Pathological fracture of the femur in a patient with Paget s disease of bone: a case report

Vol. 57 No. 2 Suppl., 2016
This supplement was not sponsored by Outside Organizations.

ROMANIAN JOURNAL of MORPHOLOGY and EMBRYOLOGY

Pompiliu Horatiu Petrescu, Dragos Andrei Izvernariu, Catalina Iancu, Gabriel Ovidiu Dinu, Marcel-Mihai Berceanu-Vaduva, Dan Crisan, Mihaela Iacob, Venera Margareta Bucur, Ion Calin Rautia, Ion Radu Prejbeanu, Sorin Dema, Ciprian Constantin Duta

Paget s disease of bone is a benign disease characterized by exaggerated remodeling of the bone matrix after osteoclast-mediated bone destruction. Its etiology is still unknown, despite the fact that it was discovered and described in 1877, but genetic factors and environmental triggers were shown to play their part in the pathogenesis of the disease. The main clinical presentations of the disease are related to bone pain and deformities. Radiological diagnosis is the main detection tool, though many monostotic Paget s disease cases may remain undiagnosed. We present the case of an 81-year-old male patient admitted to the Clinic of Orthopedics, Emergency County Hospital, Timisoara, Romania, with intense pain and deformity of the upper left thigh. Radiological examination performed shows a complete fracture of the upper third diaphysis of the left femur with suggestive signs for Paget s disease of the bone therefore a biopsy was taken and the patient was treated by surgical realignment with favorable evolution. He was discharged 13 days after surgery. The biopsy of the bone revealed extensive bone remodeling with numerous osteoclasts and extensive bone matrix deposition, unevenly stained and unevenly mineralized and reverse cement lines, which are consistent with the diagnosis of Paget s disease of the bone. Histomorphometric analysis show intense matrix deposition with a highly active remodeling process. Computed tomography (CT) scans were performed three years later and show the extension of the disease into the lower half of the left femur.

Corresponding author: Pompiliu Horatiu Petrescu, Assistant Professor, MD, PhD; e-mail: lalusha87@yahoo.com

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ROMANIAN JOURNAL of MORPHOLOGY and EMBRYOLOGY

Corneliu Toader, Miorita Toader, Alina Stoica, Gabriel Pop, Alina Oprea, Anca Simona Constantin, Liviu Niculescu, Iolanda Cristina Vivisenco, Mircea Stelian Draghici, Andrei Osman, Carmen Aurelia Mogoanta

The commonest cause of head and neck malignancy in pediatric patients is lymphoma. A particular case is the tonsillar lymphoma. Even though unilateral tonsillar enlargement represents an ominous sign for neoplasia, clinical manifestations vary and are non-specific. Therefore, a delayed diagnosis is performed which compromises optimal therapy and hinders the prognosis. We present the case of a 5-year-old boy who was initially diagnosed with obstructive sleep apnea, without reported systemic complaints. Asymmetric tonsillar hypertrophy created the premises for performing a tonsillectomy to rule out malignancy. The pathological evaluation of the resected tonsils revealed a malignant non-Hodgkin s lymphoma, with immunophenotypic features consistent with sporadic type Burkitt lymphoma. The aim of this paper is to emphasize the importance of the histopathological examination and of the immunohistochemistry testing for the prompt and accurate diagnosis of all asymmetric tonsillar hypertrophy in children undergoing tonsillectomy. Furthermore, immunohistochemical diagnosis is vital for establishing a personalized multi-agent chemotherapy regimen, which dramatically improves the survival rate. We recommend histopathological evaluation in all children with asymmetric tonsillar hypertrophy undergoing tonsillectomy for various reasons. Needless to say, it is better to be cautious and exclude the presence of tonsillar lymphoma, than to confront with the severe consequences of misdiagnosis.

Corresponding author: Miorita Toader, MD, PhD; e-mail: toadermiorita@yahoo.com

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