Journal

Questionable Adequacy of Magnetic Resonance for the Detection of Ossification of the Posterior Longitudinal Ligament of the Cervical Spine

JJ Wong, OC Leung, MK Yuen

Hong Kong J Radiol 2011;14:78-83

Objective: To investigate the sensitivity of magnetic resonance for detecting cervical ossification of the posterior longitudinal ligament.

Methods: A retrospective review of 427 patients in whom cervical ossification of the posterior longitudinal ligament

Association of Osteosarcoma Necrotic Volumes with Tumour Size and Lung Metastasis: Revealed by Magnetic Resonance Imaging

M Nor Azam, NM Nik Munirah, W Zulmi

Hong Kong J Radiol 2011;14:73-7

Objective: Osteosarcoma is the most frequent skeletal malignancies in children and adolescents. Studies indicate that hypoxia of such solid tumours has a major prognostic impact; severe and long-lasting hypoxia results in tumour necrosis. Therefore presence of

Conservative Treatment of Acute Cholecystitis with Percutaneous Cholecystostomy and Antibiotics: Retrospective Review of Outcomes

KC Chan, PSF Lee, CC Chan

Hong Kong J Radiol 2011;14:68-72

Objective: To review the outcome of patients treated by percutaneous cholecystostomy and antibiotics alone for acute cholecystitis without resorting to elective cholecystectomy.

Methods: Data on patients who underwent percutaneous

Ovarian Malignant Mixed Germ Cell Tumour Presenting as Advanced Disease in an Adolescent Girl

Full Article

DD Rasalkar, WCW Chu, FWT Cheng, CK Li

Hong Kong J Radiol 2009;12:85-7

Ovarian malignant germ cell tumours are uncommon and predominantly affect girls and young women. Dysgerminomas (equivalent to testicular seminomas) and non-dysgerminomatous tumours are the 2 most common histological types; the mixed type is even rarer

Non-haemorrhagic Pontine Venous Infarct due to Thrombosed Cerebellar Venous Angioma

Full Article

SSM Lo, YL Cheung, KW Tang, CM Chan, CW Siu, KY Kwok, SCH Chan

Hong Kong J Radiol 2009;12:79-84

Developmental venous anomaly (also known as venous angioma or venous malformation) is one of the 4 main vascular malformations. Developmental venous anomaly is usually benign and clinically silent. This report is of a patient with cerebellar developmental venous

Abdominoscrotal Hydrocele: an Uncommon Entity in Adults Presenting with Lower Abdominal and Scrotal Swelling

Full Article

DD Rasalkar, WCW Chu, B Mudalgi, BK Paunipagar

Hong Kong J Radiol 2009;12:76-8

Abdominoscrotal hydrocele is an uncommon clinical entity that is infrequently reported in adults. Abdominoscrotal hydrocele consists of scrotal and abdominal components that are connected through the inguinal canal. This report is of a 36-year-old man with

Transcatheter Embolisation of a Renal Arteriocalyceal Fistula following Radiofrequency Ablation for Renal Cell Carcinoma

Full Article

EMW Man, KY Lau

Hong Kong J Radiol 2009;12:72-5

Radiofrequency ablation is a promising minimally invasive therapy for patients with renal cell carcinoma who are not suitable for surgical therapy. The procedure has a low complication rate. This report is of a patient with delayed life-threatening haematuria

Prolonged Survival with Multiple Pulmonary Metastases from Adenoid Cystic Carcinoma after Conservative Management

Full Article

TH Yeung, CS Wong, YC Chu, W Tam, KF Ma, WT Yung

Hong Kong J Radiol 2009;12:68-71

This report is of a 38-year-old woman with adenoid cystic carcinoma and extensive lung metastases. The patient had prolonged survival of almost 2 decades after conservative treatment. The radiological features of metastatic adenoid cystic carcinoma have rarely been

Serious Complication of Pituitary Apoplexy

Full Article

CY Cheung, B Lo, PP Iu

Hong Kong J Radiol 2009;12:64-7

A 50-year-old man suddenly collapsed at home following an acute episode of severe headache. At admission, his consciousness level was 4/15 on the Glasgow Coma Scale. Urgent computed tomography of the brain showed a large enhancing suprasellar mass.

