1/44. Cystic fibrous dysplasia mimicking giant cell tumor: MRI appearance.We report the case of a 43-year-old man who presented with an osteolytic and expansive lesion in the left distal femur mimicking a giant cell tumor. Magnetic resonance imaging (MRI) showed that most of the lesion was cystic, and histological examination revealed fibrous dysplasia with marked cystic degeneration. Radiographic findings of cystic fibrous dysplasia in the end of a long bone may be similar to those of a giant cell tumor, and a biopsy is essential for the final diagnosis.- - - - - - - - - - ranking = 1keywords = giant (Clic here for more details about this article) |
2/44. A solitary bone cyst in the spinous process of the cervical spine: a case report.STUDY DESIGN: A case report. OBJECTIVES: To illustrate a rare case of histologically confirmed solitary bone cyst involving the spinous process of C7. SUMMARY OF BACKGROUND DATA: A solitary bone cyst involving the spine is very unusual. Although four cases of a solitary bone cyst in the spine have been reported in the literature, the current authors have been able to find only one case of solitary bone cyst in the spinous process. All four patients reported in the literature were over 30 years of age. The patient in the current case was a 13-year-old girl with no history of trauma. methods: Radiographs and a computed tomography scan of the cervical spine were performed before the operation, as was a histologic examination to make a diagnosis of the lesion. RESULTS: The intraoperative findings from examination of the stagnant fluid within the lesion and the histologic examination indicated the diagnosis of a solitary bone cyst. CONCLUSIONS: A solitary bone cyst in the spine is rare, especially in the young. An osteolytic lesion in the spinous process of the spine tends to be diagnosed as an osteoblastoma or as a giant cell tumor of the bone. A solitary bone cyst of the spine, although rare, must be considered as a differential diagnosis.- - - - - - - - - - ranking = 0.16666666666667keywords = giant (Clic here for more details about this article) |
3/44. Giant distal humeral geode.We describe the imaging features of a giant geode of the distal humerus in a patient with rheumatoid arthritis, which presented initially as a pathological fracture. The value of magnetic resonance imaging in establishing this diagnosis is emphasized.- - - - - - - - - - ranking = 0.16666666666667keywords = giant (Clic here for more details about this article) |
4/44. Giant intradiploic epidermoid cysts of the skull. A report of eight cases.Giant intradiploic epidermoid cyst of the skull is a rare tumour. Only a small number of cases have been reported. Over a 16-year period, we treated eight cases of giant intradiploic epidermoid cyst of the skull. All cases were between 19 and 45 years of age, except one aged of 61 years. Five cases presented with local swellings, three patients came with infection and one had an extradural abscess. All the patients were operated upon after adequate preoperative care. patients with infection required appropriate antibiotics. Total or near total excision was carried out in all. One patient developed postoperative infection. So for those have been no recurrences. This appears to be the largest series of giant intradiploic epidermoid cyst of the skull so far reported.- - - - - - - - - - ranking = 0.33333333333333keywords = giant (Clic here for more details about this article) |
5/44. Unicameral bone cyst of a cervical vertebral body and lateral mass with associated pathological fracture in a child. Case report and review of the literature.The authors present the case of a 10-year-old girl with a history of cervical trauma in whom a cystic lesion was found to involve all three columns of C-7 with evidence of pathological fracture. Computerized tomography scanning revealed a lytic lesion with sclerotic margins involving the left vertebral body, pedicle, lateral mass, and lamina of C-7 with an associated pathological compression fracture. magnetic resonance imaging demonstrated mixed signal on both T1- and T2-weighted sequences, with cystic and enhancing solid portions. magnetic resonance angiography demonstrated anterior displacement of the left vertebral artery at C-7. The patient underwent C-7 subtotal corpectomy and posterior resection of the tumor mass; anterior and posterior fusion were performed in which instrumentation was placed. Histological examination disclosed cystic areas lined by fibromembranous tissue with calcification and osteoid deposits consistent with unicameral bone cyst. Of the four previously reported cases of unicameral bone cysts in the cervical spine, none involved all three columns simultaneously or was associated with pathological fracture. The most common differential diagnostic considerations for cystic lesions in the spine are aneurysmal bone cyst, osteoblastoma, or giant cell tumor of bone. Unicameral bone cyst, in this location, although rare, must be considered in the differential diagnosis and may require resection and spinal reconstruction.- - - - - - - - - - ranking = 0.16666666666667keywords = giant (Clic here for more details about this article) |
