1,807 results found
Article
Conjoined twins
Conjoined twin pregnancy is a rare occurrence resulting from the failure of a zygote to separate completely after 13 days 11. This results in the twins being physically joined.
Epidemiology
The prevalence of conjoined twins ranges from 1:50,000 to 1:200,000. They are more common in parts of So...
Case
Heterotopic pregnancy
Published
10 Jan 2013
82% complete
Ultrasound
Article
McKusick Kaufman syndrome
McKusick Kaufman syndrome (MKS) is an autosomal recessive multiple malformation syndrome primarily characterized by
hydrometrocolpos - vaginal atresia
post-axial polydactyly
congenital heart disease
Case
Failed early pregnancy
Published
04 Jul 2022
94% complete
Ultrasound
Article
Cesarean section
Cesarean section (also known as C-section, CS and C/S) is the most frequently done major abdominal surgery in females, performed to deliver a baby as an alternative to normal vaginal delivery 1.
Surgical technique
Many forms of cesarean section have been described, but the most popular variat...
Article
Marginal placenta previa
A marginal placenta previa (or grade 2 placenta previa) is a form of placenta previa where placental tissue reaches the margin of the internal cervical os but does not cover it.
Differential diagnosis
vasa previa
Article
Hydrops fetalis
Hydrops fetalis is excessive extravasation of fluid into the third space in a fetus which could be due to heart failure, volume overload, decreased oncotic pressure, or increased vascular permeability. Hydrops is defined as the accumulation of fluid +/- edema involving at least two fetal compone...
Case
Variation in placental morphology: diagrams
Published
14 Apr 2011
32% complete
Diagram
Case
Hepatic infarct complicating HELLP syndrome
Published
05 Jan 2023
80% complete
CT
Article
Endometrial thickness
Endometrial thickness is a commonly measured parameter on routine gynecological ultrasound and MRI. The appearance, as well as the thickness of the endometrium, will depend on whether the patient is of reproductive age or postmenopausal and, if of reproductive age, at what point in the menstrual...
Case
Variation in placental adherence: diagrams
Published
17 Apr 2011
32% complete
Diagram
Case
Gossypiboma and small bowel obstruction
Published
08 Nov 2020
93% complete
CT
Case
Autosomal recessive polycystic kidney disease (antenatal ultrasound).
Published
26 Mar 2019
94% complete
Ultrasound
Article
Perinatal lethal hypophosphatasia
Perinatal lethal hypophosphatasia (PLH) is the most severe form of hypophosphatasia. If untreated, it is lethal in all cases.
Epidemiology
The estimated incidence is at ~1:100,000 live births.
Pathology
Genetics
As with all hypophosphatasia cases, this is due to a mutation in chromosome 1q3...
Case
Calcified fetus
Published
11 Nov 2011
82% complete
X-ray
Article
Fetal atrioventricular block
Fetal atrioventricular block is a form a fetal bradyarrhythmia often classified into
fetal partial atrioventricular block (PAVB)
fetal complete atrioventricular block (CAVB)
Epidemiology
Fetal atrioventricular block is considered rare finding with reported occurrences of around 1:11,000-20,0...
Case
Small bowel obstruction and pregnancy
Published
01 May 2011
98% complete
MRI
Article
Pulmonary hypoplasia
Pulmonary hypoplasia refers to underdevelopment of one or both lungs. This can be rapidly fatal at birth or mild, escaping detection for decades. It is most often secondary to congenital abnormalities that either restrict intrathoracic space or alter pulmonary fluid dynamics.
Epidemiology
Pulm...
Case
Subchorionic hemorrhage
Published
31 Mar 2013
63% complete
Ultrasound
Article
The crisscross sign
The crisscross sign is a fetal ultrasound sign that describes the normal relationship between the ventricular outflows tracts of the fetal heart. The left ventricular outflow tract (LVOT); represented by the take-off of the aorta (Ao) from the left ventricle, is perpendicular (90o) to the right ...
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