Vol. 7 No. 2, 2004

Table of Contents


Imaging Islet Cell Tumours

A McLean

Hong Kong J Radiol 2004;7:61-5

Islet cell tumours are rare lesions. The majority (85%) are functioning hormone-producing tumours, insulinomas and gastrinomas being the most common. Approximately 15% of islet cell tumours are non-functioning. These are usually larger lesions, often presenting at an advanced stage as


Imaging of Metastatic Melanoma

DM King

Hong Kong J Radiol 2004;7:66-9

Cutaneous melanoma is a widely metastasising neoplastic disease with an unpredictable pattern of spread. Imaging has an important role to play in the management of this disease, particularly in the delineation of metastases. This article discusses the use of ultrasound,


External Beam Radiotherapy for Hurthle Cell Carcinoma of the Thyroid

JG Brabham, CG Morris, RJ Amdur, WM Mendenhall

Hong Kong J Radiol 2004;7:70-1

Objective: To analyse the efficacy of external beam radiotherapy in patients with Hürthle cell carcinoma of the thyroid treated with curative intent.

Patients and Methods: Five patients received postoperative radiotherapy for suspected subclinical (3 patients) or gross residual (2 patients)

Reactivation of Hepatitis B after Irinotecan

LCY Lui, RTT Chan, CCH Kwok, WM Wong, CC Yau, GKH Au, CL Lai

Hong Kong J Radiol 2004;7:72-5

Objective: To analyse the incidence of hepatitis B reactivation following treatment with irinotecan-based combined chemotherapy and the outcomes of patients with hepatitis B reactivation.

Patients and Methods: A prospective phase II study investigating the response to irinotecan, leucovorin, and 5-fluorouracil


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

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.

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


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