This report describes a rare case of parosteal ossifying lipoma of the fibula. Very few reports have described the magnetic resonance (MR) imaging features with gadolinium enhancement of this neoplasm. In this case, low-signal-intensity strands within the lipomatous mass on T1-weighted image with varying degrees of enhancement were detected. Thus, parosteal ossifying lipoma should be included within the group of gadolinium-enhanced benign lipomatous tumours that may mimic liposarcoma on MR imaging. However, the characteristic radiographic appearance, together with computed tomography or MR imaging features, should aid in the correct diagnosis of this condition.
Adult ; Bone Neoplasms ; diagnosis ; Diagnosis, Differential ; Female ; Fibula ; diagnostic imaging ; pathology ; Gadolinium ; Humans ; Lipoma ; diagnosis ; Magnetic Resonance Imaging ; Tomography, X-Ray Computed

An epithelioid hemangioma involving three contiguous bones in continuity has, to the best of our knowledge, not been reported in the literature. A case of a 48-year-old man presented with radiating pain to the lower thoracic region for two years. A radiograph and CT scan revealed both permeative osteolytic and multiple trabeculated lesions involving the left posterior part of the 10th rib as well as the 9th and 10th vertebral bodies in continuity and was misled as a malignant or infectious lesion. The histopathology and immuno-histochemistry of the lesion confirmed the diagnosis of an epithelioid hemangioma. The lesion was still stable as of three years after surgery.
Bone Neoplasms/pathology/*radiography/surgery ; Diagnosis, Differential ; Hemangioendothelioma, Epithelioid/pathology/*radiography/surgery ; Humans ; Male ; Middle Aged ; Ribs/pathology/*radiography/surgery ; Spinal Neoplasms/pathology/*radiography/surgery ; Thoracic Vertebrae/pathology/*radiography/surgery ; *Tomography, X-Ray Computed

INTRODUCTIONThis study aimed to evaluate radiological findings in patients with chondroblastoma (CB) in tubular and non-tubular bones (NTBs).

METHODSWe retrospectively reviewed the medical records of patients with CB. Data collected included patients' gender and age, type, size and location of bone involved, and imaging findings regarding border, lobulation, calcification, trabeculation, cortical expansion and destruction, periosteal reaction, soft tissue component and fractures. Magnetic resonance imaging and/or multidetector computed tomography were used to determine the presence of any internal cystic space or secondary aneurysmal bone cyst that may have affected the radiological appearance of CB.

RESULTSAll 31 lesions (18 tubular bones, 13 NTBs) exhibited geographic bone destruction and did not involve the adjacent joints. Univariate analysis showed that NTB lesions were found in older patients and were associated with thin trabeculation (p < 0.01) and well-defined margins (p < 0.05), whereas tubular bone lesions correlated with thick trabeculation and partially ill-defined margins. On multivariate analysis, age and type of bone involvement were significantly correlated. An increase in age by one year reduced the risk of having tubular bone involvement by about 27% when compared with NTBs (p = 0.011). Thin trabeculation was also significantly correlated with NTB lesions.

CONCLUSIONAge was the most significant parameter, as increased age was found to reduce the risk of tubular bone involvement. Patients with NTB lesions were significantly older than those with tubular bone lesions. Based on imaging alone, thin trabeculation showed significant correlation with CB occurring in NTBs on both univariate and multivariate analyses.

Adolescent ; Adult ; Bone Cysts, Aneurysmal ; diagnosis ; diagnostic imaging ; Bone Neoplasms ; diagnosis ; diagnostic imaging ; Bone and Bones ; diagnostic imaging ; pathology ; Child ; Chondroblastoma ; diagnosis ; diagnostic imaging ; Female ; Humans ; Magnetic Resonance Imaging ; Male ; Multidetector Computed Tomography ; Multivariate Analysis ; Reproducibility of Results ; Retrospective Studies ; Young Adult

INTRODUCTIONWe aimed to retrospectively review the ultrasonography (US) findings of patients with clinically suspected soft tissue infection of the legs and to determine whether there is a correlation between US diagnosis and further clinical management.

METHODSWe reviewed the US findings of consecutive patients with clinically suspected soft tissue infection of the legs who were referred for emergency US during a consecutive two-year period. The indications for US were recorded and the findings evaluated. The effect of the US findings on further clinical management (medication alone versus medication with surgical intervention [SI]) was reviewed.

RESULTSA total of 51 legs from 38 patients were enrolled in the study. The most common indication for US was to rule out necrotising fasciitis (35.3%). The most frequent US diagnosis was isolated cellulitis (21.6%). Both groups of patients (with and without abscess) were treated with medication with or without SI. There was no statistically significant correlation between the presence or absence of abscess and further clinical management (p = 0.216), between the size (length and thickness) of the abscess and the type of SI (p = 0.687 and 0.243, respectively)

CONCLUSIONIn our study, the most frequent US diagnosis was isolated cellulitis, and we found no significant correlation between US findings and clinical management (medication or SI). Our results should encourage sonologists to evaluate in detail patients with clinically suspected soft tissue infection of the legs and to provide information regarding each layer of tissue studied.

Adolescent ; Adult ; Aged ; Aged, 80 and over ; Child ; Child, Preschool ; Cross-Sectional Studies ; Emergencies ; Female ; Humans ; Leg ; diagnostic imaging ; Male ; Middle Aged ; Retrospective Studies ; Soft Tissue Infections ; diagnostic imaging ; Ultrasonography ; methods ; Young Adult