| HPO |
HP:0000125 |
Pelvic kidney |
"A developmental defect in which a kidney is located in an abnormal anatomic position within the pelvis." [HPO:probinson] |
— |
HP:0000086 |
| HPO |
HP:0000347 |
Micrognathia |
"Developmental hypoplasia of the mandible." [HPO:probinson] |
Mandibular hypoplasia, also known as micrognathia, is a term that describes an abnormally small lower jaw. |
HP:0009118 |
| HPO |
HP:0004322 |
Short stature |
"A height below that which is expected according to age and gender norms. Although there is no universally accepted definition of short stature, many refer to \"short stature\" as height more than 2 standard deviations below the mean for age and gender (or below the 3rd percentile for age and gender dependent norms)." [HPO:curators] |
— |
HP:0000002, HP:0001510 |
| HPO |
HP:0000957 |
Cafe-au-lait spot |
"Cafe-au-lait spots are hyperpigmented lesions that can vary in color from light brown to dark brown with smooth borders and having a size of 1.5 cm or more in adults and 0.5 cm or more in children." [HPO:probinson] |
The phrase cafe-au-lait comes from the French word for milk-coffee. A single cafe-au-lait spot can be an isolated finding in otherwise normal individuals. Multiple cafe-au-lait spots often indicate the presence of neurofibromatosis type 1 but may also be seen in other diseases including McCune-Albright syndrome, tuberous sclerosis, and Fanconi anemia. |
HP:0001034 |
| HPO |
HP:0012745 |
Short palpebral fissure |
"Distance between the medial and lateral canthi is more than 2 SD below the mean for age (objective); or, apparently reduced length of the palpebral fissures." [PMID:19125427] |
— |
HP:0200007 |
| HPO |
HP:0000581 |
Blepharophimosis |
"A fixed reduction in the vertical distance between the upper and lower eyelids with short palpebral fissures." [PMID:19125427] |
When the palpebral fissures are severely shortened, they cannot be widely separated, actively or passively. Blepharophimosis is an acknowledged bundled term (short vertical and horizontal distance). When palpebral fissures are severely shortened, they cannot be widely separated, actively or passively. Ptosis is the term to be used when the reduction in eyelid opening is not fixed but can be increased actively or passively. Blepharophimosis is often associated with Epicanthus inversus. |
HP:0200007 |
| HPO |
HP:0001045 |
Vitiligo |
— |
— |
HP:0001000 |
| HPO |
HP:0002860 |
Squamous cell carcinoma |
"The presence of squamous cell carcinoma of the skin." [HPO:probinson] |
— |
HP:0008069 |
| HPO |
HP:0000028 |
Cryptorchidism |
"Testis in inguinal canal. That is, absence of one or both testes from the scrotum owing to failure of the testis or testes to descend through the inguinal canal to the scrotum." [HPO:probinson, PMID:23650202] |
The gonad is mobile and can be retracted superiorly by the cremaster muscle reflex stimulated, for instance, by cold or touch. A retracted testis is not cryptorchidism. An abdominal testis cannot be distinguished by physical examination from an (Apparently) absent testis and requires radiological (or, rarely, surgical) procedures for assessment. |
HP:0000035 |
| HPO |
HP:0001876 |
Pancytopenia |
"An abnormal reduction in numbers of all blood cell types (red blood cells, white blood cells, and platelets)." [HPO:probinson] |
— |
HP:0012145 |
| HPO |
HP:0003828 |
Variable expressivity |
"A variable severity of phenotypic features." [HPO:probinson] |
This term can be applied to disease entities but not to individuals. It may be made obsolete in future versions of the HPO. |
HP:0003812 |
| HPO |
HP:0000007 |
Autosomal recessive inheritance |
"A mode of inheritance that is observed for traits related to a gene encoded on one of the autosomes (i.e., the human chromosomes 1-22) in which a trait manifests in individuals with two pathogenic alleles, either homozygotes (two copies of the same mutant allele) or compound heterozygotes (whereby each copy of a gene has a distinct mutant allele)." [HPO:probinson] |
— |
HP:0000005 |
| HPO |
HP:0009777 |
Absent thumb |
"Absent thumb, i.e., the absence of both phalanges of a thumb and the associated soft tissues." [HPO:probinson, PMID:19125433] |
— |
HP:0009380, HP:0009601 |
| HPO |
HP:0009778 |
Short thumb |
"Hypoplasia (congenital reduction in size) of the thumb." [HPO:probinson] |
— |
HP:0009381, HP:0009601 |
| HPO |
HP:0000085 |
Horseshoe kidney |
"A connection of the right and left kidney by an isthmus of functioning renal parenchyma or fibrous tissue that crosses the midline." [HPO:probinson] |
— |
HP:0100542 |
| HPO |
HP:0001903 |
Anemia |
"A reduction in erythrocytes volume or hemoglobin concentration." [HPO:probinson] |
