Journal

A Large Pontine Capillary Telangiectasia Detected by Susceptibility-weighted Imaging But Inconspicuous on Diffusionweighted Imaging

Full Article

HKAK Sadana, TA Lim

Hong Kong J Radiol 2010;12:190-3

A case of symptomatic pontine capillary telangiectasia detected by susceptibility-weighted imaging is reported. The lesion was inconspicuous on diffusion-weighted imaging. To our knowledge there is only limited literature emphasising the diagnostic utility of

Unilateral Twin Ectopic Pregnancy

Full Article

M George, S Nadarajah, CL Ong

Hong Kong J Radiol 2010;12:186-9

Unilateral twin ectopic pregnancy is a rare condition and only about 100 cases have been reported in the literature. In this article, we present a case of twin ectopic pregnancy in the left fallopian tube. A 38-year-old woman who had in-vitro fertilisation came to our

Unilateral Arteriovenous Malformation Associated with Moyamoya Disease

Full Article

PD Chan, K Rahmat, N Ramli, KA Kadir

Hong Kong J Radiol 2010;12:182-5

The presence of moyamoya disease with a brain arteriovenous malformation is extremely rare. The high incidence of morbidity in such cases suggests that this combination of features confers an ominous outlook, whilst the association between these two entities remains

Coats’ Disease Mimicking Retinoblastoma in a Three-year-old Boy with Known Acute Lymphoid Leukaemia

Full Article

DD Rasalkar, WCW Chu, BK Paunipagar

Hong Kong J Radiol 2010;12:178-81

Coats’ disease and retinoblastoma are the two common types of orbital pathology in young children. These two conditions are prognostically different but have overlapping imaging features. We present a case of proven Coats’ disease to illustrate the specific

Heavily Mineralised Malignant Synovial Sarcoma Mimicking a Benign Extraskeletal Chondroma

Full Article

HT Tam, WH Ng, KC Wong, JF Griffith

Hong Kong J Radiol 2010;12:174-7

A 15-year-old boy presented with a 6-month history of painful wrist swelling. Radiographs, computed tomography, and magnetic resonance imaging revealed a heavily calcified extra-osseous soft tissue mass considered to be a benign chondroma. In view of the

Interruption of Pulmonary Artery

Full Article

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

Hong Kong J Radiol 2010;12:170-3

Congenital interruption of the pulmonary artery is a rare condition. We present a case of isolated interruption of the right pulmonary artery in a young girl and a case of interruption of the left pulmonary artery associated with Tetralogy of Fallot in an adult male. The

Inadvertent Perithrombus Deployment of OptEase Vena Cava Filter: Use of Double-filter Technique for Pulmonary Embolism Protection during Retrieval of Malpositioned Filter

Full Article

U Pua

Hong Kong J Radiol 2010;12:166-9

We describe a patient with inadvertent perithrombus deployment of an inferior vena cava filter and illustrate the use of the double-filter technique in affording pulmonary embolism protection during retrieval of the malpositioned filter.

Spinal Subdural Enhancement Mimicking Metastases Following Suboccipital Craniotomy

Full Article

DD Rasalkar, WCW Chu, DYW Siu, BK Paunipagar, HT Wong, XL Zhu

Hong Kong J Radiol 2010;12:162-5

A 14-month-old boy underwent suboccipital craniotomy for cerebellar tumour. Magnetic resonance screening of the spine a day after the craniotomy revealed striking spinal subdural enhancement in the thoraco-lumbar region. The differential diagnosis included

Better Technology But Similar Outcomes: Lessons from the University of Florida Experience with Primary Radiotherapy for Early-stage Cervix Cancer

Full Article

TJ Galloway, RJ Amdur, CG Morris, AR Yeung, WM Mendenhall

Hong Kong J Radiol 2010;12:154-61

Objective: To determine if the use of more complex technology in the form of 3-dimensional treatment planning improved outcomes after primary radiotherapy for early-stage cervical cancer.

One-stop Breast Imaging Service in Hong Kong

Full Article

JYH Hui, AXN Lo, AWS Au Yeung, MKW Yang, SWW Chan, SH Lam, NWF Yuen, JCS Chan

Hong Kong J Radiol 2010;12:147-53

Objective: To evaluate potential benefits and patient acceptance of the one-stop breast imaging service in a regional hospital in Hong Kong.

