Case Reports

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

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

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

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

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WSW Chan, WL Poon, DHY Cho, SH Luk

Hong Kong J Radiol 2009;12:27-30

An 86-year-old patient with infrarenal abdominal aortic aneurysm and right common iliac artery aneurysm was treated with endovascular aneurysm repair with an endograft after internal iliac artery embolisation with coils, followed by cross-femoral bypass

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KY Kwok, SSM Lo, SQH Chou, KS Tse, YL Cheung

Hong Kong J Radiol 2009;12:24-6

Traumatic intrauterine foetal subdural haemorrhage is a rare condition. It is unusual to diagnose this condition by computed tomography scan because of the ionizing radiation hazard. This report describes the radiological findings of intrauterine foetal subdural

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R Koul, A Dubey

Hong Kong J Radiol 2009;12:20-3

Spinal angiolipomas are rare benign tumours composed of mature lipocytes admixed with abnormal blood vessels. Spinal angiolipomas account for 0.14% to 1.20% of all spinal axis tumours and 2% to 3% of extradural spinal tumours. Extradural tumours usually

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R Koul, R Senno, A Dubey

Hong Kong J Radiol 2009;12:16-9

This report is of a 44-year-old woman with an alpha-foetoprotein–producing rectal adenocarcinoma. At presentation, her serum alpha-foetoprotein was 158,334 μg/L, and investigation excluded other causes, such as gynaecological malignancy, hepatocellular carcinoma,

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G Soo, KK Lau

Hong Kong J Radiol 2009;12:12-5

Dialysis-related beta-2-microglobulin amyloidosis is a well-recognised complication of long-term haemodialysis. The joints are preferentially affected. Most patients with amyloid arthropathy are asymptomatic, with the first symptom usually presenting as a highly

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MMP Tong, AWH Ng, EHY Hung

Hong Kong J Radiol 2009;11:186-9

Puerperal ovarian vein thrombosis is an uncommon disease. This report describes a 37-year-old woman who presented with postpartum fever and right lower abdominal pain. Multidetector computed tomography scan showed extensive right ovarian vein thrombosis with

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EHY Hung, WK Kwok, MMP Tong

Hong Kong J Radiol 2009;11:183-5

This report is of a 48-year-old man with a painful swelling of the left heel, who was diagnosed with Haglund syndrome. The characteristic radiographical and magnetic resonance imaging features are described.

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CP Ding, J George, K Jayarani, P Jayalakshmi

Hong Kong J Radiol 2009;11:179-82

Brown tumour (osteitis fibrosa cystica) occurring in the spine causing myelopathy is rare. This report is of a man with brown tumour of the spine, who presented with sudden backache and progressive lower limb weakness leading to a preliminary diagnosis of metastasis.

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HS Fung, S Lau, KS Tse, JWC Wai, WK Wong, KW Tang, SCH Chan

Hong Kong J Radiol 2009;11:176-8

Focal fatty replacement of the pancreas is a rare benign disease that has been associated with obesity, diabetes mellitus, chronic pancreatitis, hereditary pancreatitis, and obstruction of the pancreatic duct. This report of a 48-year-old woman with focal fatty

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TYC Chu, CS Wong

Hong Kong J Radiol 2009;11:172-5

Bone metastasis from gastrointestinal stromal tumour is a rare outcome of this uncommon disease. This report is of a 73-year-old man with gastrointestinal stromal tumour who developed bone metastases after complete tumour resection. The condition is worthy of

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V Lai, HY Lau, WC Chan, CS Wong

Hong Kong J Radiol 2009;11:168-71

Portal and mesenteric thrombophlebitis is a well-documented but rare complication of acute appendicitis. The condition is caused by ascending infection and is potentially life threatening. Prompt diagnosis and treatment with surgery, antibiotics, and anticoagulants are

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JSF Shum, SSW Lo, CWH Yeung, TM Chan, NL Sy, CS Cheng, KY Lau

Hong Kong J Radiol 2009;11:164-7

This report is of a patient with pulmonary epithelioid haemangioendothelioma, a rare neoplasm. This report highlights the potential multicentric nature of this disease, which can be easily mistaken for widespread metastasis of unknown primary or granulomatous

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A Hegde, SB Desai

Hong Kong J Radiol 2009;11:161-3

Superior mesenteric artery syndrome is caused by narrowing of the angle between the aorta and the superior mesenteric artery, resulting in compression of the third part of the duodenum. This report is of an elderly emaciated woman who presented with a history

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

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

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

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

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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

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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

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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

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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

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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

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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

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

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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