A variety of intrinsic and extrinsic tumours and tumour-like conditions may affect the infrapatellar (Hoffa's) fat pad (IFP). MR imaging is the technique of choice in evaluating these conditions, but correlation with radiographs is important to identify those lesions producing mineralization. This pictorial review illustrates the spectrum of mass-like lesions that can affect the IFP, emphasizing the radiographic and MR findings that suggest a specific diagnosis.

A 25-year-old Chinese woman presented with a painful left-lower-quadrant abdominal mass. Computed tomography (CT) demonstrated a dense forked foreign body within an extraluminal mass. A 2.5 cm bamboo skewer surrounded by inflamed omentum was found at laparotomy. Different CT densities of bamboo skewers were obtained when exposed to air, water and 2% Gastrografin in an in vitro experiment. Awareness of the possible variations in appearances of wooden foreign bodies in and around the bowel may aid their CT diagnoses.

We present a case of true facial artery aneurysm with no associated risk factors, which was non-pulsatile on presentation. This case is unique as the lesion was identified using computed tomography scanning, due to the unusual presentation. The vast majority of aneurysms of the head and neck have a traumatic aetiology, giving rise to false aneurysms; true aneurysms are extremely rare. We discuss the implications of such a lesion and its management.

Acute retinal necrosis (ARN) comprises of epicleritis or scleritis, periorbital pain, uveitis, vitreous opacity, and necrotizing retinitis. ARN is very diffi cult to make diagnosis if patient have several complicated ocular diseases and no views on the fundus examination. In this study, a suspicious ARN case reported here who had a left eye sudden visual loss, periorbital pain, uveitis, vitreous opacity, old choroidal hemorrhage and an area of pale retina (fundus was partially viewed due to cataract and vitreous opacity). A vitrectomy was performed and found vitreous hemorrhage (VH) and a newer choroidal hemorrhage (CH) instead of ARN. Reviews on the clinical fi nding and management of patients with ARN, VA and CH were discussed in this report.