7,877 results found
Article
Assessment of thyroid lesions (ultrasound)
Ultrasound is the first-line imaging modality for assessment of thyroid nodules found on clinical examination or incidentally on another imaging modality. This article is an overview of ultrasonographic features of thyroid nodules, which are used to determine the need for biopsy with fine needle...
Article
Duane syndrome
Duane syndrome, also known as Duane retraction syndrome, is a rare congenital disease characterized by non-progressive strabismus. It is caused by a variable degree of abnormal development of one or both of the abducens nerves (CN VI).
Epidemiology
It presents during childhood and it accounts ...
Article
Wildervanck syndrome
Wildervanck syndrome, also known as cervico-ocular-acoustic dysplasia, consists of the triad of:
Klippel-Feil syndrome
congenital ossicular anomalies: usually diffuse ossicular ankylosis and sensorineural deafness
Duane syndrome: ocular motility disturbance and horizontal strabismus, secondar...
Article
American Journal of Neuroradiology (AJNR)
American Journal of Neuroradiology (AJNR) is the premier publication of the American Society of Neuroradiology and was first published in 1980 1. Its founding editor was Juan M Taveras (1919-2002), a pioneering American neuroradiologist and co-founder of the American Society of Neuroradiology. I...
Case
Osteolytic skull metastasis of lung cancer
Published
05 May 2013
89% complete
CT
Article
Anderson and Montesano classification of occipital condyle fractures
The Anderson and Montesano classification is a widely used system for describing occipital condyle fractures. It divides injuries into three types based on morphology and mechanism of injury 1-5.
Classification
type I: impacted type occipital condyle fracture
morphology: comminution of the co...
Case
Juvenile nasopharyngeal angiofibroma
Published
10 Nov 2014
89% complete
MRI
Article
Lamina cribrosa sclerae
The lamina cribrosa sclerae, also known as lamina cribrosa of the sclera, is a net-like structure covering a small hole in the posterior sclera through which the optic nerve (cranial nerve II), central retinal artery and central retinal vein pass.
Case
Pilomatricoma
Published
20 Dec 2023
88% complete
Ultrasound
Article
Orthopantomography
The orthopantomogram (also known as an orthopantomograph, pantomogram, OPG or OPT) is a panoramic single image radiograph of the mandible, maxilla and teeth. It is often encountered in dental practice and occasionally in the emergency department; providing a convenient, inexpensive and rapid way...
Case
Chordoma - clivus
Published
18 Jan 2022
88% complete
CT
MRI
Case
Intracranial foreign body (sewing needle)
Published
08 Aug 2019
77% complete
CT
X-ray
Article
Tinnitus causes (mnemonic)
A mnemonic to remember the commonest causes of tinnitus is:
HAMMER
Mnemonic
H: hypertension
A: anemia / acoustic neuroma
M: migraine / Menière's disease
M: medication (quinine, NSAIDs, streptomycin)
E: ear pathology (wax, foreign body, otitis media)
R: rare (temporomandibular joint ...
Case
Adenoid hypertrophy
Published
01 Dec 2021
91% complete
X-ray
Case
Scalp hematoma types (diagram)
Published
30 Apr 2018
38% complete
Diagram
Case
Steeple sign - croup
Published
05 May 2013
79% complete
Annotated image
Case
Cystic hygroma
Published
22 Jan 2022
92% complete
CT
X-ray
Ultrasound
Photo
Case
Tongue stud
Published
01 Jan 2009
59% complete
CT
Article
Parathyroid hyperplasia
Parathyroid hyperplasia is the diffuse enlargement of the parathyroid glands and is a less common cause of primary hyperparathyroidism.
Epidemiology
There is a female predilection (M:F = 1:3).
Clinical presentation
Most commonly an incidental finding of hypercalcemia in asymptomatic patien...
Case
Laryngeal muscles (Gray's illustrations)
Published
20 Feb 2024
35% complete
Diagram
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