Diagnostic Accuracy of Two Softwares for Detection of Intra-Bony Lesions in Multi-Detector Computed Tomography

Background: Bony jaw lesions have varied radiographic appearance and may pose difficulty in establishing radiographicdifferential diagnosis. Computed tomography is a useful tool to facilitate the correct diagnosis of these bony lesions.Objectives: To compare the volumetric measurement of bony lesions of the jaw using two commercially available softwaresfor the evaluation of CT imaging. Material and Methods: All patients were subjected for multi-slice CT scanning. Thevolumetric measurements were performed using two softwares; Myrian and Siemens. Results: This study was conducted on15 patients of both genders; males (66.7%) and females (33.3%), where 21 diagnosed lesions with an intra-bony spaceaffecting one or both of the jaws were included in the measurements. Myrian software showed statistically lower mean ofvolumetric measurement than Somatom (P-value <0.001). Conclusion: Although, Myrian software showed statisticallylower mean of volumetric measurement than Somatom. The clinicalrelevance of these finding still needs to be determined infuture studies. Thus, both softwares can still be useful diagnostic tool for volumetric measurements.

Mass of the Distal Phalanx of the Finger with Bony Lesion

PURPOSE: Previous study revealed that 90% of benign bone tumor of hand is enchondroma. In soft tissue tumor, 36% of glomus tumor and less than 5% of giant cell tumor of tendon sheath are revealed as bone involving lesions. However, primary bone tumor and soft tissue tumor are not reported frequently at the distal phalanx. We aimed to assess the specific characters of the distal phalangeal mass. MATERIALS AND METHODS: Fourteen cases of distal phalangeal masses with bony lesions were included, and clinical and radiologic review were done. RESULTS: Fourteen cases out of eighteen distal phalangeal mass cases were bony lesions of the distal phalanx. Chief complaints of patients were pain (ten cases), palpable mass (four cases), and both (one case). Six cases were benign bone tumor, eight were soft tissue tumor involving the bone. In eight soft tissue mass, four glomus tumors, two epidermoid cysts, two giant cell tumors of tendon sheath were diagnosed. Nail involvement was found in four cases, and three of them were diagnosed as glomus tumor. CONCLUSIONS: The high rates of bone involvement and nail deformity of the distal phalangeal mass must be considered.