Anemia is not a specific entity but can result from many underlying pathologic processes. The three main causes of anemia are blood loss, decreased or faulty red blood cell production, and increased destruction of red blood cells. Various classifications are in clinical use including a classification according to the mean corpuscular volume (MCV) of the erythrocytes: microcytic, macrocytic, or normocytic. Anemias can also be classified according to variations in cell size and shape, as reflected by the red-cell distribution width (RDW). Additionally, anemias can be classified into those of inadequate production and hemolytic anemias. |
HP:0001877 |
| HPO |
HP:0002984 |
Hypoplasia of the radius |
"Underdevelopment of the radius." [HPO:probinson] |
— |
HP:0006501, HP:0009821, HP:0045009 |
| HPO |
HP:0000252 |
Microcephaly |
"Head circumference below 2 standard deviations below the mean for age and gender." [PMID:15806441, PMID:19125436, PMID:25465325, PMID:9683597] |
Head circumference is measured from just above the glabella (the most prominent point on the frontal bone above the root of the nose) to the most posterior prominent point of the occipital bone using a tape measure. Some standard charts are organized by centiles, others by standard deviations. It is important to add an indication of how far below the normal standard the head circumference is if an accurate assessment of this can be made. Microcephaly is an absolute term. The term relative microcephaly can be used when the head size centile is less than the centile for height, for example, head size at the 3rd centile with height at the 75% for age and sex. On prenatal ultrasound, microcephaly is diagnosed if the head circumference or the biparietal diameter is more than three standard deviations below the mean. Microcephaly is divided into primary microcephaly, which is present at birth, and secondary microcephaly, which develops postnatally. The crucial difference between these groupings is that primary microcephaly is usually a static developmental anomaly, whereas secondary microcephaly indicates a progressive neurodegenerative condition |
HP:0007364, HP:0040195 |
| HPO |
HP:0000414 |
Bulbous nose |
"Increased volume and globular shape of the anteroinferior aspect of the nose." [PMID:19152422] |
This is a bundled term, but as it is useful in practice it is kept here. This alteration of size and shape may be limited to the tip, but may involve the lower third of the nose. If only the width of the nasal tip is increased this should be coded as Broad nasal tip. |
HP:0000436, HP:0005105 |
| HPO |
HP:0000365 |
Hearing impairment |
"A decreased magnitude of the sensory perception of sound." [HPO:probinson] |
Hearing loss can be categorized by which part of the auditory system is damaged, as conductive hearing loss, sensorineural hearing loss, and mixed hearing loss. Another axis of classification uses the degree of hearing impairment. The degree of hearing loss is computed by using a three frequency average taken at 500 Hz, 1,000 Hz and 2,000 Hz. The average of these three frequencies is called the Pure Tone Average (PTA). 0-20 dB is considered normal, 21-40 dB mild loss, 41-60 dB moderate loss, 61-70 dB moderately severe loss,71-90 dB severe loss, and greater than 90 dB profound loss. Note that the word deafness is occasionally used to describe partial hearing loss. The World Health Organization uses the word deafness to refer to complete loss of the ability to hear, and hearing impairment to refer to any degree of reduced hearing. |
HP:0000364 |
| HPO |
HP:0000347 |
Micrognathia |
"Developmental hypoplasia of the mandible." [HPO:probinson] |
Mandibular hypoplasia, also known as micrognathia, is a term that describes an abnormally small lower jaw. |
HP:0009118 |
| HPO |
HP:0001679 |
Abnormal aortic morphology |
"An abnormality of the aorta." [HPO:probinson, PMID:24910511] |
— |
HP:0011004, HP:0030962 |
| HPO |
HP:0000175 |
Cleft palate |
"Cleft palate is a developmental defect of the palate resulting from a failure of fusion of the palatine processes and manifesting as a separation of the roof of the mouth (soft and hard palate)." [HPO:probinson] |
Cleft palate is a developmental defect that occurs between the 7th and 12th week of pregnancy. Normally, the palatine processes fuse during this time to form the soft and hard palate. A failure of fusion results in a cleft palate. The clinical spectrum ranges from bifid uvula, to (incomplete or complete) cleft of the soft palate, up to (complete or incomplete) cleft of both the soft and hard palate. |
HP:0000202, HP:0100737 |
| HPO |
HP:0000508 |
Ptosis |
"The upper eyelid margin is positioned 3 mm or more lower than usual and covers the superior portion of the iris (objective); or, the upper lid margin obscures at least part of the pupil (subjective)." [PMID:19125427] |
— |
HP:0012373 |
| HPO |
HP:0000286 |
Epicanthus |
"A fold of skin starting above the medial aspect of the upper eyelid and arching downward to cover, pass in front of and lateral to the medial canthus." [HPO:probinson] |
In extreme cases, the skin fold can start as high as the eyebrow; this is called epicanthus superciliaris. |
HP:0000492 |