Fibrous dysplasia is a common benign skeletal lesion that may involve one bone monostotic or multiple bones polyostotic and occurs throughout the skeleton with a predilection for the long bones, ribs, and craniofacial bones. The monostotic form is more common than the polyostotic form. Useful for identify multiple lesionspolyostotic form fig. Fibrous dysplasia may arise as a single, discrete monostotic lesion or can occur with a more widespread distribution with multiple lesions that affect many bones oligo or. Learn vocabulary, terms, and more with flashcards, games, and other study tools. First named by lichtenstein in 1938, fibrous dysplasia fd is a noninherited, skeletal developmental abnormality, where normal bone is replaced by fibrous tissue and poorly formed area of immature bone. Because many patients are asymptomatic, the true incidence of this disorder is unknown. Detailed explanations for these recommendations may be found in the chapters on fdmas published in orphanet. Patients may exhibit involvement of one bone monostotic fd. Polyostotic fibrous dysplasia this is a case report of polyostotic fibrous dysplasia fd in an 18yearold hispanic man referred to the authors institution for. Eight patients who had polyostotic fibrous dysplasia were followed up for more than 10 years. Fibrous dysplasia fd is a nonmalignant condition caused by.
This leads to the proliferation of immature osteogenic cells and replacement of the normal bone marrow with a fibroosseous tissue. Dec 10, 2018 fibrous dysplasia accounts for about 5% of all benign bone tumors. As a result, most complications result from fracture, deformity, functional impairment, and pain. Fibrous dysplasia of maxilla mccune albright syndrome jameela 12. Abnormalities may involve a single bone monostotic form. In the polyostotic form, patients are usually diagnosed by 10 years of age. Polyostotic medical definition merriamwebster medical. Hyperparathyroidism is rare in children, seldom runs such a slow course, and is accompanied by alterations of the serum calcium and phosphorus. Fibrous dysplasia nord national organization for rare. The disease appears to result from a genetic mutation that leads to the overproduction of fibrous tissue there are two types of fibrous. Fibrous dysplasia is a disease that causes growths or lesions in one or more bones of the human body. Clinical guidelines for the management of craniofacial. It can be monostotic, involving a single bone, or polyostotic, involving two or more bones. Axial ct reconstruction of the shoulder illustrates a lytic lesion of the right scapula consistent with fibrous dysplasia.
In pfd, fibrouslike tissues with immature osteogenesis replace the normal bone. Polyostotic fibrous dysplasia article about polyostotic. A case of fibrous dysplasia of polyostotic variety involving cervical spines, both sides of occipital bone besides mandible, maxilla, parietal, humerus, ulna, and radius of the left side is presented and briefly discussed. Monostotic disease persons asymptomatic as old as 2030 years. Till date he has suffered multiple fractures of both the hands and legs 8 times. Albright syndrome, which usually corriprises polyostotic fibrous dysplasia, cutaneous pigmentation cafe au lait spots, and hyperfunction of one or more of the endocrine glands. Fibrous dysplasia support groups online dailystrength. What is fibrous dysplasia affecting multiple bones. More recent studies report that polyostotic fibrous dysplasia and cafeaulait macules are invariably present, while monostotic lesions are less common 3.
Imaging findings of fibrous dysplasia with histopathologic. It may involve one bone monostotic or multiple bones polyostotic. Volume 5, issue 2, marchapril 2016 clinical cancer. Polyostotic fibrous dysplasia with this type it affects several bones and is often associated with mccunealbright syndrome, which is a genetic disorder that affects not only the bones but also many endocrine hormone producing tissues and your skin. Histologically proven the case reported that she had endocrinal abnormalities in form of disturbed menstrual cycle. Treatment guidelines for fdmas fibrous dysplasia foundation. Mccunealbright syndrome includes polyostotic fibrous dysplasia as part of its presentation. Polyostotic fibrous dysplasia of bone sciencedirect. Fd is a bone developmental anomaly characterized by replacement of normal bone and marrow bone by fibrous tissue. For example, mccunealbright syndrome is characterized by polyostotic fibrous dysplasia that occurs with hormonal abnormalities and areas of darkened skin cafe au lait spots. Primarily affecting adolescents and young adults, it accounts for 7% of benign bone tumors. Nov 01, 2014 polyostotic fibrous dysplasia this is a case report of polyostotic fibrous dysplasia fd in an 18yearold hispanic man referred to the authors institution for further evaluation of abnormal. The affected bone becomes enlarged, brittle and warped. Fibrous dysplasia fd is a benign bone disorder, in which normal bone structure is replaced by fibrous connective tissue.
Polyostotic fibrous dysplasia synonyms, polyostotic fibrous. As children grow, affected bone may become misshapen dysplastic. Polyostotic fibrous dysplasia with this type it affects several bones and is often associated with mccunealbright syndrome, which is a. We report a case of craniofacial polyostotic fibrous dysplasia in a 16yearold female. Here, we are discussing two cases with monostotic fibrous dysplasia of maxilla with emphasis on. Disease occurs along a broad clinical spectrum ranging from asymptomatic, incidental lesions, to severe. Any bone may be affected, the long bone, skull and. What are synonyms for polyostotic fibrous dysplasia. They are somewhat technical and it may be useful to discuss them with your doctor. Mccunealbright syndrome presents with multiple unilateral bone lesions.
