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Craniofacial dysplasia

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https://www.readbyqxmd.com/read/29766474/masses-of-developmental-and-genetic-origin-affecting-the-paediatric-craniofacial-skeleton
#1
REVIEW
Salvatore Stefanelli, Pravin Mundada, Anne-Laure Rougemont, Vincent Lenoir, Paolo Scolozzi, Laura Merlini, Minerva Becker
Although rare, masses and mass-like lesions of developmental and genetic origin may affect the paediatric craniofacial skeleton. They represent a major challenge in clinical practice because they can lead to functional impairment, facial deformation and disfigurement. The most common lesions include fibrous dysplasia, dermoid cysts, vascular malformations and plexiform neurofibromas. Less common lesions include torus mandibularis and torus palatinus, cherubism, nevoid basal cell carcinoma syndrome, meningoencephalocele and nasal sinus tract...
May 15, 2018: Insights Into Imaging
https://www.readbyqxmd.com/read/29744853/fibrous-dysplasia-clinicopathologic-presentation-of-36-cases
#2
Mine Özşen, Ülviye Yalçinkaya, Muhammed Sadık Bilgen, Zeynep Yazici
OBJECTIVE: Fibrous dysplasia is a slowly progressing bone lesion resulting from displacement of the normal medullary bone with abnormal fibroosseous tissue. The aim of this study was to assess the similarities and differences of our cases in relation to published reports. MATERIAL AND METHOD: In this study, the archives of the Uludag University Medical Faculty Department of Pathology were screened for fibrous dysplasia cases between 2004 and 2016. RESULTS: Within the mentioned period, there were 36 cases diagnosed as fibrous dysplasia...
May 10, 2018: Türk Patoloji Dergisi
https://www.readbyqxmd.com/read/29741626/functional-analysis-of-a-hypomorphic-allele-shows-that-mmp14-catalytic-activity-is-the-prime-determinant-of-the-winchester-syndrome-phenotype
#3
Ivo J H M de Vos, Evelyn Yaqiong Tao, Sheena Li Ming Ong, Julian L Goggi, Thomas Scerri, Gabrielle R Wilson, Chernis Guai Mun Low, Arnette Shi Wei Wong, Dominic Grussu, Alexander P A Stegmann, Michel van Geel, Renske Janssen, David J Amor, Melanie Bahlo, Norris R Dunn, Thomas J Carney, Paul J Lockhart, Barry J Coull, Maurice A M van Steensel
Winchester syndrome (WS, MIM #277950) is an extremely rare autosomal recessive skeletal dysplasia characterized by progressive joint destruction and osteolysis. To date, only one missense mutation in MMP14, encoding the membrane-bound matrix metalloprotease 14, has been reported in WS patients. Here, we report a novel hypomorphic MMP14 p.Arg111His (R111H) allele, associated with a mitigated form of WS. Functional analysis demonstrated that this mutation, in contrast to previously reported human and murine MMP14 mutations, does not affect MMP14's transport to the cell membrane...
May 8, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/29698804/phenotype-variability-in-hajdu-cheney-syndrome
#4
Miriam Regev, Ben Pode-Shakked, Jeffrey M Jacobson, Annick Raas-Rothschild, David B Goldstein, Yair Anikster
Hajdu Cheney syndrome is a rare autosomal dominant skeletal dysplasia, with multi-organ involvement, caused by pathogenic variants in NOTCH2. It is characterized by progressive focal bone destruction, including acro-osteolysis and generalized osteoporosis, craniofacial anomalies, hearing loss, cardiovascular involvement and polycystic kidneys. Distinct radiographic findings, such as a serpentine fibula, may aid in facilitating the diagnosis. Despite several dozens of cases described in the literature, diagnosis often remains elusive, resulting in many cases in a delay in diagnosis reaching adolescence or adulthood...
April 23, 2018: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/29695406/a-novel-association-of-campomelic-dysplasia-with-hydrocephalus-due-to-an-unbalanced-chromosomal-translocation-upstream-of-sox9
#5
Prince Antwi, Christopher S Hong, Daniel Duran, Jin Sheng Chih, Weilai Dong, Michael DiLuna, Kristopher T Kahle
Campomelic dysplasia is a rare skeletal dysplasia characterized by Pierre-Robin sequence, craniofacial dysmorphism, shortening and angulation of long bones, tracheobronchomalacia, and occasionally sex reversal. The disease is due to mutations in SOX9 or chromosomal rearrangements involving the long arm of chromosome 17 harboring the SOX9 locus. SOX9, a transcription factor, is indispensible in establishing and maintaining neural stem cells in the CNS. We present a patient with angulation of long bones and external female genitalia on prenatal ultrasound who was subsequently found to harbor the chromosomal abnormality 46, XY, t(6;17) (p21...
