MedGen

Any retinitis pigmentosa in which the cause of the disease is a mutation in the IFT172 gene. [from MONDO]

Koolen-de Vries syndrome (KdVS) is characterized by developmental delay / intellectual disability, neonatal/childhood hypotonia, dysmorphisms, congenital malformations, and behavioral features. Psychomotor developmental delay is noted in all individuals from an early age. The majority of individuals with KdVS function in the mild-to-moderate range of intellectual disability. Other findings include speech and language delay (100%), epilepsy (~33%), congenital heart defects (25%-50%), renal and urologic anomalies (25%-50%), and cryptorchidism (71% of males). Behavior in most is described as friendly, amiable, and cooperative. [from GeneReviews]

Immunodeficiency-71 with inflammatory disease and congenital thrombocytopenia (IMD71) is an autosomal recessive immunologic disorder characterized by the onset of recurrent infections and inflammatory features such as vasculitis and eczema in infancy or early childhood. Infectious agents include bacteria and viruses. Laboratory findings are variable, but usually show thrombocytopenia, sometimes with abnormal platelet morphology, increased serum IgE, IgA, or IgM, leukocytosis, decreased or increased T lymphocytes, and increased eosinophils. Detailed studies show impaired neutrophil and T-cell chemotaxis, as well as impaired T-cell activation due to defects in F-actin (see 102610) polymerization (summary by Brigida et al., 2018). [from OMIM]

Developmental and epileptic encephalopathy-71 (DEE71) is characterized by early neonatal refractory seizures, respiratory failure, structural brain abnormalities and cerebral edema, with death within weeks after birth. Glutamine levels are significantly increased (z score 3.2-11.7). Three patients have been described (summary by Rumping et al., 2019). [from OMIM]

Autosomal recessive spastic paraplegia type 71 is a rare genetic pure hereditary spastic paraplegia disorder with characteristics of infancy onset of crural spastic paraparesis with scissors gait, extensor plantar response and increased tendon reflexes. Neuroimaging reveals a thin corpus callosum and electromyography and nerve conduction velocity studies are normal. [from SNOMEDCT_US]

Spermatogenic failure-71 (SPGF71) is characterized by male infertility due to nonobstructive azoospermia (Alhathal et al., 2020). For a general phenotypic description and discussion of genetic heterogeneity of spermatogenic failure, see SPGF1 (258150). [from OMIM]

Autosomal dominant intellectual developmental disorder-71 with behavioral abnormalities (MRD71) is a neurodevelopmental disorder characterized by global developmental delay with hypotonia, speech delay, and variably impaired cognitive development. Almost all affected individuals show marked behavioral manifestations, including autism spectrum disorder (ASD), ADHD, hypersensitivity, and aggression. Many have dysmorphic features, although there is not a common gestalt (Harris et al., 2021). [from OMIM]

An autosomal recessive nonsyndromic deafness that has material basis in variation in the chromosome region 8p22-p21.3. [from MONDO]

A viral infectious disease that results in infection located in mouth, has material basis in Human coxsackievirus A16, has material basis in Human enterovirus 71, has material basis in group B coxsackievirus, or has material basis in echoviruses, which are transmitted by ingestion of food contaminated with feces, transmitted by contact with pharyngeal secretions, or transmitted by droplet spread of oronasal secretions. The infection has symptom fever, has symptom sore throat, and has symptom lesions in the back area of the mouth, particularly the soft palate or tonsillar pillars. [from MONDO]