Two of 3 proximal femoral lesions which were treated before puberty by either curettage and bone grafting or by osteotomy, developed progressive deformity during the growth period. Last month, he again suffered multiple fractures in the left leg. The replacement of normal bone in fibrous dysplasia can lead to pain, misshapen bones, and fracture, especially when it occurs in the long bones. Fibrous dysplasia is a condition that causes abnormal growth or swelling of bone. In polyostotic fibrous dysplasia, on the other hand, there are exten sive bone lesions in which overgrowth of bone, as well as bone destruction, is a prominent feature. Polyostotic fibrous dysplasia consist mainly of inter ference with skeletal development. Fibrous dysplasia is a condition leading to abnormal differentiation of osteoblasts. Monostotic fibrous dysplasia with this type only one bone is affected and accounts for approximately seventy percent of all cases of fibrous dysplasia. In general, fd presents in three forms monostotic, polyostotic, and polyostotic with endocrinopathies. Fibrous dysplasia may be monostotic or polyostotic, with or without associated endocrine disturbances. Introduction fibrous dysplasias fd are a group of nonhereditary benign pathologies in which immature bone and fibrous stroma replace normal medullary bone as a result of abnormal differentiation of osteoblasts characterized by solitary monostotic or. Fibrous dysplasia can present in one bone monostotic or multiple bones polyostotic and can be associated with other conditions table i.
Fibrous dysplasia overview nih osteoporosis and related. Fibrous dysplasia genetic and rare diseases information. In view of this i request you to kindly help this problem with some remedial solution. Fibrous dysplasia treatment, symptoms, causes, pictures. Fibrous dysplasia may arise as a single, discrete monostotic lesion or can occur with a more widespread distribution with multiple lesions that affect many bones oligo or polyostotic. Commonly found in persons aged 315yrs polyostotic disease persons asymptomatic before 10 years. Polyostotic fibrous dysplasia pfd is a nonhereditary congenital and benign disease of the bone. My friend has lost all hope due to the repeated fractures of his son. Fibrous dysplasia is a benign fibroosseous lesion characterised by the replacement of normal bone by excessive proliferation of cellular fibrous connective tissue which is slowly replaced by bone, osteoid, or cementumlike material. Fibrous dysplasia can occur in any part of the skeleton but the bones of the skull and face, thigh, shin, ribs, upper arm and pelvis are most commonly affected. Fibrous dysplasia, rare congenital developmental disorder beginning in childhood and characterized by replacement of solid calcified bone with fibrous tissue, often only on one side of the body and primarily in the long bones and pelvis.
Fd is a rare, nonmalignant condition in which normal bone and marrow are replaced by fibrous tissue and randomly distributed woven bone, usually with pain, bony deformity, and pathologic fractures. Polyostotic fibrous dysplasia is a form of fibrous dysplasia affecting more than one bone. The most common sites are the bones in the skull and face, the long bones in the arms and legs, the pelvis, and the ribs. Primarily affecting adolescents and young adults, it. Fibrous dysplasia may occur as part of a larger disorder. Malignant sarcomatous transformation of fibrous dysplasia. Mccunealbright syndrome is a form of polyostotic fibrous dysplasia. Clinical guidelines for the management of craniofacial fibrous. Fibrous dysplasia polyostotic free download as powerpoint presentation. Fibrous dysplasia, polyostotic, monostotic, bone grafting, bisphosphonates. Fibrous dysplasia has a varied radiographic appearance. This means that polyostotic fibrous dysplasia, or a subtype of polyostotic fibrous dysplasia, affects less than 200,000 people in the us population.
Pdf an unusual case of fibrous dysplasia involving right craniofacial region in a female is reported. There are two forms of this medical condition which are. Ap plain xray of fibrous dysplasia of the right shoulder showing an expanded lytic lesion involving the spine of the scapula. The patient reported a history of similar but milder symptoms 2 years prior, and subsequent computed tomography ct scan of the head was reported as fibrous dysplasia fd of the right sphenoid bone. Fibrous dysplasia is a skeletal disorder in which boneforming cells fail to mature and produce too much fibrous, or connective, tissue. Fibrous dysplasia is fibrous replacement of bone tissue. Fibrous dysplasia is a disorder where normal bone and marrow is replaced with fibrous tissue, resulting in formation of bone that is weak and prone to expansion. Recommendations for endocrine followup of patientsread more. The purpose of this study was to evaluate the longterm survival of bonegrafting procedures in subjects with polyostotic. Fibrous dysplasia fd is a nonneoplastic tumorlike congenital process, manifested as a localized defect in osteoblastic differentiation and maturation, with the replacement of normal bone with large fibrous stroma and islands of immature woven bone. Polyostotic fibrous dysplasia has its onset mainly in children younger than 10 years of age and the lesions grow with the child and stabilize after puberty. Areas of healthy bone are replaced with this fibrous tissue.
