Kate Steiner’s scientific contributions

LEARNING OBJECTIVES We illustrate the range of benign and malignant tumours affecting the major and minor salivary glands. The characteristic radiological features, which aid in the discrimination of the various pathologies, are demonstrated. The complimentary role of USS, fine needle aspiration for cytological diagnosis, and MRI are discussed and illustrated. ABSTRACT Salivary gland neoplasias represent less than 3% of all tumours. The majority of parotid tumours are benign, whereas up to half of submandibular and minor salivary gland tumours are malignant. The natural history and prognosis of the various malignant pathologies differs greatly. Thus the recognition of their specific radiological features is essential. A variety of pathologies, including pleomorphic adenoma, Warthin�s tumour, mucoepidermoid, adenoid cystic and acinic cell carcinomas. mixed malignant tumours, lymphomas and metastases will be illustrated. Methods of exact localization of tumours, in particular within the parotid gland, which is integral to appropriate surgical planning, and tumour staging are explained. The pattern of local and distant spread of each type of tumour is highlighted. The relative merits of ultrasound, CT and MRI and the role of fine needle aspiration cytology are discussed.

PURPOSE/AIM 1. Understand the imaging and histopathological characteristics of gastric mucosa associated lymphoid tissue lymphoma (MALToma). 2. Describe the imaging characteristics of systemic MALToma and unusual sites of recurrence. CONTENT ORGANIZATION MALT lymphoma (MALToma) is a B-cell transformation lymphoma occuring in mucosa associated lymphoid tissue. There are two histological types of MALToma; low grade which has a good survival rate and high grade which has poorer survival rate. MALTomas are typically localised diseases to the gut most commonly in the stomach. However, the MALToma can be found in sites distant from the gut. Extra-GI manifestations of MALToma may occur at the time of diagnosis or as the first site of recurrence post treatment. SUMMARY We will present a pictorial review of gastric MALToma on barium meal and correlate with upper GI endoscopy, histology and CT. We will describe a comprehensive pictorial review of gastric MALToma and the distant non-GI sites where MALToma can spread.