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.
336 results found
Article
Reed-Sternberg cells
Reed-Sternberg cells are a classical finding diagnostic of Hodgkin lymphoma. They are giant, multinucleated cells with abundant pale cytoplasm. Reed-Sternberg cells are rare, making up <1% of lymphoid tissue, with the background consisting of lymphocytes, plasma cells, eosinophils and macrophages.
Article
Reticuloendothelial system
The reticuloendothelial system (RES) comprises a number of tissues:
spleen
bone marrow
liver Kupffer cells
Article
Inflammatory myofibroblastic tumor of the spleen
Inflammatory myofibroblastic tumors of the spleen are rare spindle cells tumors of indeterminate clinical behavior. Please refer to the article on inflammatory myofibroblastic tumors for a broad discussion on the subject.
Radiographic features
Ultrasound
They usually present as a well define...
Article
Engraftment syndrome
Engraftment syndrome (ES) refers to a potential early complication of haematopoetic stem cell transplantation. It is thought to be related to increased capillary permeability and comprises of a combination of symptoms and signs which include
fever
erythrodermatous skin rash
noncardiogenic pul...
Article
Anatomy curriculum
The anatomy curriculum is one of our curriculum articles and aims to be a collection of articles that represent the core anatomy knowledge for radiologists and imaging specialists.
General anatomy
Neuroanatomy
Head and neck anatomy
Thoracic anatomy
Abdominal and pelvic anatomy
Spinal anat...
Article
BALT lymphoma
BALT lymphoma is an abbreviated term for bronchus-associated lymphoid tissue lymphoma. These neoplasms fall under the broader umbrella of mucosa associated lymphoid tissue (MALT) lymphomas. It is sometimes considered a type of primary pulmonary lymphoma.
Clinical presentation
Up to half of pat...
Article
Pulmonary lymphoma
Pulmonary lymphoma refers to lung parenchymal involvement with lymphoma.
Pathology
It can be broadly divided as primary or secondary:
primary pulmonary lymphoma: (rare) usually non-Hodgkin lymphoma which is limited to the lung with or without mediastinal lymph node involvement and with no evi...
Article
Hand-foot syndrome (sickle cell disease)
Hand-foot syndrome, also simply referred to as dactylitis, is a self-limiting manifestation of a vaso-occlusive crisis in individuals with sickle cell anemia.
Terminology
Dactylitis is not a specific finding in sickle cell disease, therefore cautious usage is advised if one chooses to employ i...
Article
Binet staging system for chronic lymphocytic leukemia
The Binet staging system is one of the two staging systems currently adopted in assessment of chronic lymphocytic leukemia (CLL).
It classifies CLL according to the number of lymphoid tissues that are involved (i.e. the spleen and the lymph nodes of the neck, groin, and underarms), as well as t...
Article
Secondary hepatic involvement with lymphoma
Secondary hepatic involvement with lymphoma (secondary hepatic lymphoma) is common, much more so than primary hepatic lymphoma.
Clinical presentation
Hepatomegaly with deranged liver function tests is the most common presentation. Jaundice is common. Rarely, patients may present with acute li...
Article
Uterine lymphoma
Uterine lymphoma refers to involvement of the uterus with lymphoma. Some authors also place lymphoma of the uterine cervix under this group.
Epidemiology
It is rare condition with initial uterine involvement occurring in only 1% of patients with lymphoma 3. However, uterine involvement is more...
Article
Vaginal lymphoma
Vaginal lymphoma can refer to:
secondary involvement of the vagina (secondary vaginal lymphoma) from widespread generalized lymphoma
relatively commoner
usually comprises of diffuse large cell B non-Hodgkin's lymphoma (DLBCL) 2
primary vaginal lymphoma
much rarer
Article
Antithrombin III deficiency
Antithrombin (AT) III deficiency (now simply called antithrombin deficiency) refers to a congenital lack of the endogenous anticoagulant antithrombin.
Epidemiology
Antithrombin deficiency is considered the least common of the three main anticoagulant deficiencies (the other two being protein C...
Article
AIDS-related pulmonary lymphoma
AIDS-related pulmonary lymphoma (ARPL) is classified as a distinct form of pulmonary lymphoma. Pulmonary involvement is a common extranodal site in AIDS-related NHL.
Pathology
ARPL is typically a high-grade B-cell non-Hodgkin's lymphoma and the majority of patients have advanced HIV infection,...
Article
Vanishing vertebrae
Vanishing vertebrae is a rare ischemic manifestation of sickle cell disease, in which a completely infarcted vertebral body literally disappears or vanishes, as a result of infarction. In the few reported cases, the posterior elements remain intact.
See also
codfish or h-shaped vertebrae
ante...
Article
Tumors associated with increased erythropoetin
Tumors associated with increased erythropoetin are varied and numerous. Patients will be polycythemic due to erythropoetin secretion. Tumors in this group include:
renal cell carcinoma (RCC) 2
hepatocellular carcinoma (HCC)
hemangioblastoma
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