April 25, 2018: Cold Spring Harbor Molecular Case Studies
https://www.readbyqxmd.com/read/29675824/lamellation-in-fibrous-dysplasia-a-clinicopathologic-study
#6
Ali Fuat Cicek, Melih Kilinc, Mukerrem Safali, Omer Gunhan
BACKGROUND: Fibrous dysplasia (FD) is a maturation defect characterized by immature woven bones and stroma. However, especially in craniofacial bones, lamellation can be seen and this is associated with the maturation. AIM: To show maturation in FD and discuss the factors that may affect the maturation. MATERIALS AND METHODS: Ninety-five FD cases were divided into three subgroups according to the lamellation percentage as Groups 1, 2 and 3 (low, moderate and high lamellation, respectively)...
April 20, 2018: Histology and Histopathology
https://www.readbyqxmd.com/read/29624481/craniofacial-manifestations-of-systemic-disorders-ct-and-mr-imaging-findings-and-imaging-approach
#7
V Carlota Andreu-Arasa, Margaret N Chapman, Hirofumi Kuno, Akifumi Fujita, Osamu Sakai
Many systemic diseases or conditions can affect the maxillofacial bones; however, they are often overlooked or incidentally found at routine brain or head and neck imaging performed for other reasons. Early identification of some conditions may significantly affect patient care and alter outcomes. Early recognition of nonneoplastic hematologic disorders, such as thalassemia and sickle cell disease, may help initiate earlier treatment and prevent serious complications. The management of neoplastic diseases such as lymphoma, leukemia, or Langerhans cell histiocytosis may be different if diagnosed early, and metastases to the maxillofacial bones may be the first manifestation of an otherwise occult neoplasm...
April 6, 2018: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29599748/polyostotic-fibrous-dysplasia-with-and-without-mccune-albright-syndrome-clinical-features-in-a-nordic-pediatric-cohort
#8
Pauliina Utriainen, Helena Valta, Sigridur Björnsdottir, Outi Mäkitie, Eva Horemuzova
Objective: Fibrous dysplasia (FD) presents as skeletal lesions in which normal bone is replaced by abnormal fibrous tissue due to mosaic GNAS mutation. McCune-Albright syndrome (MAS) refers to FD combined with skin (café-au-lait) and endocrine manifestations. This study describes the clinical childhood manifestations of polyostotic FD and MAS in a Nordic cohort. Patients and design: We retrospectively reviewed a cohort of pediatric patients ( n  = 16) with polyostotic FD with or without MAS diagnosed and followed in two Nordic Pediatric tertiary clinics between 1996 and 2017...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29523099/novel-heterozygous-pathogenic-variants-in-chuk-in-a-patient-with-aec-like-phenotype-immune-deficiencies-and-1q21-1-microdeletion-syndrome-a-case-report
#9
Maxime Cadieux-Dion, Nicole P Safina, Kendra Engleman, Carol Saunders, Elena Repnikova, Nikita Raje, Kristi Canty, Emily Farrow, Neil Miller, Lee Zellmer, Isabelle Thiffault
BACKGROUND: Ectodermal dysplasias (ED) are a group of diseases that affects the development or function of the teeth, hair, nails and exocrine and sebaceous glands. One type of ED, ankyloblepharon-ectodermal defects-cleft lip/palate syndrome (AEC or Hay-Wells syndrome), is an autosomal dominant disease characterized by the presence of skin erosions affecting the palms, soles and scalp. Other clinical manifestations include ankyloblepharon filiforme adnatum, cleft lip, cleft palate, craniofacial abnormalities and ectodermal defects such as sparse wiry hair, nail changes, dental changes, and subjective hypohydrosis...
