Articles

Articles are a collaborative effort to provide a single canonical page on all topics relevant to the practice of radiology. As such, articles are written and continuously improved upon by countless contributing members. Our dedicated editors oversee each edit for accuracy and style. Find out more about articles.

16,879 results found
Article

Pancreatic ductal adenocarcinoma

Pancreatic ductal adenocarcinoma, frequently referred to as pancreatic cancer, makes up the vast majority (~90%) of all pancreatic neoplasms and remains a disease with a very poor prognosis and high morbidity. Epidemiology Pancreatic cancer accounts for 22% of all deaths due to gastrointestina...
Article

Miliary tuberculosis

Miliary tuberculosis is an uncommon pulmonary manifestation of tuberculosis. Pathology Miliary tuberculosis represents hematogenous dissemination of uncontrolled tuberculous infection and carries a relatively poor prognosis. It is seen in primary and post-primary tuberculosis and may be associ...
Article

Tuberculosis

Tuberculosis (commonly abbreviated to TB, short for tubercle bacillus) encompasses an enormously wide disease spectrum affecting multiple organs and body systems predominantly caused by Mycobacterium tuberculosis. A small proportion can also be caused by Mycobacterium bovis through drinking unpa...
Article

Dialysis access-associated steal syndrome

Dialysis access-associated steal syndrome or haemodialysis access-related hand ischemia arises as a complication of arteriovenous (AV) access. Epidemiology Symptomatic dialysis access-associated steal syndrome has been reported in up to 6% of AV access patients ref. Prevalence is higher in bra...
Article

Vasculitis

Vasculitis describes generalized inflammation of vessels. Vasculitides carry a broad range of clinical presentations and as a whole can involve almost any organ system. Pathology Some vasculitides are due to direct vessel injury from an infectious agent. However, a large proportion show eviden...
Article

Foot injection (disambiguation)

Foot injection is a non-specific term often used by patients, about tarsal or metatarsal joint injections and to other procedures which include:​ calcaneocuboid joint injection metatarsophalangeal joint (MTPJ) injection naviculocuneiform joint injection plantar fascia injection plantar fasc...
Article

Mastectomy

Mastectomy is a surgical treatment for breast cancer in which the entire breast tissue is removed through a surgical procedure as opposed to a wide local excision. Sometimes, adjacent structures, such as lymph nodes, are removed to prevent recurrence or metastasis. In some cases, mastectomy is d...
Article

Bickerstaff encephalitis

Bickerstaff encephalitis, also known as Bickerstaff brainstem encephalitis, is a rare immune-mediated condition, which is often a phenotype of the anti-GQ1b antibody syndrome. Epidemiology Bickerstaff encephalitis is very are. it typically affects adult patients in early to middle age 4. Clin...
Article

Miller Fisher syndrome

Miller Fisher syndrome is an immune-mediated condition characterized by the triad of cerebellar ataxia, areflexia, and external ophthalmoplegia. It is believed to represent, along with a number of other entities, different clinical manifestations of a similar underlying autoimmune disorder, the ...
Article

Optic neuropathy

Optic neuropathy is a broad term and can result from a variety of causes. Pathology genetic Leber hereditary optic neuropathy compression or trauma (traumatic optic neuropathy) optic nerve sheath meningioma progressive diaphyseal dysplasia thyroid-associated orbitopathy shear injury inf...
Article

Vestibular neuritis

Vestibular neuritis, also known as acute unilateral vestibulopathy (AUVP) or vestibular neuronitis, refers to presumed inflammation of the vestibular nerve/vestibulocochlear nerve. It can be associated with labyrinthitis. The vestibular nerve is a large division of cranial nerve eight (CN VIII)...
Article

Chronic traumatic encephalopathy

Chronic traumatic encephalopathy (CTE) is a neurodegenerative tauopathy that is thought to result from mild repetitive head injury. The diagnosis can only be made by neuropathological examination. Terminology Chronic traumatic encephalopathy refers to a specific neuropathological diagnosis, of...
Article

Rectal cancer response assessment

Assessment of rectal cancer response to therapy, which may be chemotherapy, radiotherapy, or a combination, relies on the synthesis of clinical, endoscopic and radiologic evaluation.  The purpose of neoadjuvant therapy is to downstage the tumor, to facilitate surgical resection, and reduce loca...
Article

Hoffa fracture

Hoffa fracture, also known as Busch-Hoffa fracture, is a type of distal condylar femoral fracture and is characterized by an associated fracture component in the coronal plane. Epidemiology While they are rare in absolute numbers, they can account for approximately 40% of intercondylar fractur...
Article

Imperforate hymen

Imperforate hymen is a congenital condition in which the hymen lacks a normal opening. Epidemiology It happens in 0.1% of the female population, usually an isolated finding.  Clinical presentation Primary amenorrhea with cyclic lower abdominal pain during menarche age. An imperforate hymen c...
Article

Disarticulation

The term disarticulation refers to the disconnection of all or part of a limb from the body, specifically through a joint. This is in contrast to amputation, which is the disconnection or removal of the structure through a bone.
Article

Hematosalpinx

A hematosalpinx refers to intraluminal blood within the fallopian tube (often dilated).  Pathology Etiology tubal ectopic pregnancy: common cause 1 endometriosis: common cause 5 tubal carcinoma pelvic inflammatory disease fallopian tube torsion retrograde menstruation uterine cervical s...
Article

Susceptibility weighted imaging

Susceptibility weighted imaging (SWI) is an MRI sequence that is particularly sensitive to compounds which distort the local magnetic field and as such make it useful in detecting blood products, calcium, etc. Physics SWI is a 3D high-spatial-resolution fully velocity corrected gradient-echo M...
Article

Omental infarction

Omental infarction is a rare cause of acute abdomen resulting from vascular compromise of the greater omentum. This condition has a non-specific clinical presentation and is usually managed conservatively. Along with epiploic appendagitis and perigastric appendagitis, the term omental infarctio...
Article

Mitral aortic intervalvular fibrosa

The mitral-aortic intervalvular fibrosa (MAIVF) refers to a thin, fibrous, membranous avascular region located between the anterior leaflet of the mitral valve (left atrioventricular orifice) and non-coronary cusp of the aortic valve in the heart. It extends from the right fibrous trigone to th...

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.