Items tagged “anatomic variant”
18 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...
Case
Bifid median nerve and persistent median artery of the forearm
Published
19 Oct 2009
91% complete
Ultrasound
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...
Case
Supracondylar spur
Published
08 Dec 2014
100% complete
X-ray
Case
Inferior accessory fissure
Published
22 Apr 2015
92% complete
CT
Case
Duplex kidney
Published
06 Dec 2016
92% complete
CT
Ultrasound
X-ray
Case
Duplicate inferior vena cava
Published
24 Jan 2017
77% complete
CT
Case
Bovine arch
Published
12 Jan 2017
92% complete
CT
Case
Variant anatomy of the odontoid process of C2
Published
13 Jan 2017
22% complete
Diagram
Case
Tracheal bronchus
Published
23 Jan 2017
74% complete
CT
Case
Superior accessory fissure
Published
14 Mar 2017
80% complete
X-ray
CT
Annotated image
Case
Foramen cecum
Published
18 Jun 2018
59% complete
CT
Case
Incomplete closure of ischiopubic synchondrosis
Published
19 Aug 2018
85% complete
X-ray
Case
Os trigonum and unfused apophysis of the proximal 5th metatarsal
Published
29 Aug 2020
97% complete
X-ray
Annotated image
Case
Accessory articulation of the cervical transverse process
Published
14 Aug 2021
89% complete
CT