Cataract, and Headache

PBD14B is an autosomal recessive peroxisome biogenesis disorder characterized clinically by mild intellectual disability, congenital cataracts, progressive hearing loss, and polyneuropathy (Ebberink et al., 2012), all of which had been observed in patients with mild peroxisomal biogenesis disorders (e.g., Kelley et al., 1986; Poll-The et al., 1987). Additionally, recurrent migraine-like episodes following mental stress or physical exertion, not a common feature in peroxisome disorders, was reported.Thoms and Gartner (2012) classified the disorder described by Ebberink et al. (2012) in their patient as a mild 'Zellweger syndrome (OMIM ) spectrum' (ZSS) disorder. See PBD1B (OMIM ) for a phenotypic description and discussion of genetic heterogeneity of less severe phenotypes on the Zellweger syndrome spectrum. See PBD9B (OMIM ) for another atypical peroxisome biogenesis disorder.

• Intellectual disability
• Hearing impairment
• Nystagmus
• Sensorineural hearing impairment
• Muscle weakness

SOURCES: OMIM MENDELIAN

Sporadic Creutzfeldt-Jakob disease (sCJD) is a subacute fatal neurodegenerative disease belonging to the group of prion diseases, characterized by a clinical triad of dementia, myoclonus, and EEG anomalies, along with neuropathological evidence of neuronal loss, spongiform changes, and astrocytosis. There are three types of CJD: sporadicCJD (sCJD), inherited CJD (see this term), and iatrogenic and variant CJD (vCJD).

SPORADIC CREUTZFELDT-JAKOB DISEASE Is also known as sporadic cjd|creutzfeldt-jakob disease, familial

• Ataxia
• Cataract
• Spasticity
• Visual impairment
• Peripheral neuropathy

SOURCES: OMIM ORPHANET MENDELIAN

Neurofibromatosis type 2 (NF2) is a tumor-prone disorder characterized by the development of multiple schwannomas and meningiomas.

NEUROFIBROMATOSIS TYPE 2 Is also known as nf2|bilateral acoustic neurofibromatosis|central neurofibromatosis

• Ataxia
• Sensorineural hearing impairment
• Cataract
• Visual impairment
• Gait disturbance

SOURCES: ORPHANET MENDELIAN

Sensory ataxic neuropathy-dysarthria-ophthalmoparesis syndrome is characterised by adult-onset severe sensory ataxic neuropathy, dysarthria and chronic progressive external ophthalmoplegia.

SENSORY ATAXIC NEUROPATHY-DYSARTHRIA-OPHTHALMOPARESIS SYNDROME Is also known as sando

SOURCES: ORPHANET MENDELIAN

Autosomal dominant familial hematuria-retinal arteriolar tortuosity-contractures syndrome is characterised by the association of hematuria (without proteinuria) with extrarenal manifestations: retinal arterial tortuosities responsible for retinal haemorrhages, cardiac arrhythmia, Raynaud phenomena and congenital muscular contractures.

HANAC SYNDROME Is also known as hereditary angiopathy-nephropathy-aneurysms-muscle cramps syndrome|autosomal dominant familial hematuria-retinal arteriolar tortuosity-contractures syndrome

• Seizures
• Strabismus
• Cataract
• Flexion contracture
• Visual impairment

SOURCES: MESH OMIM ORPHANET MENDELIAN

CATARACT 36; CTRCT36 Is also known as cataract, autosomal recessive congenital 4|catc4

• Cataract

SOURCES: OMIM MENDELIAN

Hereditary hyperferritinemia with congenital cataracts is characterized by the association of early onset (although generally absent at birth) cataract with persistently raised plasma ferritin concentrations in the absence of iron overload.

HEREDITARY HYPERFERRITINEMIA-CATARACT SYNDROME Is also known as hereditary hyperferritinemia with congenital cataracts|bonneau-beaumont syndrome|hhcs

• Cataract
• Abnormality of metabolism/homeostasis

SOURCES: ORPHANET MENDELIAN

Vestibular schwannoma is a rare tumor of the posterior fossa originating in the Schwann cells of the vestibular transitional zone of the vestibulocochlear nerve that can be benign, small, slow growing and asymptomatic or large, faster growing and aggressive and potentially fatal, presenting with symptoms of hearing and balance impairment, vertigo, ataxia, headache and fifth, sixth or seventh cranial nerve dysfunction and facial numbness.

VESTIBULAR SCHWANNOMA Is also known as bilateral acoustic neurofibromatosis|acoustic neurilemoma|acoustic schwannomas, bilateral|banf|neurofibromatosis, central type|acoustic neurinoma|acn|acoustic neuroma|acoustic neurinoma, bilateral

• Seizures
• Hearing impairment
• Ataxia
• Neoplasm
• Sensorineural hearing impairment

SOURCES: ORPHANET OMIM MENDELIAN

Both familial and sporadic pituitary adenomas have been found to be caused by germline mutation in the CDH23 gene. Familial pituitary adenoma types include growth hormone (GH)-secreting and nonfunctional tumors. Sporadic pituitary adenoma types include GH-secreting, nonfunctional, prolactin (PRL)-secreting, adrenocorticotropin (ACTH)-secreting, thyroid-stimulating hormone (TSH)-secreting, and plurihormonal (GH and TSH) tumors.For a general description and a discussion of genetic heterogeneity of pituitary adenomas, see PITA1 (OMIM ).

• Neoplasm
• Headache
• Pituitary adenoma

SOURCES: OMIM MENDELIAN

Congenital bile acid synthesis defect type 4 (BAS defect type 4) is an anomaly of bile acid synthesis (see this term) characterized by mild cholestatic liver disease, fat malabsorption and/or neurological disease.

CONGENITAL BILE ACID SYNTHESIS DEFECT TYPE 4 Is also known as 2-methylacyl-coa racemase deficiency|amacr deficiency|basd4|alpha-methyl-acyl-coa racemase deficiency|liver disease-retinitis pigmentosa-polyneuropathy-epilepsy syndrome

• Seizures
• Global developmental delay
• Ataxia
• Cataract
• Spasticity

SOURCES: OMIM ORPHANET MENDELIAN