Journal

Choledochol Cysts: a Variety of Imaging Presentations in Adults

WH Luk, EPY Fung, TKL Loke, JCS Chan

Hong Kong J Radiol 2004;7:154-9

Choledochal cyst is a rare entity usually presenting in infancy; hence, the literature on adult choledochal cyst is scarce. This article reviews findings of choledochal cysts in 31 adult patients who presented to the United Christian Hospital between 1997 and

Malignant Mesenchymoma Presenting as a Paraspinal Mass in a 14-year-old Boy

HS Fung, JLY Leung, SJ Shu, YL Lam, ACL Chan, SCH Chan

Hong Kong J Radiol 2004;7:149-53

Malignant mesenchymoma is a rare soft-tissue tumour. We report a case of malignant mesenchymoma in a 14-year-old boy who presented with a rapidly growing mass on his back. Computed tomography revealed a slightly hypodense tumour with heterogeneous contrast enhancement and

Intraosseous Lipoma: Report of 2 Cases

FCY Lam, JLY Leung, SJ Shu, ACL Chan, MK Chan, DHS Fung

Hong Kong J Radiol 2004;7:145-8

Intraosseous lipoma is a rare benign bone tumour. This report presents 2 cases of intraosseous lipoma: 1 occurring in the right intertrochanteric region of a 67-year-old man and 1 at the left distal fibula of a 72-year-old woman. For the

Isolated Haemorrhagic Brain Metastasis from Lung Adenocarcinoma in a 68-year-old Man

ASC Ching, PN Chan, HK Ng, KM Tse, YL Chan

Hong Kong J Radiol 2004;7:140-4

A solitary brain tumour originating from a lung adenocarcioma in a 68-year-old man is reported. The imaging features were discordant with the clinical picture and prompted surgery and subsequent histological examination. Results of computed tomography and magnetic resonance imaging suggested

A Case of Breast Cancer with Diabetic Mastopathy: Radiological and Pathological Correlation

EPY Fung, KF Tam, Li Allen, WF Yuen, J Lo, JCS Chan

Hong Kong J Radiol 2004;7:137-9

Diabetic mastopathy is a rare condition that occurs in young diabetic patients. The lesion may mimic a breast tumour because of its high degree of fibrosis and inflammation. This report describes a case of diabetic mastopathy

Radiation Dose to Patients Undergoing Interventional Radiological Procedures in Selected Hospitals in Malaysia: Retrospective Study

B Sapiin, KH Ng, BJJ Abdullah

Hong Kong J Radiol 2004;7:129-36

Objective: To study doses received by patients undergoing various interventional radiology (cardiac and non-cardiac) procedures.

Patients and Methods: A total of 310 patients undergoing cardiac procedures in 6 selected hospitals in Malaysia between July 2000 and May 2001 were studied

The Role of Surgical Resection, Radiation Dose, and Radiation Field Size in the Management of Gastric Lymphoma: Retrospective Study

AT Monroe, RW Hinerman, CG Morris, NP Mendenhall

Hong Kong J Radiol 2004;7:121-8

Objective: This retrospective review sought to determine outcomes in gastric lymphoma and analyse the effect of field size and radiation dose on patterns of recurrence and toxicity.

Patients and Methods: The study group comprised 31 patients (25 men and 6

Rebiopsy after Stereotactic Core-needle Breast Biopsy: Prospective Study

CY Lui,HS Lam, KF Tam, EPY Fung, LK Chan

Hong Kong J Radiol 2004;7:116-20

Objective: To review the indications for rebiopsy and subsequent pathology after stereotactic percutaneous core biopsy of breast lesions.

Patients and Methods: Stereotactic, 14-Gauge, core-needle biopsy was performed on 242 non-palpable breast lesions in 240 consecutive patients from 1 January

Effect of Retrospective Electrocardiography—gating on Quality of High-resolution Computed Tomography Images of the Lung

Z Pan, H Zhang, H Ling, B Ding, Q Song, K Chen, H Jiang

Hong Kong J Radiol 2004;7:112-5

Objective: To investigate the effect of retrospective electrocardiography-gating on the quality of highresolution computed tomography images of the lung.