Diagnosing Jejunal Volvulus in a Patient with a History of Left Lateral Hepatic Segmentectomy and Roux-en Y Hepaticojejunostomy

Full Article

EMW Man, WK Chau, JLS Khoo

Hong Kong J Radiol 2009;12:60-3

This report describes a patient with jejunal volvulus leading to both afferent and efferent loop obstruction. The patient had a history of Roux-en Y reconstruction after left lateral hepatic segmentectomy for recurrent pyogenic cholangitis. The clinical picture and computed

An Audit of the Upper Gastrointestinal Contrast Examination Protocol in Patients with Suspected Small Bowel Obstruction

Full Article

TYC Chu, CS Wong, WS Mak, KF Ma, LF Cheng

Hong Kong J Radiol 2009;12:57-9

Objective: Small bowel follow-through examination with Gastrografin (diatrizoate meglumine and diatrizoate sodium solution) is important for delineating the cause of small bowel obstruction. However, whether the standard protocol should include the 24-hour

Efficacy and Safety of Percutaneous Radiofrequency Ablation of Hepatocellular Carcinoma in a Regional Hospital

Full Article

WSW Chan, DHY Cho, SSH Chiu, WL Poon, SK Kei, SH Luk

Hong Kong J Radiol 2009;12:53-6

Objective: This study was performed to assess the treatment effectiveness and safety of percutaneous radiofrequency ablation of hepatocellular carcinoma in a regional hospital.

Methods: This was a retrospective review of percutaneous radiofrequency ablation

Dynamic Contrast Enhancement Magnetic Resonance Imaging Evaluation of Breast Lesions: a Morphological and Quantitative Analysis

Full Article

U Sivarajan, KJ Jayapragasam, YF Abdul Aziz, K Rahmat, SI Bux

Hong Kong J Radiol 2009;12:43-52

Objective: To correlate the qualitative and quantitative characteristics of breast lesions on magnetic resonance imaging with histopathology.

Methods: Diagnostic dynamic contrast-enhanced magnetic resonance imaging of the breast was performed

Persistent Stapedial Artery: Computed Tomography and Magnetic Resonance Imaging Features

Full Article

KY Kwok, SSM Lo, TK Tsang, TW Fan, TL Kwan

Hong Kong J Radiol 2010;12:139-42

Persistent stapedial artery is a rare congenital anomaly that has significant implications for middle ear operations. This report presents the imaging features — computed tomography and magnetic resonance imaging — of persistent stapedial artery in a child with Noonan

Mesenteric Phlebosclerosis — Features on Plain Radiograph and Computed Tomography Scan

Full Article

KY Kwok, SSM Lo, HS Fung, TW Fan, WK Wong

Hong Kong J Radiol 2010;12:136-8

Mesenteric phlebosclerosis is also known as phlebosclerotic colitis. Mesenteric phlebosclerosis is a rare disease related to non–thrombotic stenosis or occlusion of mesenteric veins, which can lead to subsequent ischaemic colitis. This report presents the

Progressive Multifocal Leukoencephalopathy in a Child as First Manifestation of Congenital Human Immunodeficiency Virus Infection

Full Article

DD Rasalkar, WCW Chu, BK Paunipagar, ELW Fung

Hong Kong J Radiol 2010;12:131-5

This report is of a 13-year-old girl who presented with progressive multifocal leukoencephalopathy as the first manifestation of congenital human immunodeficiency virus infection. Progressive multifocal leukoencephalopathy is a severe demyelinating disease of

Multiple Intracranial Vascular Anomalies in a Patient with Hypoplasia/aplasia of the Internal Carotid Arteries, Moyamoya Collateralisation, and Aneurysms of the Posterior Fossa Circulation

Full Article

DD Rasalkar, WCW Chu, BK Paunipagar

Hong Kong J Radiol 2010;12:127-30

Bilateral agenesis, aplasia, and hypoplasia of the internal carotid arteries are rare congenital anomalies that are associated with aneurysms of the circle of Willis and dolichoectasia of the vertebrobasilar system. This report of a patient with ruptured posterior fossa

Decubital Ischaemic Fasciitis: a Rare Pseudosarcoma

Full Article

CK So, OC Li, SK Kei, MK Yuen

Hong Kong J Radiol 2010;12:122-6

This report is of a patient with decubital ischaemic fasciitis. A 64-year-old woman presented with a right buttock mass for 1 month. She had a past history of a malignant fibrous histiocytoma at the right forearm, which had been treated. Ultrasound and magnetic

Colonic Perforation during Percutaneous Nephrolithotomy Treated Conservatively

Full Article

M Tan, P Uei, PS Jaywantraj, D Wong

Hong Kong J Radiol 2010;12:117-21

Colonic perforation is a rare complication occurring during percutaneous nephrostomy. This report describes a patient with this complication, which was clinically silent. The patient was treated by conversion of the nephrostomy to a colostomy, followed by

Bone Metastasis as the First Presentation of Hepatocellular Carcinoma

Full Article

KW Leung, JLY Leung, ANL Sy, CS Cheng, KF Chan

Hong Kong J Radiol 2010;12:113-6

This report is of a patient with multifocal bilobar hepatocellular carcinoma who presented with bone pain related to bone metastasis. Radiograph of the pelvis showed an expansile osteolytic bone lesion in the right superior pubic ramus. Review of the literature

Radiation Dose Survey: Comparison between New-generation Computed Tomography and 64-slice Multidetector Computed Tomography

Full Article

GG Lo, JKF Chan, CW Lau, H Geng, SK Yu

Hong Kong J Radiol 2010;12:107-12

Objective: To evaluate the radiation dose benefit of new-generation computed tomography compared with 64-slice multidetector computed tomography.