Methods: A total of 87 patients referred from the new-case surgical breast clinic for one-stop breast imaging were prospectively

Cancer Biomarkers and Molecular Theranostics

Full Article

ESK Ma, CLP Wong

Hong Kong J Radiol 2010;13(Suppl):S42-50

Cancer biomarkers have evolved from assays based on proteins, hormones and enzymes to molecular assays based on DNA or RNA. These molecular cancer biomarkers have broad clinical applications in disease screening, diagnosis, classification, offering a

Continuing Therapy beyond Adjuvant Chemotherapy to Optimise Cure in Advanced Ovarian Cancer: a Dream Coming True?

Full Article

RKC Ngan

Hong Kong J Radiol 2010;13(Suppl):S33-41

The GOG111 and OV-10 were pivotal studies published in 1996 and 2000 respectively which established paclitaxel / cisplatin as standard postoperative adjuvant chemotherapy for advanced epithelial ovarian cancers. A second major breakthrough in the ensuing

New Horizons in the Management of Glioblastoma Multiforme: the End of the Beginning?

Full Article

J Tsang

Hong Kong J Radiol 2010;13(Suppl):S29-32

Glioblastoma multiforme is a highly invasive and aggressive brain tumour. It is the most commonly seen glioma with fast-growing features, being a devastating disease with no clear causation and no means of early detection. Less than 10% of glioblastoma

Systemic Therapy for Advanced Gastric Cancer

Full Article

W Yeo

Hong Kong J Radiol 2010;13(Suppl):S25-8

Gastric cancer is the fourth commonest cancer worldwide, with nearly a million new patients being diagnosed with this disease per year, of whom 55% are in East Asia. Regrettably, despite the availability of potentially curative resection, between 50 and 90% of

Recent Advances in the Treatment of Lymphomas

Full Article

E Tse, YL Kwong

Hong Kong J Radiol 2010;13(Suppl):S22-4

Malignant lymphoma is a common neoplasm and some are potentially curable if appropriate therapy is given. The use of the monoclonal anti-CD20 antibody rituximab in the management of follicular lymphoma has improved the outcome of patients.

Shifting the Paradigm for Maintenance Therapy for Non–small-cell Lung Cancer

Full Article

VHF Lee

Hong Kong J Radiol 2010;13(Suppl):S16-21

Systemic chemotherapy has been the standard treatment for advanced / metastatic non–small-cell lung cancer, particularly in those who do not harbour an epidermal growth factor receptor mutation. In the last decade, there was no established evidence to justify

Personalised Therapy with Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitors in Non–small-cell Lung Cancer: Consensus and Controversy

Full Article

ML Zhuo, J Wang

Hong Kong J Radiol 2010;13(Suppl):S10-5

The epidermal growth factor receptor tyrosine kinase inhibitors, including gefitinib and erlotinib, have been proven to provide significant benefit in progression-free survival and overall survival in patients who have received at least one line of prior

Current Role of Biological Agents in Colorectal Cancer

Full Article

Hong Kong J Radiol 2010;13(Suppl):S3-9

J Cassidy

Colorectal cancer is one of the most frequently diagnosed malignancies in the world. In spite of recent advances in chemotherapy, the prognosis for patients with metastatic colorectal cancer remains poor. The last decade of ground-breaking research on molecular

An Institutional Audit and Pictorial Review of Langerhans’ Cell Histiocytosis Presented with Intracranial Manifestations

Full Article

DD Rasalkar, C Tong, FWT Cheng, CK Li, BK Paunipagar, WCW Chu

Hong Kong J Radiol 2010;13:46-51

Objective: To review the intracranial manifestations and role of imaging in Langerhans’ cell histiocytosis.

