Variations of the rectus capitis posterior muscles: a case report.

Duplication, accessory slips, and division of the rectus capitis posterior muscles are rare anatomical variations. Here we report a case of unilateral doubling of rectus capitis posterior major, and doubling of rectus capitis posterior minor with an accessory slip originating from the spinous process of the second cervical vertebra. The gross anatomical characteristics, clinical significance, and relationship of suboccipital musculature to the cervical myodural bridge is discussed in this report.

Agenesis of the left hepatic lobe: a cadaveric case report.

Agenesis of the left hepatic lobe is a rare anomaly described as the absence of liver tissue on the left side of the gallbladder fossa or falciform ligament. Here we report a case of agenesis of the left hepatic lobe identified during educational dissection of an 84-year-old male formalin-fixed cadaver. The gross anatomical characteristics, embryological origin, and clinical relevance of this rare variation are described in this report.