Phenotypes
Db Link Name Definition Comment Is a
HPO HP:0000054 Micropenis "Abnormally small penis. At birth, the normal penis is about 3 cm (stretched length from pubic tubercle to tip of penis) with micropenis less than 2.0-2.5 cm." [HPO:probinson, PMID:15102623] HP:0008736
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
HPO HP:0000486 Strabismus "A misalignment of the eyes so that the visual axes deviate from bifoveal fixation. The classification of strabismus may be based on a number of features including the relative position of the eyes, whether the deviation is latent or manifest, intermittent or constant, concomitant or otherwise and according to the age of onset and the relevance of any associated refractive error." [HPO:probinson, PMID:26319345, UManchester:psergouniotis] HP:0000549
HPO HP:0001250 Seizure "A seizure is an intermittent abnormality of nervous system physiology characterised by a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain." [HPO:probinson, PMID:15816939] A type of electrographic seizure has been proposed in neonates which does not have a clinical correlate, it is electrographic only. The term epilepsy is not used to describe recurrent febrile seizures. Epilepsy presumably reflects an abnormally reduced seizure threshold. HP:0012638
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: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:0000822 Hypertension "The presence of chronic increased pressure in the systemic arterial system." [HPO:probinson] Hypertension is sustained elevation of resting systolic BP (140 mm Hg or higher), diastolic BP (90 mm Hg or higher), or both. HP:0032263
HPO HP:0004331 Decreased skull ossification "A reduction in the magnitude or amount of ossification of the skull." [HPO:probinson] HP:0002703, HP:0011849
HPO HP:0000248 Brachycephaly "An abnormality of skull shape characterized by a decreased anterior-posterior diameter. That is, a cephalic index greater than 81%. Alternatively, an apparently shortened anteroposterior dimension (length) of the head compared to width." [HPO:probinson, PMID:19125436] Cephalic index is the ratio of head width expressed as a percentage of head length. The normal range is 76-80.9%. Head length is measured between the glabella (the most prominent point on the frontal bone above the root of the nose) and the most prominent part of the occiput in the midline, using spreading calipers. Head width is measured between the most lateral points of the parietal bones on each side of the head, using spreading calipers. Cephalic index standards are derived from Caucasians and have limited relevance for other races and ethnicities. Current norms also have limited validity because of changes in infant sleeping position and consequent changes in head shape. New data should be developed. Brachycephaly is distinct from Flat occiput, but both can be present in the same individual and should be coded separately. HP:0002648
HPO HP:0000322 Short philtrum "Distance between nasal base and midline upper lip vermilion border more than 2 SD below the mean. Alternatively, an apparently decreased distance between nasal base and midline upper lip vermilion border." [PMID:19152422] HP:0000288
HPO HP:0001249 Intellectual disability "Subnormal intellectual functioning which originates during the developmental period. Intellectual disability, previously referred to as mental retardation, has been defined as an IQ score below 70." [HPO:probinson] This term should be used for children at least five years old. For younger children, consider the term Global developmental delay (HP:0001263). HP:0011446, HP:0012759
HPO HP:0002667 Nephroblastoma "The presence of a nephroblastoma, which is a neoplasm of the kidney that primarily affects children." [HPO:probinson] Nephroblastoma is characterized by an abnormal proliferation of the metanephric blastema cells, which are believed to be primitive embryologic cells of the kidney. Clinically, nephroblatoma usually presents as an abdominal mass, and in some cases with abdominal pain, hypertension, hematuria, and fever. HP:0011794
HPO HP:0000455 Broad nasal tip "Increase in width of the nasal tip." [HPO:probinson, PMID:19152422] Nasal tip width is assessed at the anterior junction of the alae and the tip. This is easier in persons with a somewhat squared shape of the nasal tip. This may be best viewed from the inferior aspect of the nose. No objective measures are available. See Bulbous nose for a related term. HP:0000436, HP:0000463
HPO HP:0000426 Prominent nasal bridge "Anterior positioning of the nasal root in comparison to the usual positioning for age." [PMID:19152422] A prominent nasal bridge can occur irrespective of the width of the nasal bridge, and the width should be assessed separately. The nasal bridge becomes more prominent with age. Although the nasal root may be anteriorly placed without increasing the space between the eyes, prominence of the nasal bridge may be accompanied by Telecanthus or ocular Hypertelorism. If such findings are present these should be coded separately. Deep-set eyes may lead to the impression of a prominent nasal bridge, but this finding should be coded separately. HP:0000422