6/44. Giant intraosseous cyst-like lesions in rheumatoid arthritis report of a case.The term "intraosseous synovial cyst" is used to designate both the epiphyseal cyst-like lesions seen in patients with rheumatoid arthritis (RA) and mucoid cysts, which occur in a different setting. We report the case of a patient in whom a 4-cm cyst-like lesion developed in the left tibia 18 years after onset of RA and 6 years after osmic acid synovectomy of the left knee. Positive contrast arthrography and magnetic resonance imaging visualized a communication between the lesion and the joint space. Preexisting bone and joint lesions and increased intraarticular pressure play a major role in the genesis of cyst-like lesions in RA. In our patient, the osmic acid synovectomy may have contributed to the development of the lesion. "synovial cyst" is a misnomer for these giant lesions, which are geodes rather than cysts. Despite their low incidence, these lesions deserve attention because they raise diagnostic and therapeutic problems.- - - - - - - - - - ranking = 0.16666666666667keywords = giant (Clic here for more details about this article) |
7/44. Rotational acetabular osteotomy for acetabular dysplasia of the hip with a giant acetabular bone cyst: a case report.In acetabular dysplasia of the hip joint accompanied by a giant acetabular bone cyst, rotational acetabular osteotomy may cause serious complications, such as bone necrosis after surgery or fracture of the fragile acetabulum during the operation. In a patient with this condition, we performed a two-stage operation: first, autogenous bone grafting supplemented with hydroxyapatite filling, then rotational acetabular osteotomy (after new bone formation had been assured). Radiographs and CT scans showed favorable fusion of the grafted bone. Some 18 months after the second operation, arthrograms showed no inflow of contrast medium from the articular cavity into the bone cyst region, although this had been observed before treatment. Thus, an effective remodeling of bony congruency was indicated in the mobile acetabulum 5 years after the second operation. This two-stage operation appears to be useful for correcting acetabular dysplasia accompanied by a giant bone cyst and to carry a reduced risk of serious complications, such as deterioration of the articular surface of the acetabulum or necrosis of the translocated acetabulum.- - - - - - - - - - ranking = 1keywords = giant (Clic here for more details about this article) |
8/44. Giant geode at the olecranon in the rheumatoid elbow--two case reports.A single giant geode at the olecranon in a patient with rheumatoid arthritis (RA) is relatively rare, and may cause diagnostic difficulties or cause a spontaneous pathological fracture owing to weakness of the cortical bone associated with osteoporosis. We report two cases of patients presenting with single giant geodes at the olecranon. In one case we performed an open reduction and internal fixation with bone grafting for a pathological fracture due to the geode. In the other case we performed curettage of the geode with bone grafting to prevent a pathological fracture, and a synovectomy of the elbow. We suggest that the presence of a giant geode at the olecranon may necessitate surgical intervention to prevent the occurrence of a spontaneous pathological fracture.- - - - - - - - - - ranking = 0.5keywords = giant (Clic here for more details about this article) |
9/44. Leprous osteitis presenting as bone cyst and erosions.A 30-year-old man presented to the Hansen outpatient department with swelling and ulceration of toes for 2 months and swelling of the right fifth and fourth fingers and the left second finger for 1 month. In addition to skin lesions of lepromatous leprosy (subpolar type), there was nontender, non-fluctuant swelling of the right fifth and fourth fingers and left second finger. skin over the right fifth finger showed sinus-like openings with associated purulent discharge. He also had swelling and ulceration of second left toe. Slit-skin smear (SSS) showed a bacterial index of 6 from the ear lobes and cutaneous nodules, 4 from the patch, and 3 from normal skin. Modified Ziehl-Neelsen staining of the discharge extruding from the sinuses on the right fifth finger also showed abundant acid-fast bacilli. radiography of the hands and feet showed lytic lesions in the distal epimetaphyseal region o proximal phalanx of the right fifth finger and left second finger and erosion of distal end of proximal phalanges of both second toes. Histopathological examination of biopsy specimen from the patch (back) showed features of lepromatous leprosy, and Fite-Faraco stain for tissue acid-fast bacteria (AFB) was strongly positive. Fine-needle-aspiration cytology (FNAC) from the lytic lesion in the bone also showed predominantly foamy macrophages with strongly positive staining for AFB with a few interspersed lymphocytes, epithelioid cells and Langhans giant cells. On the basis of these features, a clinical diagnosis of subpolar lepromatous leprosy with leprous osteitis was made. In today's clinical era of improved case detection and prompt treatment with effective multidrug regimens, advanced bone changes are rarely encountered. We describe this case of lepromatous leprosy that developed cavitating lesions of the phalanges of the hand, seen on x-ray as well-defined bone cyst and erosions.- - - - - - - - - - ranking = 0.16666666666667keywords = giant (Clic here for more details about this article) |
10/44. Atypical pulmonary giant hydatid cyst as bilaterally symmetrical solitary cysts.A pulmonary giant hydatid cyst, a special clinical entity, is rare. Our case involves a young patient who presented with a bilaterally symmetrical solitary cyst in each lung, a feature consistent with congenital lung cysts. The radiological and immunological findings were equivocal. A diagnosis of giant hydatid cyst was made intraoperatively and both cysts were removed conservatively. A follow-up showed complete recovery.- - - - - - - - - - ranking = 1keywords = giant (Clic here for more details about this article) |
| | Next -> |