Items tagged “cases”

4,735 results found
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Gestational sac

The gestational sac (GS) is the first sign of early pregnancy on ultrasound and can be seen with endovaginal ultrasound at approximately 3-5 weeks gestation when the mean sac diameter (MSD) would approximately measure 2-3 mm in diameter. A true gestational sac can be distinguished from a pseudo...
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Glenolabral articular disruption lesions

Glenolabral articular disruption (GLAD) lesions result from a forced adduction injury. There is a superficial anterior inferior labral tear associated with an anterior inferior glenoid articular cartilage injury. These lesions do not tend to be associated with shoulder instability. It is better...
Article

Glenolabral articular disruption lesions

Glenolabral articular disruption (GLAD) lesions result from a forced adduction injury. There is a superficial anterior inferior labral tear associated with an anterior inferior glenoid articular cartilage injury. These lesions do not tend to be associated with shoulder instability. It is better...
Article

Gluteal injection site granuloma

Gluteal injection site granulomas are a very common finding on CT and plain radiographs. They occur as a result of subcutaneous (i.e. intra-lipomatous) rather than intramuscular injection of drugs, which cause localised fat necrosis, scar formation and dystrophic calcification. Once familiar wi...
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Gradenigo syndrome

Gradenigo syndrome consists of the triad of: petrous apicitis abducens nerve palsy, secondary to involvement of the nerve as it passes through Dorello canal retro-orbital pain, or pain in the cutaneous distribution of the frontal and maxillary divisions of the trigeminal nerve, due to extensi...
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Haemangioendothelioma

A haemangioendothelioma is a tumour derived from blood vessels.  Pathology Subtypes Subtypes dependent on location include haemangioendothelioma (MSK) haemangioendothelioma of liver See also epithelioid haemangioendothelioma
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Musculoskeletal haemangioendothelioma

Haemangioendotheliomas, along with haemangiopericytomas and angiosarcomas, are tumours that arise from vascular structures. In the case of haemangioendotheliomas, the cell of origin is the endothelial cell, and they range from benign to frankly malignant lesions. Epidemiology They typically oc...
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Musculoskeletal haemangiopericytoma

Musculoskeletal haemangiopericytomas are now considered to be a cellular and more aggressive version of solitary fibrous tumours, and the term has largely been abandoned.  Epidemiology These tumours are most frequently seen in middle-aged adults (~ 4th decade). Pathology Location Typically ...
Article

Pantothenate kinase-associated neurodegeneration

Pantothenate kinase-associated neurodegeneration (PKAN), previously known as Hallervorden-Spatz syndrome, is an autosomal recessive disorder causing involuntary spasticity and progressive dementia. It is a subset of neurodegeneration with brain iron accumulation (NBIA). Clinical presentation D...
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Heerfordt syndrome

Heerfordt syndrome, also known as Heerfordt-Waldenström syndrome or uveoparotid fever, is a variant of sarcoidosis, comprising of: fever parotid enlargement facial palsy ocular involvement (anterior uveitis) Epidemiology The exact prevalence is unknown, as only isolated case reports exist....
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Haemangiopericytoma

Haemangiopericytoma is a term formerly used to describe a continuum of mesenchymal tumours with elevated cellularity found throughout the body in soft tissue and bone. After many years of controversy, haemangiopericytomas have been shown to not only share histological features similar to solitar...
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Hepatic veno-occlusive disease

Hepatic veno-occlusive disease (VOD), also known as sinusoidal obstruction syndrome (SOS), is a condition arising from occlusion of hepatic venules. Clinical presentation right upper quadrant pain painful hepatomegaly ascites abnormal liver function tests Pathology Toxic injury to liver s...
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Lymphoma (staging)

There are a number of lymphoma staging systems for both Hodgkin lymphoma and non-Hodgkin lymphoma including the Ann Arbor classification, Cotswolds-modified Ann Arbor classification, and the most current, Lugano classification.  Evolution of lymphoma staging and treatment response evaluation cr...
Article

Lymphoma (staging)

There are a number of lymphoma staging systems for both Hodgkin lymphoma and non-Hodgkin lymphoma including the Ann Arbor classification, Cotswolds-modified Ann Arbor classification, and the most current, Lugano classification.  Evolution of lymphoma staging and treatment response evaluation cr...
Article

Hydrocolpos

Hydrocolpos is characterised by an expanded fluid filled vaginal cavity. When it is associated with distention of the uterine cavity, the term hydrometrocolpos should then be used. It may present in infancy with a lower abdominal mass, or be delayed till menarche. Pathology Aetiology imperfor...
Article

Hydrometrocolpos

Hydrometrocolpos is characterised by an expanded fluid filled vaginal cavity with associated distention of the uterine cavity. It may present in infancy with a lower abdominal mass, or be delayed till menarche. Pathology Aetiology imperforate hymen (most common) also involves the upper portio...
Article

Hyperostosis frontoparietalis

Hyperostosis frontoparietalis is a variant of the more common and more well known hyperostosis frontalis interna. As the name suggests, it is merely inner table thickening of not only the frontal bones, but also extending more posteriorly into the parietal bones. This is a common incidental fin...
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Incus

The incus is the middle of the ossicles articulating with the head of the malleus anteromedially and the stapes inferomedially. Parts include: a body which articulates with the head of the malleus, and to which the superior ligament of the incus is attached (to the roof of the middle ear cavit...
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Interstitial ectopic pregnancy

Interstitial ectopic pregnancy, also known as intramural ectopic pregnancy, is an important type of ectopic pregnancy with higher risks of rupture and haemorrhage compared to usual tubal ectopic pregnancies.  Terminology The term interstitial pregnancy is sometimes interchangeably used with co...
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Interstitial line sign

The interstitial line sign is an ultrasound finding in interstitial ectopic pregnancy. It is an echogenic line from the mass to the endometrial echo complex. Reportedly it has high sensitivity (80%) and specificity (98%).

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