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Crouzon Syndrome-Acanthosis Nigricans Syndrome

Crouzon-Dermoskeletal Syndrome


Presentation

  • Sacral pits associated with pink plaques were present in 2 patients, verrucae vulgaris were present in 2 patients, and another presented with molluscum contagiosum.[jamanetwork.com]
  • Rebeca Ruth Briones Andriuoli, Yaira Loor Moran, Paola Moncayo Hinojosa and Maria Daniela Rendon Salazar Abstract Crouzon syndrome is an anomaly or congenital defect with an autosomal dominant pattern that is present due to the premature closure of the[omicsonline.org]
  • Vertebral anomalies and conductive hearing loss were present with less frequency. Some characteristics considered typical of this condition (jaw cementomas, acanthomas and finger abnormalities) were absent in most of the patients.[scienceopen.com]
  • We report on an infant who presented at birth with multisuture synostosis, turribrachycephaly, midface hypoplasia, beaked nose, low set ears, a high palate and short squat appearing thumbs, and great toes without deviation.[onlinelibrary.wiley.com]
Abdominal Obesity
  • abdominal obesity-metabolic syndrome ablepharon macrostomia syndrome Acanthosis Nigricans Muscle Cramps Acral Enlargement achondrogenesis type II acrofacial dysostosis Cincinnati type acrokeratosis verruciformis ADULT syndrome adult-onset autosomal dominant[rgd.mcw.edu]
Pallister-Hall Syndrome
  • 5 myofibrillar myopathy 6 nail-patella syndrome neurofibromatosis nevoid basal cell carcinoma syndrome ocular albinism with sensorineural deafness Oculomaxillofacial Dysostosis Opitz GBBB Syndrome, Type II ovarian dysgenesis 8 pachyonychia congenita Pallister-Hall[rgd.mcw.edu]
Piebaldism
  • Pallister-Hall syndrome PAPA syndrome paraganglioma Parkinson's disease 1 Parkinson's disease 21 Parkinson's disease 22 Parkinson's disease 4 Parkinson's disease 8 Pelger-Huet anomaly permanent neonatal diabetes mellitus photosensitive trichothiodystrophy piebaldism[rgd.mcw.edu]
Short Arm
  • The mutation originates in the short arm of the chromosome 10 which would cause a random change in the gene FGFR2, in the case of association with acanthosis nigricans the mutation is present in the FGFR3 compromising the short arm of chromosome 4.[omicsonline.org]
  • This process is due to mutations in the FGFR3 gene, located on the short arm of chromosome 4 (4p16.3). This gene encodes a protein called receptor 3 fibroblast growth factor.[ivami.com]
Short Hands
  • Cranial hypertension - Hydrocephaly - Hypertelorism - Hypoplastic maxillary bones / zygomatic bones / maxillary hypoplasia - Metacarpal anomalies / Archibald's sign - Mid-facial hypoplasia / short / small midface - Proptosis / exophthalmos - Ptosis - Short[csbg.cnb.csic.es]
Beaked Nose
  • We report on an infant who presented at birth with multisuture synostosis, turribrachycephaly, midface hypoplasia, beaked nose, low set ears, a high palate and short squat appearing thumbs, and great toes without deviation.[onlinelibrary.wiley.com]
  • The craniosynostosis causes changes to the shape of the head as well as unique facial features that may include wide-set eyes, a beaked nose, and a small upper jaw.[resourcerepository.org]
  • nose - Facial pain / cephalalgia / migraine - High vaulted / narrow palate - Optic nerve anomaly / optic atrophy / anomaly of the papilla - Respiratory distress / dyspnea / respiratory failure / lung volume reduction - Sacro-coccyx / sacrum anomaly -[csbg.cnb.csic.es]
  • They include prematurely fused skull bones, which affect the shape of the head and face; wide-set, bulging eyes due to shallow eye sockets; eyes that do not point in the same direction ( strabismus ); a small, beaked nose; and an underdeveloped upper[en.wikipedia.org]

Workup

  • Although the patient was receiving metformin treatment for insulin resistance, she had not undergone any prior workup to identify a unifying syndromic cause for her physical and biochemical findings.[mdedge.com]
  • Clinical Testing and Workup CT scanning and MRIs are used to help detect or characterize certain abnormalities that may be associated with the disorder (e.g., craniosynostosis, other skeletal abnormalities, etc.).[rarediseases.org]

Treatment

  • It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. Our staff consists of biologists and biochemists that are not trained to give medical advice .[uniprot.org]
  • Master the latest advances in ophthalmology: radical changes in the management of macular disease, including the widespread introduction of VEGF inhibitor therapy; recent developments in the investigation and treatment of retinal vascular disease; new[books.google.com]
  • Apply the latest treatment options in pediatric care with new chapters on pediatric sleep disorders, pediatric infectious disease, and evaluation and management of the infant airway.[books.google.com]
  • However, any improvement seen was lost after discontinuation of the treatment.[jamanetwork.com]