Patients and Methods: Between October 2002 and August 2003, a total of 50 patients underwent high-resolution computed tomography

Combined Positron-emission Tomography—Computed Tomography: Merging Form with Function

ASC Ching, TK Au-Yong, CM Tong

Hong Kong J Radiol 2004;7:102-11

Combined positron-emission tomography–computed tomography is becoming a widely used imaging technique in nuclear medicine and nuclear radiology. Its unique dual functional-anatomical imaging capacity is highly complementary to conventional imaging, and it has become an integral part of the multidisciplinary

Ectopic Pregnancy

Full Article

N Murthy, A Bhat, A Kalyanpur

Hong Kong J Radiol 2008;11:132-7

This essay describes the different ultrasonographic features of ruptured and non-ruptured ectopic gestation in beta-human chorionic gonadotrophin–positive women with a history of vaginal bleeding.

Bilateral Congenital Hypoplasia of the Internal Carotid Arteries

Full Article

N Lath, M Taneja

Hong Kong J Radiol 2008;11:129-31

Bilateral congenital hypoplasia of the internal carotid arteries, terminating distally as ophthalmic arteries, was found in a 20-year-old man during investigation for intracranial haemorrhage. The magnetic resonance imaging and digital subtraction angiography findings of

Fire-eater Pneumonitis: Silent Aspiration and Spontaneous Resolution

Full Article

YK Cheung, KK Lau, X Li

Hong Kong J Radiol 2008;11:126-8

A 15-year-old street entertainer inadvertently and unknowingly aspirated a small volume of liquid hydrocarbon fuel during a fire breathing performance. Two days later, he developed pleuritic chest pain, fever, and vomiting. A chest radiograph revealed airspace

PET/CT: a Modality Important to All 3 Specialties of the College...and More

YL Chan

Hong Kong J Radiol 2004;7:101

No abstract available.

Nasal Neurilemmoma in a Patient with Neuroibromatosis 2

Full Article

HS Fung, PWY Lam, TK Tsang, WK Wong, CW Siu, CM Chan, KW Tang, YL Cheung

Hong Kong J Radiol 2008;11:122-5

Neurilemmoma (schwannoma) is a benign peripheral nerve sheath tumour that rarely occurs in the nasal cavity. Lesions that present in the paranasal sinuses and nasal cavity account for approximately 4% of head and neck neurilemmomas. In patients with a known

Five Patients with Gliosarcoma

Full Article

R Koul, P Tai, A Dubey

Hong Kong J Radiol 2008;11:116-21

Gliosarcoma is a rare primary malignancy of the central nervous system, classified by the World Health Organization as a high-grade glioma and a variant of glioblastoma multiforme. This report is of 5 patients with gliosarcoma, with emphasis on the pathology and

Cost-effectiveness Analysis of Protocol-driven Barium Enema Performed by Radiographers

Full Article

CM Chu, WH Ng, DYW Siu, WK Li, PSF Lee

Hong Kong J Radiol 2008;11:112-5

Objective: To assess the cost-effectiveness of protocol-driven barium enema performed by radiographers compared with that performed by radiologists.

Methods: This was a retrospective review of 248 consecutive patients

Audit of Ultrasonography for Diagnosis of Acute Appendicitis: a Retrospective Study

Full Article

HS Fung, S Lau, JCW Siu, CM Chan, SCH Chan

Hong Kong J Radiol 2008;11:108-11

Objective: To determine the utility and accuracy of ultrasonography for the diagnosis of acute appendicitis.

Methods: In this retrospective study, 242 of 286 patients undergoing ultrasonography of the appendix from 1 June 2006 to 31

Endovascular Management of Iatrogenic Renal Vascular Injuries Complicating Percutaneous Nephrolithotripsy: Role of Renal Angiography and Superselective Coil Embolisation

Full Article

TJ Tan, HS Teh, U Pua, SH Ho

Hong Kong J Radiol 2008;11:103-7

Objective: To describe the use of renal angiography in the detection of renal vascular injuries following percutaneous nephrolithotripsy and to assess the efficacy of endovascular management of these complications.

