1,812 results found
Article

Twin-to-twin transfusion syndrome

Twin-to-twin transfusion syndrome (TTTS), less commonly known as stuck twin syndrome, is a potential complication that can occur in a monochorionic twin pregnancy (either MCDA or MCMA).  Epidemiology This complication can occur in ~10% (range 15-25%) of monochorionic pregnancies, giving an est...
Article

Placental infarction

Placental infarction refers to a localized area of ischemic villous necrosis. It is a significant cause of placental insufficiency.  Epidemiology A localized infarction can occur in up to ~25% of all placental pathologies and approximately 5-20% of all gestations (on average 12.5%) 6.  Pathol...
Article

Barth syndrome

Barth syndrome (BTHS), also known as 3-methylglutaconic aciduria type II, is an extremely rare X-linked multisystem disorder that is usually diagnosed in infancy. Epidemiology Barth syndrome has an estimated prevalence of 1 in 300,000-400,000 live births. Clinical presentation It is characte...
Article

Roberts syndrome

Roberts syndrome, also known as Roberts-SC phocomelia syndrome, pseudothalidomide syndrome, or Appelt-Gerken-Lenz syndrome, is a rare congenital malformation syndrome. Clinical presentation general intrauterine growth restriction postnatal growth and developmental delay failure to thrive t...
Article

Megalencephaly

Megalencephaly is a disorder characterized by an abnormally large brain. It is primarily a proliferative disorder of embryonic origin. It may involve all or part of the cerebral hemispheres and can be bilateral or unilateral. It is often associated with polymicrogyria or agyria.  Terminology  ...
Article

Lowe syndrome

Lowe syndrome, also known as the oculocerebrorenal syndrome of Lowe, is a multisystem disorder characterized by anomalies primarily affecting the eyes, nervous system, and kidneys. Epidemiology It is an extremely rare, pan-ethnic disease, with an estimated prevalence in the general population ...
Article

Noonan syndrome with multiple lentigines

Noonan syndrome with multiple lentigines, previously known as LEOPARD syndrome (LS), is a rare autosomal dominant RASopathy that has many similarities to Noonan syndrome. Clinical presentation Despite a change in formal name, the 'LEOPARD' acronym is still useful to summarize the clinical feat...
Article

Small placenta (mnemonic)

A mnemonic to remember the causes of small placenta is: PCI 2 It can be read as percutaneous coronary intervention i.e. PCI 2 Mnemonic P: pre-eclampsia C: chromosomal anomaly e.g. Down syndrome I: intrauterine infection I: intrauterine growth restriction
Article

Coffin-Lowry syndrome

Coffin-Lowry syndrome (CLS) is a rare X-linked genetic syndrome affecting multiple body parts. Epidemiology The condition tends to affect males much more due to its X-linked inheritance. The estimated incidence is at around 1:40,000-50,000. Clinical presentation It is characterized by a numb...
Article

Partial hydatidiform mole

Partial hydatidiform mole is a type of molar pregnancy, which in turn falls under the spectrum of gestational trophoblastic disease.  Clinical presentation Clinical signs and symptoms such as abdominal pain, cramps of the lower abdomen and vaginal bleeding during pregnancy are common but non-s...
Article

Rubinstein-Taybi syndrome

Rubinstein-Taybi syndrome (RTS) is a very rare genetic multi-system disorder primarily characterized by intellectual disability, broad and often angulated thumbs and halluces, and distinctive facial features. Epidemiology The estimated incidence is 1 in 100,000-125,000 live births 5. Clinical...
Article

Juberg-Hayward syndrome

Juberg-Hayward syndrome (JHS), also known as the oro-cranio-digital syndrome, is a rare autosomal recessive syndrome characterized by the association of the following:  growth restriction microcephaly cleft lip and palate minor vertebral and rib anomalies 4 horseshoe kidneys 4 thumb anomal...
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...
Article

Radiation effects on embryonic and fetal development

Radiation effects on embryonic and fetal development are generally considered low risk compared to the normal risks of pregnancy. Most diagnostic x-ray and nuclear medicine examinations are <50 mSv and have not been demonstrated to produce any significant impact on fetal growth and development. ...
Case

Placental abruption

  Diagnosis certain
Diego F Januário Silva
Published 19 May 2024
94% complete
Photo Ultrasound
Case

Ureteric injury with urinoma formation

  Diagnosis almost certain
Tariq Walizai
Published 16 May 2024
80% complete
CT
Article

Small for dates fetus

A small for dates fetus can result from a number of factors. Pathology Etiology Fetal factors aneuploidy trisomy triploidy skeletal dysplasia(s) structural anomalies (syndromes) Maternal factors Common hypertension medication(s): fetal Warfarin syndrome hydantoin embryopathy (Dilan...
Article

Molar pregnancy

Molar pregnancies, also called hydatidiform moles, are one of the most common forms of gestational trophoblastic disease.  Epidemiology Molar pregnancies are one of the common complications of gestation, estimated to occur in one of every 1000-2000 pregnancies 3. These moles can occur in a pre...
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

Fetal parvovirus B19 infection

Fetal parvovirus B19 infection is a type of in utero infection. In certain cases it can lead to intrauterine fetal death.  Pathology  It was first reported to be associated with fetal death and hydrops fetalis in 1984. Human parvovirus B19 is the only known parvovirus virus pathogenic to human...

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