Prognosis

  • Thus, the prognosis of Acanthosis Nigricans is excellent with adequate (skin) treatment.[dovemed.com]
  • The severity of the cranial bone deformations, associated systemic abnormalities and age of diagnosis may yield variable treatment outcomes and overall prognosis [6].[eyewiki.aao.org]
  • Crouzon Syndrome Photo Prognosis : Crouzon Syndrome is a genetic defect which means the baby is born with such a deformity. The ideal solution for this is to get a plastic surgery of the face done while the baby is less than a year old.[diseasesdoctor.com]
  • Prognosis depends on the severity of malformations. Innovations in craniofacial surgery have enabled patients to achieve their full potential by maximizing their opportunities for intellectual growth, physical competence and social interaction.[scialert.net]

Etiology

  • Etiology CAN is caused by a specific p.Ala391Glu mutation in the fibroblast growth-factor receptor 3 FGFR3 gene (4p16.3), involved in regulation of cell proliferation, differentiation and apoptosis.[orpha.net]
  • The etiology of acanthosis nigricans is variable and can be one of the following: - Hereditary with dominant autosomal transmission. - Associated with genetic abnormalities or endocrine diseases. - Pseudo-acanthosis nigricans resulting from complications[scielo.br]
  • Cohen MM Jr (2009) Cloverleaf skulls: etiologic heterogeneity and pathogenetic variability. J Craniofac Surg 20(Suppl 1):652–656 CrossRef PubMed Google Scholar 6. Curth HO (1968) The necessity of distinguishing four types of acanthosis nigricans.[link.springer.com]
  • Regarding etiology, frequently patients were unsure about the underlying cause.[emedicine.medscape.com]
  • […] that is characterized by thick, hyperpigmented, and verrucous plaques. 2,3 Although most common in symmetric distribution on flexural and intertriginous areas, AN also may involve mucosal surfaces. 4 Acanthosis nigricans is associated with multiple etiologic[mdedge.com]

Epidemiology

  • Summary Epidemiology CAN has an estimated prevalence of 1/1,000,000 newborns. Fewer than 70 cases have been described in the medical literature. A female-to-male sex ratio of 2.4:1 has been reported.[orpha.net]
  • Crouzono-dermoskeletal syndrome Classification (Orphanet): - Rare bone disease - Rare developmental defect during embryogenesis - Rare eye disease - Rare genetic disease Classification (ICD10): - Congenital malformations, deformations and chromosomal abnormalities - Epidemiological[csbg.cnb.csic.es]
  • The anomalies are organized by anatomical system and presented in a consistent manner, including details of the clinical presentation, epidemiology, embryology, treatment and prevention for each anomaly.[books.google.ro]
  • Alderman BW et al. (1988) An epidemiologic study of craniosynostosis: risk indicators for the occurrence of craniosynostosis in Colorado. Am J Epidemiol 128(2): 431-438. Abstract on PubMed. 5.[forgottendiseases.org]
  • Beyond skeletal effects, the FGFR2 C342Y/ mutation is now implicated in affecting tooth development. [18, 20, 21] Epidemiology Frequency The prevalence is very low; Crouzon syndrome is currently estimated to occur in 1 in 25,000 people in the general[emedicine.medscape.com]
Sex distribution
Age distribution

Pathophysiology

  • Pathophysiology Dysplasias of the skeleton (including craniofacial dysostosis) are caused by the malformations of the mesenchyme and ectoderm. The unknown teratogenic factors are taken into account.[emedicine.medscape.com]
  • The presence of hydrocephalus in 11 of 23 patients with JFA or JFS (Groups 1–3) supports the importance of venous hypertension as a pathophysiologic mechanism in the development of hydrocephalus in patients with craniosynostosis (15).[ajnr.org]

Prevention

  • Repeated SGR fixes succeeded in capping doc pay. ( 23323450 ) Robeznieks A 2012 18 Crouzon syndrome with acanthosis nigricans: a case-based update. ( 21136065 ) Di Rocco F...Renier D 2011 19 Vets asked to 'do all they can' to help prevent TB fraud. ([malacards.org]
  • The anomalies are organized by anatomical system and presented in a consistent manner, including details of the clinical presentation, epidemiology, embryology, treatment and prevention for each anomaly.[books.google.ro]
  • This early fusion prevents the skull from growing normally and affects the shape of the head and face. Crouzon syndrome is seen in about 1 per 60,000 newborns. It is the most common craniosynostosis syndrome.[cranioutah.com]
  • This early fusion prevents the skull from growing normally and affects the shape of the head and face. Many features of Crouzon syndrome result from the premature fusion of the skull bones.[craniofacialmd.com]
  • Prevention : Since it is a genetic defect which causes abnormal mutations on Chromosome 10, there is nothing much that you can do to prevent it.[diseasesdoctor.com]

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