Malignant Mixed Germ Cell Tumour of the Ovary in a 10-year-old Girl

Full Article

KKM Kwok, TKL Loke, JPK Hui, MHY Lai, JCS Chan

Hong Kong J Radiol 2008;11:92-5

Ovarian neoplasm is relatively rare in the paediatric population compared with adults, but it is occasionally found in older children and adolescents presenting with abdominal distension. Germ cell tumours are the most common type of malignant ovarian neoplasms in

Interstitial Brachytherapy for Early Oral Tongue Cancer Using Iridium Hairpin or Wire

RKC Ngan, RKY Wong, F Tang

Hong Kong J Radiol 2004;7:88-94

Although both radiotherapy and surgery can cure the majority of patients with early oral tongue cancer, radiotherapy consisting mainly of interstitial brachytherapy has the advantage of preserving the tongue function. Interstitial brachytherapy alone employing iridium-192 hairpins or wires has been

Chronic Expanding Haematoma of the Adrenal Gland Mimicking Malignancy

Full Article

T Chu, KF Ma, CS Wong, LF Cheng, WT Yung, KW Chan

Hong Kong J Radiol 2008;11:89-91

Computed tomography and magnetic resonance imaging scans are often required to characterise an adrenal lesion according to its size, heterogeneity, content, and enhancement pattern. This report is of a diagnostic dilemma, in which a chronic expanding haematoma of

Spongiform Leukoencephalopathy after Intravenous Heroin Use: Evaluation by Diffusion-weighted Imaging

JCW Siu, EYK Tsui

Hong Kong J Radiol 2004;7:84-7

Spongiform leukoencephalopathy is a distinct pathological entity usually following inhalation of heroin, while spongiform leukoencephalopathy resulting from intravenous injection of heroin is very rare. The magnetic resonance imaging findings are non-specific with widespread symmetrical high-signal lesions in white matter. This

Gunshot Injury in Hong Kong: Report of 2 Cases

Full Article

HS Fung, S Lau, AMW Wai, AKH Lai, MK Chan, WK Wong, SCH Chan

Hong Kong J Radiol 2008;11:85-8

Gunshot injury is a serious but uncommon type of trauma in Hong Kong. This report describes 2 cases of gunshot injury, 1 by a handgun and 1 by a shotgun. The literature is reviewed, with emphasis on important imaging features and associated forensic

Primary Epiploic Appendagitis

A Li, S Lau, TKL Loke, JCS Chan

Hong Kong J Radiol 2004;7:81-3

Primary epiploic appendagitis is a benign self-limiting condition, which is not as rare as presumed. Computed tomography demonstrates characteristic features that enable correct diagnosis, thereby avoiding unnecessary treatment.

Clinical Evaluation of Radiation Dose Benefit and Image Quality of the Step-and-Shoot Technique Electrocardiogram-gated Coronary Computed Tomography Angiography

Full Article

GG Lo, JKF Chan, SK Yu, CW Lau, YF Leung

Hong Kong J Radiol 2008;11:81-4

Objective: To evaluate the radiation dose reduction benefit and image quality performance of SnapShot Pulse in step-and-shoot mode for helical coronary computed tomography angiography.

Methods: Twenty coronary computed tomography angiography

Magnetic Resonance Imaging Findings of Japanese Encephalitis

JCW Siu, CY Chan, YC Wong, MK Yuen

Hong Kong J Radiol 2004;7:76-80

The initial clinical presentation of Japanese encephalitis is usually non-specific and can be similar to other causes of encephalitis or encephalopathy. Early and accurate diagnosis requires a high index of suspicion by both physician and radiologist. This report describes the

Cherubism as a Rare Cause of Bilateral Expansion of the Mandible: Radiological Manifestations

Full Article

MH Atalar, E Albayrak, P Erdinc, S Bulut

Hong Kong J Radiol 2008;11:76-80

Objective: To describe the radiological findings of the rare osseous disorder cherubism.

Methods: Five patients with cherubism underwent clinical, radiological, and histopathological evaluation. The patients’ sex, age, and