Spinal tuberculosis (TB) or Pott's spine is the commonest extrapulmonary manifestation of TB. It spreads through hematogenous route. Clinically, it presents with constitutional symptoms, back pain, tenderness, paraplegia or paraparesis, and kyphotic or scoliotic deformities. Pott's spine accounts for 2% of all cases of TB, 15% of extrapulmonary, and 50% of skeletal TB. The paradiscal, central, anterior subligamentous, and neural arch are the common vertebral lesions. Thoracic vertebrae are commonly affected followed by lumbar and cervical vertebrae. Plain radiographs are usually the initial investigation in spinal TB. For a radiolucent lesion to be apparent on a plain radiograph there should be 30% of bone mineral loss. Computed tomographic scanning provides much better bony detail of irregular lytic lesions, sclerosis, disc collapse, and disruption of bone circumference than plain radiograph. Magnetic resonance imaging (MRI) is the best diagnostic modality for Pott's spine and is more sensitive than other modalities. MRI frequently demonstrates disc collapse/destruction, cold abscess, vertebral wedging/collapse, marrow edema, and spinal deformities. Ultrasound and computed tomographic guided needle aspiration or biopsy is the technique for early histopathological diagnosis. Recently, the coexistence of human immunodeficiency virus infections and TB has been increased globally. In recent years, diffusion-weighted MRI (DW-MRI) and apparent diffusion coefficient values in combination with MRI are used to some extent in the diagnosis of spinal TB. We have reviewed related literature through internet. The terms searched on Google scholar and PubMed are TB, extrapulmonary TB, skeletal TB, spinal TB, Pott's spine, Pott's paraplegia, MRI, and computed tomography (CT).

SUMMARYAneurysmal bone cysts (ABC) are benign neoplasms frequently occurring in the long tubular bones. It is very rare in temporal bone. We report a case of ABC of the left temporal bone in an 8-year-old Asian boy who presented clinically with swelling over the left temporal region for 5 months. CT and MRI features were suggestive of ABC. Surgical resection was performed and on follow-up the patient was doing well. CT and MRI are the imaging modalities for proper evaluation of ABC, aiding to diagnosis and helpful in treatment planning. BACKGROUND

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Fahr's disease is a rare neurodegenerative disorder that is characterized by the bilateral symmetrical deposition of calcium in the basal ganglia, thalamus, dentate nuclei and centrum semiovale in the absence of hypoparathyroidism. It is often familial. Hereby, we are reporting a rare case of Fahr's disease who presented with repeated episodes of seizures and was diagnosed as Fahr's disease after performing computed tomographic (CT) scan.

Introduction: Maxillofacial injuries are one of the most frequently encountered entities accounting for a large proportion of patients in emergency department. Present study was performed to assess the role of multidetector computed tomography (MDCT) in patients of maxillofacial trauma and to describe the spectrum of various patterns of injuries in maxillofacial region in this part of Nepal. Methods: The study was carried out on a prospective basis over a period of one year. All the patients referred for evaluation of maxillofacial trauma were included in the study. MDCT was done in patients of maxillofacial injury and the data was recorded and analyzed. Volumetric MDCT scan of the maxillofacial region was performed in axial plane with multiplanar reconstruction in coronal and sagittal planes were obtained wherever required. Results: Out of 60 patients of maxillofacial trauma 42 (70%) were males and 18 (30%) were females and age ranges from 12 to 70 years. The 11?30 years age group has the highest percentage (55%) of maxillofacial trauma, followed by 31?40 (20%). The common cause of injuries in our study was road traffic accidents (58.33%), fall from height (20%), physical assault (16.66%) and sport injuries (5%). Out of 60 patients there was total of 115 fractures. The frequency and types of fracture was as follows: orbital floor fracture in 21 (35%), maxillary sinus wall fracture in 18 (30%), nasal bone fracture in 17 (28.33%), jaw fracture in 15 (25%), zygomatic bone fracture in 13 (21.66%), orbital wall fracture in 11 (18.33%), naso?ethmoidal fractures in 9 (15%), frontal sinus fracture in 7 (11.66%), Lefort fracture in 1 (1.66%) and others 3 (5%). The highest percentage of fracture was of orbital floor (35%) followed by fracture of wall of maxillary sinus (30%) and nasal bone fracture (28.33%). Three cases had simultaneous injury of the globe and cervical spine; they underwent computed tomography/magnetic resonance imaging for the assessment of spine. Conclusion: Injuries to maxillofacial region is one of the most common emergency requiring accurate and early diagnosis for preventing unnecessary investigations and proper management. MDCT has high sensitivity and specificity and has high accuracy for detection of fracture. DOI: http://dx.doi.org/10.3126/ajms.v5i4.9561 Asian Journal of Medical Sciences 2014 Vol.5(4); 39-43

Background: Hysterosalpingography (HSG) is the radiographic technique for evaluation of uterine cavity and fallopian tubes. It still remains the best imaging procedure for fallopian tubes despite the advent of newer modalities and is used primarily for the evaluation of female infertility. 1,2 The purpose of the study was to assess the uterine and tubal abnormalities detected on radiographic HSG as causative factors of infertility and to describe their imaging features. Methods: This prospective study was conducted at the Department of Radiodiagnosis and Imaging, BPKIHS, Dharan. Forty-four both and . HSG was performed using non-ionic contrast medium under image intensifier fluoroscopic control during the follicular phase of menstrual cycle. Radiographic films were obtained and analyzed. Results: Out of the total 44 patient, 26 (59.0%) had primary infertility while 18 (41.0%) had secondary infertility. Tubal abnormalities were seen in 28 (63.6%) and uterine abnormalities in 2 (4.6%) patients. The most common tubal abnormality detected on HSG was tubal block (50.0%). Unilateral and bilateral tubal blocks were equally distributed (50.0% each). Proximal tubal block was observed in 8 (36.4%) and distal in 13 (59.1%) patients. Fifteen (34.1%) patients had hydrosalpinx. Conclusion: HSG is easy, safe, and cost-effective and plays vital role in the evaluation of female with infertility. The most common structural cause of female infertility found as per this study was tubal block.

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MR (magnetic resonance) imaging is a non invasive technique for evaluation of female pelvic masses. Due to its high spatial resolution and excellent tissue contrast, various masses of adnexal origin can be imaged and a confident diagnosis can be made. MRI helps to delineate normal anatomical structures and elucidate the pathological lesions. It has high sensitivity and specificity for differentiating benign adnexal masses from malignant ones. This review article gives a brief account of approach to adnexal masses based on tissue characterization on MR imaging.DOI: http://dx.doi.org/10.3126/njr.v1i1.6326 Nepalese Journal of Radiology Vol.1(1): 54-60