Methods: This is a retrospective institutional review of clinical data and radiological findings of Langerhans’ cell histiocytosis patients

Breast Schistosomiasis Presenting as Mammographic Calcifications

Full Article

HHL Chau, APY Tang, GM Tse, TKF Ma, SK Chan

Hong Kong J Radiol 2010;13:43-5

A case of mammary schistosomiasis revealed by breast microcalcifications detected by mammography is reported. Although schistosomiasis can involve almost any organ, involvement of the breast is very rare. This case was diagnosed by stereotactic-guided

Tuberculosis of the Prostate and Seminal Vesicles

Full Article

J Joseph, H Narayanan, H Babu, A Praveen

Hong Kong J Radiol 2010;13:40-2

We report a rare manifestation of tuberculosis of the prostate and seminal vesicles without involvement of the rest of the genito-urinary tract. A 27-year-old male initially presented with clinical and laboratory evidence of pulmonary tuberculosis. Two weeks later, the

Metastatic Thyroid Carcinoma Presenting with Spinal Cord Compression

Full Article

HA Hassan, SA Hamid

Hong Kong J Radiol 2010;13:36-9

Metastatic follicular thyroid carcinoma presenting with spinal cord compression is rare. We describe a 69-yearold woman who initially presented with gradual onset of bilateral lower limb weakness and numbness for 3 months. Her magnetic resonance image revealed

Melanocytic Hyperpigmentation of the Tongue from Low-dose Radiotherapy

Full Article

RJ Amdur, PR Sandow, A Yeung, WM Mendenhall

Hong Kong J Radiol 2010;13:32-5

Several of our patients developed patches of melanotic hyperpigmentation (black spots) in the mucosa of the tongue during radiotherapy for brain tumours. The purpose of this report was to describe a representative case with a literature review. A

Segmental Pulmonary Artery Dissection in Systemic Lupus Erythematosus

Full Article

DD Rasalkar, BK Paunipagar, WCW Chu

Hong Kong J Radiol 2010;13:29-31

We report a unique case of segmental pulmonary artery dissection in a 48-year-old female, with confirmed systemic lupus erythematosus and pulmonary hypertension. Several cardiopulmonary manifestations of systemic lupus erythematosus have been

The Focal Hepatic ‘Hot Spot’ Sign of Superior Vena Cava Obstruction in Contrast-enhanced Computed Tomography

Full Article

J Joseph, H Narayanan, H Babu, A Praveen

Hong Kong J Radiol 2010;13:26-8

In patients with superior vena caval obstruction, computed tomography of the liver in its arterial or early portal phase may show abnormal hyperattenuation in segment IV of the left hepatic lobe. This abnormal enhancement is due to porto-systemic venous

Retroperitoneal Intramuscular Haemangioma: Imaging Features

Full Article

HA Hassan, SA Hamid

Hong Kong J Radiol 2010;13:23-5

Retroperitoneal intramuscular haemangiomas are quite rare. Interruption of the muscle layer by intramuscular cavernous haemangioma raised the suspicion of a soft tissue sarcoma. We discuss the radiological characteristics of a haemangioma compared to soft tissue

Retrospective Clinico-pathological Study of Germ Cell Tumours Managed in a Single Institution

Full Article

AKC Leung, KH Au, HY Yiu, YL Kwok, VC Sin, WL Leung, KC Ngan

Hong Kong J Radiol 2010;13:12-22

Objective: To study the clinico-pathological characteristics and outcome of germ cell tumours treated in the Department of Clinical Oncology, Queen Elizabeth Hospital, Hong Kong.

Pre-procedure Prognostic Factors to Predict Survival of Patients after Radiofrequency Ablation of Hepatocellular Carcinoma

Full Article

WSW Chan, SS Chiu, DHY Cho, SK Kei, WL Poon, SH Luk, CC Cheung

Hong Kong J Radiol 2010;13:3-11

Objective: This study evaluated the clinical, biochemical, and imaging characteristics to identify pre-ablative prognostic factors for the survival of patients undergoing radiofrequency ablation of hepatocellular carcinoma. Radiofrequency ablation has now been

Institutional Experience of Magnetic Resonance Urography in Children: a Pictorial Essay with Literature Review

Full Article

DD Rasalkar, WCW Chu

Hong Kong J Radiol 2010;13:161-70

Conventional imaging studies such as ultrasonography, intravenous urography, micturating cystourethrography, and radionuclide scintigraphy are the basic investigations used in daily clinical practice for the diagnosis and monitoring of obstructive uropathy in

Pancreatic Neoplasm in a Patient with Situs Inversus Totalis

Full Article

BK Paunipagar, DD Rasalkar, P Lonikar, WCW Chu

Hong Kong J Radiol 2010;13:158-60

We reported on a patient with a cystic neoplasm of the pancreas with situs inversus totalis that showed the typical imaging features of serous cystadenoma in an anatomically inverted pancreas. The possible coexistence of malformations of transposed organs and