Items tagged “cases”

5,501 results found
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Hybrid nerve sheath tumor

Hybrid nerve sheath tumors or hybrid peripheral nerve sheath tumors (HPNST) are benign peripheral nerve sheath tumors displaying combined morphological characteristics of more than one of the conventional tumor types such as schwannoma neurofibroma or perineurioma. Recognized combinations are: ...
Article

Plantar fascia

The plantar fascia or plantar aponeurosis is a dense collection of collagen fibers on the sole (plantar surface) of the foot. These fibers are mostly longitudinal but also transverse. Gross anatomy Posteriorly it attaches to the medial process of the tuberosity of the calcaneus, proximal to fl...
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Soft palate

The soft palate is the posterior part of the palate that is a mobile fold of soft tissue attached to the posterior border of the hard palate which laterally fuses with the lateral wall of the oropharynx. On its inferior oral surface it is lined by oral mucosa (which contains numerous palatine gl...
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Chorionic plate

The chorionic plate is a synonym for the fetal side of the placenta. The maternal side of the placenta is termed the basal plate. Some pathologies and processes are localized to the chorionic plate, and evaluation of the chorionic plate is a part of placental grading.
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Basal plate

The basal plate is a synonym for the maternal side of the placenta. The fetal side of the placenta is termed the chorionic plate. Some pathologies and processes are localized to the basal plate, and evaluation of the basal plate is a part of placental grading.
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Circummarginate placenta

Circummarginate placenta is an uncommon variation in placental morphology. The chorionic membranes insert inward from the margin of placental edge, similar to circumvallate placenta, but unlike circumvallate placenta, the placental edge is not thickened and rolled up, and there is no central dep...
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Fatal familial insomnia

Fatal familial insomnia is an extremely rare autosomal dominant inherited prion disease 1. Unlike other prion diseases, it does not exhibit spongiform changes. The main pathological findings are gliosis in the inferior olivary nuclei and thalami.
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Traumatic abruptio placenta scale

The traumatic abruptio placenta scale (TAPS) was devised to stratify placental injury findings on CT. Since placental abruption is a concern in a pregnant patient who has undergone traumatic injury, CT is occasionally the first imaging modality used to evaluate the placenta. 0: normal homogeneo...
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Sternum (oblique view)

The oblique sternum view a radiographic investigation of the entire sternum often complimenting the lateral sternum projection.  Indications The oblique view will show the sternal body in the AP plane, it is used to query fractures or infection 1. Patient position the patient is RAO facin...
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Angular interface sign

The angular interface sign is used to characterize an exophytic renal mass, in which the exophytic renal mass has an angular interface with the renal parenchyma. In other words, the exophytic lesion has a tapered pyramidal contour or definite apex within the renal parenchyma. Due to its high se...
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Meningothelial hyperplasia

Meningothelial hyperplasia is a poorly defined and likely reactive process characterized by a non-invasive, multicentric proliferation of meningothelial arachnoid cap cells. It is one of the causes of pachymeningeal dural thickening. It is not thought of as a neoplastic process or even a precurs...
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SpaceOAR

SpaceOAR is a technique in which a physical space is created between the prostate gland and rectum for electron beam radiotherapy targeted to the prostate gland in cases of prostate cancer.  OAR stands for "organ at risk", and in cases of prostate cancer radiotherapy treatment the rectum is the...
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Odontohypophosphatasia

Odontohypophosphatasia is the mildest form of hypophosphatasia that manifests as tooth dysplasia and/or early loss of deciduous or permanent teeth. Pathology As with all forms of hypophosphatasia, the underlying abnormality is a mutation in the ALPL gene that encodes for tissue non-specific al...
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Secretan disease

Secretan disease refers to rare situation of post-traumatic firm edema of the dorsum of the hand. The diagnosis can be considered in the setting of remote trauma and a fibrotic plaque-like lesion involving both the subcutaneous and tendinous spaces. Radiographic features MRI Signal characteri...
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Coccidioidomycosis

Coccidioidomycosis refers to an infection caused by the dimorphic fungus Coccidioides spp., usually localized to the lungs. This disease is not to be confused with the similarly named paracoccidioidomycosis. Epidemiology The most common species of Coccidioides are Coccidioides immitis and Cocc...
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Coccidioidal meningitis

Coccidioidal meningitis refers to central nervous system involvement of the dimorphic fungus Coccidioides spp., mainly Coccidioides immitis and Coccidioides posadasi. For a general discussion, and for links to other system specific manifestations, please refer to the article on coccidioidomycos...
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Diamond-Blackfan anemia

Diamond-Blackfan anemia (DBA) (previously known as congenital hypoplastic anemia) is the primary congenital form of pure red cell aplasia. It is a rare sporadic genetic form of anemia that typically presents in the first few years of life, and usually only affects cells of the erythroid lineage ...
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Alveoli

The alveoli (singular: alveolus) are tiny hollow air sacs that comprise the basic unit of respiration. Gross Anatomy Alveoli are found within the lung parenchyma and are found at the terminal ends of the respiratory tree, clustered around alveolar sacs and alveolar ducts.  Each alveolus is app...
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Prostatectomy

Prostatectomy is a common procedure to remove the prostate gland, most often for prostate adenocarcinoma, although occasionally performed for benign prostatic hyperplasia. When performed for tumor, it is only indicated for tumors that are confined to the prostate. There are two main types of pr...
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HIV esophagitis

HIV esophagitis is a possible cause of odynophagia in immunosuppressed patients with HIV. Epidemiology The actual incidence and prevalence of idiopathic esophagitis of HIV are unknown. Most of the patients have AIDS and a CD4 count <100 cells/mm3  3. Clinical presentation Principal clinical ...

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