MedGen

Legg-Calve-Perthes disease (LCPD) is characterized by loss of circulation to the femoral head, resulting in avascular necrosis in a growing child. Clinical pictures of the disease vary, depending on the phase of disease progression through ischemia, revascularization, fracture and collapse, and repair and remodeling of the bone. The disease occurs more frequently in boys, and most patients tend to be shorter than their peers. Both familial and isolated cases of LCPD have been reported (summary by Chen et al., 2004). [from OMIM]

An abnormal flattening of the proximal epiphysis of the femur. [from HPO]

A cone-shaped deformity of the proximal epiphysis of the femur. [from HPO]

Underdevelopment of the proximal epiphysis of the femur. [from HPO]

Schimke immunoosseous dysplasia (SIOD) is characterized by spondyloepiphyseal dysplasia (SED) resulting in short stature, nephropathy, and T-cell deficiency. Radiographic manifestations of SED include ovoid and mildly flattened vertebral bodies, small ilia with shallow dysplastic acetabular fossae, and small deformed capital femoral epiphyses. Nearly all affected individuals have progressive steroid-resistant nephropathy, usually developing within five years of the diagnosis of growth failure and terminating with end-stage renal disease. The majority of tested individuals have T-cell deficiency and an associated risk for opportunistic infection, a common cause of death. SIOD involves a spectrum that ranges from an infantile or severe early-onset form with a greater risk of death during childhood to a juvenile or milder later-onset form with likely survival into adulthood if renal disease is appropriately treated. [from GeneReviews]

Lack of ossification of the proximal epiphysis of the femur. [from HPO]

Dyggve-Melchior-Clausen disease (DMC) is an autosomal recessive disorder characterized by progressive spondyloepimetaphyseal dysplasia and impaired intellectual development. Short-trunk dwarfism and microcephaly are present, and specific radiologic appearances most likely reflect abnormalities of the growth plates, including platyspondyly with notched end plates, metaphyseal irregularities, laterally displaced capital femoral epiphyses, and small iliac wings with lacy iliac crests (summary by El Ghouzzi et al., 2003). [from OMIM]

Slipped capital femoral epiphysis is defined as a posterior and inferior slippage of the proximal epiphysis of the femur onto the metaphysis (femoral neck), occurring through the physeal plate during the early adolescent growth spurt. [from HPO]

Miura-type epiphyseal chondrodysplasia (ECDM) is an overgrowth syndrome characterized by tall stature, arachnodactyly of the hands, macrodactyly of the great toes, scoliosis, coxa valga, and slipped capital femoral epiphysis (Miura et al., 2014). Multiple extra epiphyses are present in the hands (Boudin et al., 2018). Mutation in the NPR3 gene (108962) results in Boudin-Mortier syndrome (BOMOS; 619543), a similar phenotype of tall stature, arachnodactyly, elongated great toes, and multiple extra epiphyses. [from OMIM]

Irregular surface of the normally relatively smooth capital femoral epiphysis. [from HPO]

Smith-McCort dysplasia is a rare autosomal recessive osteochondrodysplasia characterized by short trunk dwarfism with a barrel-shaped chest, rhizomelic limb shortening, and specific radiologic features including marked platyspondyly with double-humped end-plates, kyphoscoliosis, metaphyseal irregularities, laterally displaced capital femoral epiphyses, and small pelvis with a lace-like appearance of iliac crests. These clinical and radiologic features are also common to Dyggve-Melchior-Clausen syndrome (DMC; 223800), which is distinguished from SMC by the additional feature of mental retardation (summary by Dupuis et al., 2013). For a discussion of genetic heterogeneity of Smith-McCort dysplasia, see SMC1 (607326). [from OMIM]

Abnormally wide morphology of the proximal epiphysis of the femur. [from HPO]

Absence or underdevelopment of the proximal epiphysis of the femur. [from HPO]

Developmental acceleration of ossification of the proximal epiphysis of the femur. [from HPO]

Upington disease has characteristics of Perthes-like pelvic anomalies (premature closure of the capital femoral epiphyses and widened femoral necks with flattened femoral heads), enchondromata and ecchondromata. It has been described in siblings from three generations of one family. Transmission is autosomal dominant. [from SNOMEDCT_US]

A rare primary bone dysplasia with characteristics of small, flat epiphyses (especially the capital femoral epiphyses), rhizomelic shortening of limbs, cleft of secondary palate, micrognathia, mild joint contractures and facial dysmorphism (including mildly upward-slanting palpebral fissures, hypertelorism, broad nasal tip). Additionally reported features include scoliosis, genu valgum, mild pectus excavatum, platyspondyly, dislocated radial heads, brachydactyly, hypoplastic fibulae and talipes equinovarus. [from SNOMEDCT_US]

Anauxetic dysplasia (ANXD1) is a form of spondylometaepiphyseal dysplasia characterized by the prenatal onset of extreme short stature, an adult height of less than 85 cm, hypodontia, and mild mental retardation. Major radiographic characteristics are late-maturing ovoid vertebral bodies with concave dorsal surfaces in the lumbar region; small capital femoral epiphyses; hypoplastic femoral necks; hypoplastic iliac bodies and shallow acetabulae; irregular metaphyseal mineralization and demarcation of the long tubular bones; short first and fifth metacarpals with widened shafts; very short and broad phalanges with small, late-ossifying epiphyses and bullet-shaped middle phalanges; and midface hypoplasia. The number of chondrocytes is severely reduced in the resting and proliferating cartilage, with diminished columnization of the hypertrophic zone (summary by Thiel et al., 2005). Mutations in RMRP also cause 2 milder types of short stature with susceptibility to cancer, cartilage-hair hypoplasia (CHH; 250250) and metaphyseal dysplasia without hypotrichosis (250460). Genetic Heterogeneity of Anauxetic Dysplasia Anauxetic dysplasia-2 (ANXD2; 617396) is caused by mutation in the POP1 gene (602486) on chromosome 8q22. ANXD3 (618853) is caused by mutation in the NEPRO gene (617089) on chromosome 3q13. [from OMIM]

A mild localised form of skeletal dysplasia characterised by delayed, irregular ossification of femoral capital epiphysis. Clinical manifestations may include a waddling gait, genu valgum, hip pain and restricted movement, although these manifestations are usually transient and the majority of patients are asymptomatic. [from SNOMEDCT_US]

An abnormal enlargement of the proximal epiphysis of the femur. [from HPO]

Panner's disease is an osteochondrosis of the capitellum of the humerus, characterised by involvement of the dominant upper limb and onset before the age of 10 years. It results from lateral compression injuries of the elbow typically occurring in children practising sports such as baseball and throw. It should be distinguished from osteochondritis dissecans of the capitellum (see this term), occurring later, in adolescents. Management is symptomatic and consists in reducing the activities of the affected elbow for a prolonged period of time. Prognosis is good. [from ORDO]