Related Experiment Video
Updated: May 2, 2026

Laparoscopic Anatomical Right Hemihepatectomy via the In Situ Anterior Approach
Published on: August 8, 2025
Cavernous hemangioma arising from the diaphragm
Katsuhito Ueno1, Eriho Takeuchi, Haruaki Hino
1Center for Pulmonary Diseases, Department of Thoracic Surgery, National Hospital Organization Tokyo National Hospital, Tokyo, Japan.
Abstract:
A 51-year-old man was referred to our hospital with an abnormal nodule in the right lung field. Computed tomography revealed a homogeneous nodule adjacent to the diaphragm, which appeared to be an extrapulmonary lesion. No hilar or mediastinal lymph node swelling was detected, and positron-emission tomography showed no significant uptake. At surgery, 2 red papillary tumors were found, originating from the right diaphragm, and tumor extirpation was performed. The pathological diagnosis was cavernous hemangioma.
Related Concept Videos
Hiatal Hernia
Cirrhosis I: Introduction
Esophageal Varices-I: Introduction
Veins of Head and Neck
On the other hand, the vertebral veins, unlike their arterial counterparts, are not primarily responsible for brain drainage. Instead, they drain the cervical vertebrae, spinal cord, and some small...
Thoracic Aorta
Veins of Thorax
The azygos vein, positioned just right of the midline and anterior to the vertebral column, begins at the junction of the right ascending lumbar and subcostal veins, terminating in the superior vena cava. This vein drains blood from the right side of the thoracic wall, thoracic viscera, and posterior abdominal wall.
The...

