Department of Surgery, King Faisal Specialist Hospital & Research Centre, Riyadh, Saudi Arabia.
Abstract:
Poland syndrome is a congenital anomaly with two clinical features: unilateral agenesis of the pectoralis major and ipsilateral hand symbrachydactyly. We report a rare case of bilateral Poland syndrome with several unique features. Poland syndrome is thought to be due to a vascular insult to the subclavian axis around the sixth week of gestation. Our patient has multiple rare and unique features of Poland syndrome. For the first time in the literature, we associate Poland syndrome with cone-shaped epiphysis of the metacarpals of all fingers. Bilaterality, cleft hand deformity, and dextrocardia were also rare features in our patient.
More Related Videos
09:20Laser Capture Microdissection of Mouse Embryonic Cartilage and Bone for Gene Expression Analysis
Published on: December 18, 2019
08:46Implementing Patch Clamp and Live Fluorescence Microscopy to Monitor Functional Properties of Freshly Isolated PKD Epithelium
Published on: September 1, 2015
Related Concept Videos
Pleiotropy
Cohesins
Cohesin complexes in Meiotic Division
Meiosis involves two distinct rounds of chromosomal segregation and cell divisions— Meiosis I followed by Meiosis II – producing four daughter cells. Meiosis I includes the separation of...
Genomic Imprinting and Inheritance
The expression of some genes depends on which parent passed the gene to the offspring, through a phenomenon known as...
Gross Anatomy of Bone
The diaphysis is the tubular shaft that runs between the proximal and distal ends of the bone. The walls of the diaphysis are composed of dense and hard compact bone made of numerous osteons — the functional unit of the compact bone. The hollow region in the diaphysis is called the medullary cavity, which harbors the bone marrow. In infants and children, this marrow cavity is filled with red marrow, whereas in...
Nondisjunction
Changes in the Appendicular Skeleton with Age
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...