Methods: In this retrospective study, the radiation doses for patients undergoing new-generation computed tomography

Magnetic Resonance Imaging Measurements of Optic Sheath to Optic Nerve Diameter Ratio for the Diagnosis of Idiopathic Intracranial Hypertension

Full Article

SS Lingawi

Hong Kong J Radiol 2010;12:103-6

Objective: To evaluate the usefulness of optic sheath–optic nerve diameter ratio for the diagnosis of idiopathic intracranial hypertension.

Methods: This study included 45 patients with idiopathic intracranial hypertension and 19 healthy volunteers as a control

Mortality within 30 Days for Patients Older than 70 Years Receiving Chemotherapy: a Single-institution Retrospective Analysis

Full Article

RB Goody, ES Choong, J Calderwood, SJM Law, G Mazdai, GG Hanna, JJA McAleer

Hong Kong J Radiol 2010;12:95-102

Objective: The average life expectancy in western populations is increasing, as is the incidence of malignancy in older people. Historically, most chemotherapy clinical trials exclude patients older than 70 years from enrolment, so information on complications

Primary Retroperitoneal Mucinous Cystadenoma in a 52-year-old Man

KKT Lai, YYR Chan, ACW Chin, WF Ng, YHH Huang, YLM Mak, WC Wong

Hong Kong J Radiol 2004;7:223-5

A case of primary retroperitoneal mucinous cystadenoma in a male patient is presented. The pathogenesis and computed tomographic imaging features of this rare lesion are briefly discussed. Although it is difficult to make an accurate preoperative diagnosis and to predict

Laryngeal Papillomatosis with Pulmonary Spread: Case Report and Review

FCY Lam, TK Tsang, HS Fung, MW Wai, TL Kwan, SCH Chan

Hong Kong J Radiol 2004;7:219-22

Laryngeal papillomatosis is the most common benign tumour that affects the larynx in children. It is well known for its strong tendency to recur. Spread of the disease to the lung parenchyma is rare. There have been only a few

Multidetector Computed Tomography in the Diagnosis of Pulmonary Sling: Case Report

CH Tok, SA Sarji

Hong Kong J Radiol 2004;7:215-8

Pulmonary artery sling is a rare developmental vascular abnormality. In this abnormality, the left pulmonary artery arises from the right pulmonary artery, courses between the trachea and oesophagus, and forms a sling around the distal trachea. This arrangement gives

Interstitial Lung Changes in Sjogren’s Syndrome: Report of 3 Cases

FCY Lam, TL Kwan, AKH Lai, TS To, HHL Chau

Hong Kong J Radiol 2004;7:210-4

Sjögren’s syndrome is a chronic autoimmune inflammatory disease. It more commonly affects women than men, in the fourth and fifth decades of life. The syndrome is characterised by a clinical triad of dry eyes, dry mouth, and arthritis. It may occur as a primary disorder or as a secondary disorder in association with another connective tissue disorder, most often rheumatoid arthritis. Patients with

Teratoma in the Region of an Adrenal Gland in a 77-year-old Man

JPK Hui, WH Luk, CW Siu, JCS Chan

Hong Kong J Radiol 2004;7:206-9

Teratoma in the region of an adrenal gland is an uncommon retroperitoneal tumour. Only a few cases — mostly in young patients — have been reported. This case report describes such a tumour in a 77-year-old man who presented with acute urine

Computed Tomography Colonoscopy with Faecal Tagging in the Detection of Colorectal Tumours: Report of Local Experience

WH Kwan, WK Chau, WH Yeung, KP Wong, WK Kwok, TM Chan, J Khoo

Hong Kong J Radiol 2004;7:199-205

Objective: To determine the sensitivity and specificity of computed tomography colonoscopy with faecal tagging in the detection of colorectal polyps, adenomas, and carcinomas, with colonoscopy as the reference method.

Patients and Methods: A total of 51 patients underwent computed tomography

Effect of Cranial Irradiation on Pituitary Size in Patients Cured of Acute Lymphoblastic Leukaemia: Retrospective Study

KK Shing, D Roebuck, MP Yuen, KW Chik, CK Li, YL Chan

Hong Kong J Radiol 2004;7:195-8

Objective: To evaluate the pituitary glands of patients previously treated for acute lymphoblastic leukaemia with cranial irradiation.

Patients and Methods: Thirty nine patients who were cured of acute lymphoblastic leukaemia and who were regularly followed up from 1979 to 1992