Bosniak Classification For Renal Cysts

Bosniak Classification-Radiology Definition 3 copy

The Bosniak classification for renal cysts is helpful in the assessment of the malignant risk of the cystic renal lesions. It is also useful in determining which cysts require follow-up and treatment. The classification mainly describes the CT features but these features can be identified on MRI and ultrasound as well. Bosniak Classification: The Bosniak classification has divided the renal …

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Anatomy Of Liver Segments – Couinaud Classification

Liver Segments

The Couinaud’s classification divides the liver into eight segments. These liver segments are functionally independent. The liver is divided into segments in the horizontal plane by the right and the left main portal veins. It is also divided into the vertical plane by the right, middle and the left hepatic veins. The middle hepatic vein divides the liver into right …

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Anatomy Of The Knee Joint

Anatomy Of The Knee Joint - radiologydefinition

This article provides the overview about the articulation, type, capsule, synovium, ligaments and menisci of the knee joint. Articulation of the Knee Joint: The knee joint is formed by the articulation of the condyles of the femur above and the condyles of the tibia and their menisci below. Anteriorly there is articulation between the patellar surface of the femur and …

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Case No. 16: Paget’s Disease

Case No 16 Paget’s disease

Modality: X-Ray Tibia/Fibula (Lateral view) Description: Lateral x-ray of tibia/fibula reveals bony expansion, anterior bowing of the tibia with cortical thickening and trabecular coarsening. No cortical break or periosteal reaction noted. Diagnosis: Paget’s disease Key Points: Paget’s disease (osteitis deformans) is a common, metabolic bone dysfunction characterized by excessive abnormal bone re-modelling. It largely impacts the pelvis, spine, skull and long …

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Radiological Features Of Subarachnoid Cisterns

SUBARACHNOID CISTERNS

In this article, we are going to describe briefly the radiological features of subarachnoid cisterns. This article describes which modalities can be used to look for subarachnoid cisterns and how they are seen on different modalities. Ultrasound: Cisterna magna usually measures 2-10 mm in the 2nd and 3rd trimesters in an antenatal ultrasound. Cisterna magna is the only subarachnoid cistern that can …

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Case No. 15: Ollier’s Disease – Multiple Enchondromas

Case No 15 Ollier’s Disease - Multiple Enchondromas

Modality: X-Ray Hip. Description: Multiple non-expansile mixed types of lesion noted over both ilium, around both sacroiliac joints and both proximal femora. No fracture is seen. Both hip joint spaces are normal. Diagnosis: Ollier’s Disease – Multiple Enchondromas Key Points: Ollier’s disease primarily affects the long bones and cartilage of the joints of the arms and legs, specifically the area …

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Case No. 14: Enchondroma – Benign Bone Tumor

Case No 14 Enchondroma

Modality: X-Ray Of Hand. Description: X-ray of hand show intramedullary lucent lesion with chondroid calcification occupying the entire shaft of the 1st metacarpal bone. No cortical break or periosteal reaction noted. Differential Diagnosis: Low-grade chondrosarcoma. Bone Infarct. Intraosseous ganglion. Sarcoidosis. Tuberculosis. Diagnosis: Enchondroma Key Points: Enchondromas are common benign medullary cartilaginous neoplasms. Ollier disease and Maffucci syndrome are associated with …

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Case No. 13: Fibrous Dysplasia

Case No. 13: Fibrous Dysplasia

Modality: X-Ray Femur (Lateral view) Description: Lateral x-ray of femur shows anterior bowing of the femoral shaft with slight bony expansion and a long intramedullary diaphyseal radiolucent lesion with expansile remodeling and endosteal scalloping with hazy “ground-glass” appearance and some focally calcified matrix. No cortical break or periosteal reaction noted. No surrounding sclerosis was seen. Differential Diagnosis: Paget’s Disease Fibrous dysplasia …

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Cross-Sectional Anatomy of Thorax

Cross-Sectional Anatomy of Thorax

In this article, we are going to describe the cross-sectional anatomy of thorax which is essential in understanding cross-sectional imaging. Cross-Sectional Anatomy of Thorax Level T3: It is the level of superior mediastinum. The trachea lies in the midline with the right brachiocephalic artery, left common carotid artery and left subclavian artery anteriorly. The esophagus is seen behind the trachea …

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Case No. 12: Non-Ossifying Fibroma

Case No 12: SPOTTER-12-Non-ossifying-Fibroma

Modality: X-Ray Femur Description: Larger well-defined eccentrically located expansile lesion with multiple septations in the distal meta-diaphyseal region of the distal femur. Little surrounding sclerosis is seen. No cortical break noted. The small amount of periostitis along the lateral cortex is seen superiorly. Surrounding soft tissue is normal. Diagnosis: Non-ossifying Fibroma Key Points: The differential diagnosis of Non-ossifying fibroma are: …

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