March 9, 2018: BMC Medical Genetics
https://www.readbyqxmd.com/read/29498969/surgical-management-and-evaluation-of-the-craniofacial-growth-and-morphology-in-cleidocranial-dysplasia
#10
Stephen L Greene, Chung How Kau, Somsak Sittitavornwong, Kathlyn Powell, Noel K Childers, Mary MacDougall, Ejvis Lamani
Cleidocranial dysplasia (CCD, MIM 119600) is a rare autosomal dominant disorder affecting bone, cartilage, craniofacial growth, and tooth formation leading to supernumerary teeth. Few reports delineate the genotype-phenotype correlations related to the variations in craniofacial morphology and patterning of the dentition and the complexity of treating patient's malocclusion. Successful management of the craniofacial deformities in patients with CCD requires a multidisciplinary team of healthcare specialists...
March 1, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29487646/multiple-unerupted-and-supernumerary-teeth-in-a-patient-with-cleidocranial-dysplasia
#11
Galal Omami
Cleidocranial dysplasia is an extremely rare familial disorder characterized by partial or complete absence of clavicles, characteristic craniofacial deformities, and the presence of numerous supernumerary and unerupted teeth. Here, the author reviews the striking radiographic findings of cleidocranial dysplasia in a 16-year-old adolescent boy who presented with delayed teeth eruption.
February 2018: Radiology Case Reports
https://www.readbyqxmd.com/read/29485574/locally-aggressive-fibrous-dysplasia-mimicking-malign-calvarial-lesion
#12
Hayri Ogul, Emine Keskin
Fibrous dysplasia is an unusual benign bone tumor. It is divided into 3 groups as monostotic, polyostotic, and craniofacial form. The authors reported an unusual patient with fibrous dysplasia with an aggressive radiologic appearance.
May 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29484064/peripheral-osteoma-compound-odontoma-focal-cemento-osseous-dysplasia-and-cemento-ossifying-fibroma-in-the-same-hemimandible-cbct-findings-of-an-unusual-case
#13
Andrea Borghesi, Ingrid Tonni, Stefania Pezzotti, Roberto Maroldi
Peripheral osteoma is the most common subtype of osteoma that arises most frequently in the craniofacial bones. It may occur at any age with a male-to-female ratio of 2:1. Peripheral osteoma may affect the mandible, particularly the ramus and the condyle. Compound odontoma is a subtype of odontoma that occurs in young subjects without gender predilection. It affects the maxilla more frequently than the mandible. Focal cemento-osseous dysplasia and cemento-ossifying fibroma are 2 benign fibro-osseous lesions with a female predominance that occur most commonly in the posterior region of the mandible...
December 2017: Radiology Case Reports
https://www.readbyqxmd.com/read/29393050/sphenoid-bone-fibrous-dysplasia-detected-incidentally-on-bone-scintigraphy-by-the-contribution-of-spect-ct-hybrid-imaging
#14
Hüseyin Şan, Kürşat Okuyucu, Ali Ozan Öner, Özdeş Emer, Alper Özgür Karaçalıoğlu
Fibrous dysplasia (FD) is a benign fibroosseous bone disorder. It has poliostotic and monostotic patterns. Monostotic FD is frequently asymptomatic and is usually discovered incidentally by radiologic imaging performed for other reasons. Bone scintigraphy is valuable for identifying disease extent. Craniofacial FD (CFD) is a form of the disease where lesions are limited to contiguous bones of the craniofacial skeleton. We presented a case with monostotic CFD who was detected incidentally on bone scintigraphy single-photon emission computed tomography/computerized tomography while being investigated for inflammatory arthropaties...
February 1, 2018: Molecular Imaging and Radionuclide Therapy
https://www.readbyqxmd.com/read/29389339/segmental-odontomaxillary-dysplasia-an-underrecognized-entity
#15
Molly Housley Smith, Donald M Cohen, Joseph Katz, Indraneel Bhattacharyya, Nadim M Islam
BACKGROUND AND OVERVIEW: Segmental odontomaxillary dysplasia (SOD) is a characteristic developmental abnormality that demonstrates posterior maxillary enlargement, dental abnormalities, altered bone trabeculation, and possible cutaneous findings. Only 62 cases have been reported in the English-language literature. CASE DESCRIPTION: The authors described 3 newly diagnosed cases of SOD, all found in the left posterior maxilla in adolescent female patients; they reviewed the literature to elucidate this rare entity...
