Items tagged “anatomic variant”

5 results found
Article

Ossicles

Ossicles are "small bones" - the definition is really that broad! In human anatomy, the small bones in the middle ear are referred to as "the ossicles", but there are many other small bones in the hand and feet that appear are normal variant anatomy and are termed "accessory ossicles": ossicles...
Article

Supra-acetabular fossa

A supra-acetabular fossa, also known as pseudodefect of acetabular cartilage, is an anatomic variant whereby a focal defect is evident within the subchondral bone of the acetabular roof. It is seen in as many as 10% of hips and is typically located at the 12 o'clock position both in the coronal ...
Article

Ectopic kidney

An ectopic kidney, also known as renal ectopia, is a congenital renal anomaly characterized by the abnormal location of one or both of the kidneys. They can occur in several forms: cross fused renal ectopia ectopic thoracic kidney pelvic kidney Epidemiology The estimated incidence...
Article

Pelvic kidney

Pelvic kidneys, sometimes known as a sacral kidney, are kidneys that are fixed in the bony pelvis or across the spine and are an anatomic variant 1. Epidemiology Pelvic ectopia is seen in 1 in 2,100-3,000 autopsies. It is considered the most common form of renal ectopia 4. Associations Ectop...
Article

Prostate

The prostate gland is the largest accessory gland of the male reproductive system. In adults, the prostate typically weighs ~40 grams with an average size of 3 x 4 x 2 cm 15. The prostate comprises 70% glandular tissue and 30% fibromuscular or stromal tissue 1-3 and provides ~30% of the volume o...

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