Dysplasia epiphysealis hemimelica: a histological comparative study with osteochondromas

Dysplasia Epiphysealis Hemimelica Presenting as Multiple Loose Bodies: A Case Report

CASE

A 11-year-old boy with no medical history presented with a protective limp and worsening mechanical pain in his left knee. No recent traumatic or infectious history was reported. Radiographs and ultrasonography showed multiple intra-articular loose bodies with osteocartilaginous signal. Dysplasia epiphysealis hemimelica (DEH) was confirmed by magnetic resonance imaging (MRI) and computed tomography (CT) scan. This is the first report that describes the presence of loose bodies in a knee without previous surgery as a possible case of DEH.

CONCLUSION

We emphasize the use of CT scan and MRI before any surgical procedure when intra-articular loose bodies are unexpectedly discovered.

Dysplasia Epiphysealis Hemimelica (Trevor's Disease) in Children, Two New Cases: Diagnosis, Treatment, and Literature Review

Dysplasia epiphysealis hemimelica (DEH), also known as Trevor’s disease, is a rare nonhereditary skeletal disorder affecting one side of the epiphyses or the epiphyses-equivalents. It is often misdiagnosed for traumatic injuries, infections, or other tumors because of the nonspecific clinical features. The diagnosis is mostly based on radiographic involvement of one half of the epiphysis displaying an overgrowth; it is hard to distinguish between DEH and osteochondroma on the gross hystopathological exam. There are few immunohistochemical markers, as well as genetic tests, for EXT1 and EXT2 gene expression that can reveal a more accurate diagnosis. No evidence of malignant changes has been reported and no hereditary transmission or environmental factor has been incriminated as an etiological factor. The natural history of the disease is continuous growth of the lesions until skeletal maturity. Without treatment, the joint might suffer degenerative modification, and the patient can develop early onset osteoarthritis. In the present paper, we report two new cases of DEH of the ankle. The aim of this paper is to consider Trevor’s disease when encountering tumoral masses in the epiphyses of pediatric patients and to present our treatment approach and results.

Dysplasia epiphysealis hemimelica of the radial head: a rare case report

Background

Dysplasia epiphysealis hemimelica (DEH) is a rare benign overgrowth generally affecting the epiphyses and short bones of the lower limbs. DEH in the elbow joint is extremely rare, and to date, only three cases of DEH have been reported in the radial head.

Case presentation

In this study, we report a case of DEH located in the radial head of the right elbow of a 10-year-old boy, which was presented with elbow pain and limited range of motion. In clinical examination, an asymmetrical enlargement was observed over the elbow. The lesion was resected surgically, and the patient’s symptoms resolved afterward. The histologic analysis of the lesion confirmed the diagnosis of DEH.

Conclusion

This report highlights the role of DEH in the differential diagnosis of elbow pathologies, particularly its differentiation from osteochondroma.

Knee orthopedic problems in newborns and infancy: a review

PURPOSE OF REVIEW

We present the reader with insight on the most common disorders of the knee in newborns and infants. Knee issues in this population may confuse the first contact physicians due to certain peculiarities of the immature immune system, small size and underdevelopment of joint anatomy. Data presented here are recent and significant, and something to bear in mind when caring for children of this age.

RECENT FINDINGS

With the advent of new diagnostic methods, a shift in the causative agent of pediatric knee infections has been noted. Minimally invasive methods such as arthrocentesis and arthroscopy are successfully employed in treatment of knee problems in newborns and infants. A trial of conservative therapy in congenital patellar instability can give good results, and obviate the need for surgery in some cases. Various syndromes that affect the knee have specific characteristics that need to be recognized early to avoid problems in the future.

SUMMARY

Although rare, knee problems in infants can and do occur. Their cause varies significantly and good outcomes require a multidisciplinary approach. Early diagnosis, referral and initiation of treatment protocols can significantly influence the fate of the joint and with it the patients' functional status for life.

Dysplasia Epiphysealis Hemimelica Can Be Controlled by Growth Modulation: A Case Report

CASE

Dysplasia epiphysealis hemimelica (DEH), or Trevor disease, is an abnormal nonmalignant overgrowth of the epiphysis on one side of the body, often confined to one half of a joint of a limb. There is no known etiology or treatment for it. We are reporting the case of a 4.5-year-old boy with osteochondral-like growths on one side of the knee and ankle that could not be controlled by repeated excision. He underwent epiphyseal stapling at the knee and ankle. The regrowth was halted in both locations and has lasted for over 8 years.

CONCLUSION

Modulation of physeal growth by stapling can halt the uncontrollable overgrowth of lesions in DEH.

Dysplasia epiphysealis hemimelica combined with contralateral accessory scaphoid bone: A case report and literature review

RATIONALE

Dysplasia epiphysealis hemimelica (DEH), also known as Trevor disease, is a rare, developmental bone disorder of childhood.

PATIENT CONCERNS

A 9-year-old girl was admitted due to pain in front of the medial malleolus of her right foot after a long walk or distance movement, in which the pain could be relieved after rest, while it was repeated and lasted for several months.

DIAGNOSIS

Dysplasia epiphysealis hemimelica INTERVENTIONS:: The patient underwent an open resection surgery. After operation, the pain was totally relieved. Postoperative pathological diagnosis showed DEH.

OUTCOMES

At the 6-month follow-up, pain and claudication symptoms fully disappeared, and range of motion of the right foot returned to normal level.

CONCLUSIONS

Dysplasia epiphysealis hemimelica is an uncommon disease which can cause pain of foot in children.

LESSONS

When the pediatric orthopedic surgeon treated the children suffered with foot pain should be aware of this rare disease, especially accessory scaphoid bone was found in another foot.

Dysplasia Epiphysealis Hemimelica/Trevor Disease: Report of a Lesion Solely Involving the Lunate Bone: A Case Report

CASE

We describe the case of a dysplasia epiphysealis hemimelica (DEH) lesion affecting uniquely the lunate bone in a 16-year-old boy causing pain, stiffness, and decreased range of motion. Surgical excision was performed, leading to resolution of primary symptoms with residual limitations in terminal wrist extension.

CONCLUSIONS

From our review of the literature, we believe this case to be the first report of a DEH lesion affecting solely the lunate bone. Although conservative and surgical management have both been described with DEH cases, we report a positive outcome following the excision of a symptomatic lesion.

Asymptomatic Dysplasia Epiphysealis Hemimelica of the Shoulder in a Skeletally Mature Patient with Normal Function

Dysplasia epiphysealis hemimelica is a rare osteocartilaginous overgrowth syndrome of bone epiphysis, mostly encountered in the lower limbs of immature skeleton patients. We report a case of proximal humerus presentation in an adult male, with neither articular involvement nor clinical dysfunction. This case highlights the importance of stratification into intra- and extra-articular lesions, as this distinction ultimately influences both symptoms and treatment outcome. In addition, the case highlights the importance of specific imaging modalities, such as CT and MR images, which provide excellent anatomic location of the lesion, adequate extension of cartilaginous components, exact status of articular cartilage, and accurate assessment of neighboring structures, such as vessels, nerves, ligaments, tendons, and muscles. The imaging features are described, the relevant literature is reviewed, and salient features are discussed.