Malignant disease conditions 

Choriocarcinoma is a highly malignant form of gestational trophoblastic neoplasia characterized by aggressive trophoblastic proliferation and early hematogenous spread. It may occur following a hydatidiform mole, spontaneous abortion, ectopic pregnancy, or term pregnancy.

Esophageal cancer is a malignant tumour arising from the epithelial lining of the oesophagus, the muscular tube that transports food from the pharynx to the stomach. It is an aggressive malignancy associated with late presentation, rapid progression, and poor overall survival.

Hydatidiform mole is a form of gestational trophoblastic disease characterized by abnormal proliferation of trophoblastic tissue and swelling of chorionic villi. It results from abnormal fertilization and is classified into two main types: complete hydatidiform mole and partial hydatidiform mole.

Febrile neutropenia is a medical emergency characterized by fever occurring in the presence of neutropenia, most commonly following chemotherapy for malignancy or as a result of bone marrow failure syndromes. It is associated with a high risk of severe bacterial and fungal infections because of impaired host immunity.

Oropharynx is located between the soft palate superiorly and the hyoid bone inferiorly. The oropharynx has four walls; soft palate, tonsillar region, base of tongue, and pharyngeal wall.