February 2018: Journal of the American Dental Association
https://www.readbyqxmd.com/read/29383834/nonsense-mutations-in-fzd2-cause-autosomal-dominant-omodysplasia-robinow-syndrome-like-phenotypes
#16
Keisuke Nagasaki, Gen Nishimura, Toru Kikuchi, Hiromi Nyuzuki, Sunao Sasaki, Yohei Ogawa, Akihiko Saitoh
Omodysplasia-2 (OMOD2; OMIM%16475) is a rare autosomal dominant (AD) skeletal dysplasia characterized by shortened humeri, short first metacarpal, craniofacial dysmorphism (frontal bossing, depressed nasal bridge, bifid nasal tip, and long philtrum), and variable degrees of genitourinary anomalies. This clinical phenotype overlaps with that of AD type Robinow syndrome. Recently, a mutation in FZD2 encoding a Frizzled Class Receptor 2 has been identified in a family with AD omodysplasia (an affected girl and her affected mother)...
March 2018: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29347911/micrornas-associated-with-early-neural-crest-development-in-xenopus-laevis
#17
Nicole J Ward, Darrell Green, Janet Higgins, Tamas Dalmay, Andrea Münsterberg, Simon Moxon, Grant N Wheeler
BACKGROUND: The neural crest (NC) is a class of transitory stem cell-like cells unique to vertebrate embryos. NC cells arise within the dorsal neural tube where they undergo an epithelial to mesenchymal transition in order to migrate and differentiate throughout the developing embryo. The derivative cell types give rise to multiple tissues, including the craniofacial skeleton, peripheral nervous system and skin pigment cells. Several well-studied gene regulatory networks underpin NC development, which when disrupted can lead to various neurocristopathies such as craniofrontonasal dysplasia, DiGeorge syndrome and some forms of cancer...
January 18, 2018: BMC Genomics
https://www.readbyqxmd.com/read/29341424/fetal-ultrasonographic-findings-including-cerebral-hyperechogenicity-in-a-patient-with-non-lethal-form-of-raine-syndrome
#18
Kei Tamai, Katsuhiko Tada, Akihito Takeuchi, Makoto Nakamura, Hidenori Marunaka, Yosuke Washio, Hiroyuki Tanaka, Fuyuki Miya, Nobuhiko Okamoto, Misao Kageyama
Raine syndrome is a rare osteosclerotic bone dysplasia characterized by craniofacial anomalies and intracranial calcification. Most patients with Raine syndrome are of Arab ancestry and die during the neonatal period. We herein report a Japanese patient with non-lethal Raine syndrome who presented with characteristic cerebral hyperechogenicity and a hypoplastic nose by fetal ultrasonography. She was admitted to the NICU due to pyriform aperture stenosis. Craniofacial abnormalities, intracranial calcification, osteosclerosis, chondrodysplasia punctata, and a mutation of FAM20C was identified...
January 17, 2018: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/29299192/an-atypical-case-of-craniometaphyseal-dysplasia-case-report-and-surgical-treatment
#19
Giorgio Novelli, Emanuela Ardito, Fabio Mazzoleni, Alberto Bozzetti, Davide Sozzi
Introduction: Craniometaphyseal dysplasia is a rare hereditary bone disease presenting metaphyseal widening of the tubular bones, sclerosis of craniofacial bones and bony overgrowth of the facial and skull bones. Craniometaphyseal dysplasia occurs in an autosomal dominant (AD) and an autosomal recessive (AR) form. Case report: We present a 32-year-old patient arrived at our unit in May 2009. His main discomfort was a major limitation of the mouth opening, in the context of a craniofacial deformity...
April 2017: Annali di Stomatologia
https://www.readbyqxmd.com/read/29276151/bmal1-deficiency-contributes-to-mandibular-dysplasia-by-upregulating-mmp3
#20
Jiajia Zhao, Xin Zhou, Qingming Tang, Ran Yu, Shaoling Yu, Yanlin Long, Cen Cao, Jun Han, Anbing Shi, Jeremy J Mao, Xiong Chen, Lili Chen
Skeletal mandibular hypoplasia (SMH), one of the common types of craniofacial deformities, seriously affects appearance, chewing, pronunciation, and breathing. Moreover, SMH is prone to inducing obstructive sleep apnea syndrome. We found that brain and muscle ARNT-like 1 (BMAL1), the core component of the molecular circadian oscillator, was significantly decreased in mandibles of juvenile SMH patients. Accordingly, SMH was observed in circadian-rhythm-disrupted or BMAL1-deficient mice. RNA sequencing and protein chip analyses suggested that matrix metallopeptidase 3 (MMP3) is the potential target of BMAL1...
January 9, 2018: Stem Cell Reports
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