It causes bone pain, deformities, and pathological fractures. Nov 16, 2011 fibrous dysplasia fd is a sporadic benign skeletal disorder that can affect one bone monostotic form or multiple bones polyostotic bone. Fibrous dysplasia of the jaws wiley online library. Synonyms for polyostotic fibrous dysplasia in free thesaurus. In view of this i request you to kindly help this problem with some remedial. Fibrous dysplasia is categorized as either monostotic or polyostotic and may occur as a component of mccunealbright syndrome or the rare mazabraud syndrome. The ratio of occurrence of polyostotic to monostotic fibrous dysplasia is 3. Pfd is associated with bone pain and fractures due to bone fragility. Bone affected by this disorder is replaced by abnormal scarlike fibrous connective tissue. Fibrous dysplasia is a skeletal disorder that is characterized by the replacement of normal bone with fibrous bone tissue. Polyostotic fibrous dysplasia is listed as a rare disease by the office of rare diseases ord of the national institutes of health nih. Polyostotic fibrous dysplasia pfd is caused by somatic activating mutations in the gnas gene in the skeletal stem cells. It is very rare for areas of fibrous dysplasia to become malignant or cancerous.
The following are set of recommendations for the diagnosis, treatment, and followup of patients with fd andor mas. A genetic disorder that is characterized by polyostotic fibrous dysplasia along with skin pigmentation and hormonal problems, with premature sexual development. A genetic disorder that is characterized by polyostotic fibrous dysplasia along with skin pigmentation and hormonal problems, with premature sexual. Fibrous dysplasia is a developmental disorder of bone that can present in a monostotic or polyostotic form. Aug 04, 2016 fibrous dysplasia of maxilla mccune albright syndrome jameela 12. Polyostotic fibrous dysplasia of maxillofacial region. Albright syndrome and polyostotic fibrous dysplasia. Clinical examination revealed cranial nerve iii palsy with ptosis of the right eye and diplopia with gaze. This pictorial essay provides various imaging findings of fibrous dysplasia and examples of the underlying histopathology, gross intraoperative findings, and clinical characteristics.
The etiology of fibrous dysplasia has been linked to an activating mutation in the gene that encodes the. One of my friends son aged 14 years is suffering from fibrous dysplasia since the age of 6. Features consistent of polyostotic fibrous dysplasia. A disorder that features the replacement of multiple areas of bone by fibrous tissue, which may cause fractures and deformity of the legs, arms, and skull. Gender prevalence of monostotic and polyostotic fibrous dysplasia is equal. The osseous structures affected by fibrous dysplasia are weaker than normal bone is susceptible to pathologic fracture. Mccune albright sendromu icin kisa literatur ozeti. The objective of this study was to report our experience in the management of the monostotic fd of the ribs. Fibrous dysplasia involves the maxilla almost twice as often as the mandible and occurs more frequently in the posterior aspect.
In addition to fibrous dysplasia this syndrome may also lead to early puberty and skin. Disease occurs along a broad clinical spectrum ranging from asymptomatic, incidental. Jun 30, 2017 fibrous dysplasia is a skeletal disorder that is characterized by the replacement of normal bone with fibrous bone tissue. In 1938, lichtenstein first coined the term fibrous dysplasia fd. Fibrous dysplasia a term first suggested by lichtenstein and jaffe in 1942 of bone is a nonheritable disease in which abnormal tissue develops in place of normal bone. It involves any of the bones as single lesion monostotic or in multiple bone lesions polyostotic or all of the skeletal system panostotic. Orthopedic surgery for fibrous dysplasia clinical presentation. Pdf craniofacial polyostotic fibrous dysplasia researchgate. This abnormal fibrous tissue weakens the bone, making it abnormally fragile and prone to fracture. Polyostotic fibrous dysplasia mimicking osseous metastases cureus. Polyostotic fibrous dysplasia definition of polyostotic. Fibrous dysplasia fd is a benign intramedullary fibroosseous lesion.
Fibrous dysplasia is a disorder where bone is replaced by fibrous tissue, leading to weak bones, uneven growth, and deformity. Feb 08, 2017 in the polyostotic form, patients are usually diagnosed by 10 years of age. Polyostotic fibrous dysplasia on mri radiology case. Fibrous dysplasia fd is a sporadic benign skeletal disorder that can affect one. The lesions can result in deformity of the bones and fractures. Polyostotic fibrous dysplasia synonyms, polyostotic.
These lesions are tumorlike growths that consist of replacement of the medullary bone with fibrous tissue, causing the expansion and weakening of the areas of bone involved. Polyostotic fibrous dysplasia mccunealbright syndrome. It may involve one bone or multiple bones polyostotic. A genetic disorder that is characterized by polyostotic fibrous dysplasia along with skin pigmentation and hormonal problems, with premature sexual development, is known as. The replacement of normal bone in fibrous dysplasia can lead to pain, misshapen bones, and fracture, especially when it occurs in the long bones arms and legs. On examination she had few cafe au lait spots over her thighs. The most frequent sites of involve ment are the diaphyses and metaphyses of the long bones and the adjacent part of the shoulder and the pelvic bones.
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