P103 Case report: osseous choristoma of the tongue
Osseous choristoma is mature bone proliferation at a location foreign to where this tissue is typically found. Lingual osseous choristomas (osseous choristomas of the tongue) are rare benign lesions, with a systematic review in 2020 finding only 69 published cases to date. (Source: The British Journal of Oral and Maxillofacial Surgery)
Source: The British Journal of Oral and Maxillofacial Surgery - December 1, 2023 Category: ENT & OMF Authors: Sarah Simpson, Sarah Simpson, Shadaab Mumtaz Source Type: research

P104 Submandibular foregut duplication cyst: a case report
Foregut duplication cysts are an uncommon type of congenital cyst in the head and neck region, its presence in the adult population is extremely rare. Here we present a case of this in the submandibular space of an adult. (Source: The British Journal of Oral and Maxillofacial Surgery)
Source: The British Journal of Oral and Maxillofacial Surgery - December 1, 2023 Category: ENT & OMF Authors: Esra Amoura, Esra Amoura, Andrew Rajkumar, Daniel Brierley, Iain Varley Source Type: research

P105 Fibrous histiocytoma of the hard palate – clinico-pathological description of a rare tumour with literature review
Fibrous histiocytoma (FH) is a soft tissue tumour which can occur throughout the body. Its presence in the oral cavity is rare and diagnosis requires the use of histopathological and immunohistochemical analysis. There have only been 59 cases reported in English language literature to date. (Source: The British Journal of Oral and Maxillofacial Surgery)
Source: The British Journal of Oral and Maxillofacial Surgery - December 1, 2023 Category: ENT & OMF Authors: Zhijia Mimi Zhou, Zhijia Mimi Zhou, Alisha Amin, Shona Sawhney, Jonathan Dennis, Shadaab Mumtaz, Ian Proctor, Shilen Patel Source Type: research

P106 A rare case of a congenital ranula in a newborn
This report highlights a rare case of a congenital ranula presenting in a newborn. Congenital ranulas are a rare occurrence reported to have an incidence of 0.74%. Ranulas are cystic malformations seen in the floor of the mouth; formed as a result of mucus extravasation into the surrounding soft tissues (pseudocyst), or as a blocked sublingual duct occasionally secondary to salivary duct atresia, ostial adhesion or trauma. This causes the duct to expand forming a mucous retention cyst. They often present as a soft fluctuant swelling with a bluish tinge. (Source: The British Journal of Oral and Maxillofacial Surgery)
Source: The British Journal of Oral and Maxillofacial Surgery - December 1, 2023 Category: ENT & OMF Authors: Masa Shammout, Masa Shammout, Aya Shammout, Amit Dattani, Kevin McMillan, Rhodri Williams Source Type: research

P107 Presentation of IgG4- related disease (IgG4-RD) in the head and neck region – a literature review
IgG4-RD is a rare condition with a highly variable clinical presentation, single or multi-organ, and is a notorious mimic, particularly of malignancy by forming “pseudotumours”. Several entities, e.g. (Source: The British Journal of Oral and Maxillofacial Surgery)
Source: The British Journal of Oral and Maxillofacial Surgery - December 1, 2023 Category: ENT & OMF Authors: Victoria Bulmer, Victoria Bulmer, Hadeel Omer, Ben Steel Source Type: research