A Collision Tumor of the Esophagus: Mixed Squamous Cell Carcinoma and Neuroendocrine Carcinoma.
A Reum ChoeKi Nam ShimJiyoung LimEun Mi SongChung Hyun TaeSung-Ae JungMin Sun JoPublished in: The Korean journal of gastroenterology = Taehan Sohwagi Hakhoe chi (2021)
Collision tumors are extremely rare, and currently, no therapeutic protocols are established. A 64-year-old man presented to his physician with complaints of right chest and abdominal pain. The contrast-enhanced CT scan showed a mass measuring 3.6 cm around the gastric fundus. Esophagogastroduodenoscopy was performed and a semicircular longitudinal ulcerative mass was found at the distal esophagus. A mass measuring about 4 cm with central ulceration was noted at the cardia. The esophageal biopsy revealed positivity for a component of neuroendocrine carcinoma adjacent to a squamous cell carcinoma. PET-CT revealed a mass in the esophagus and cardia and several tumors in the whole liver, pancreas, and bone. The patient was finally diagnosed with a collision tumor of the esophagus with multiple metastases. In conclusion, patients with collision tumors must undergo active multidisciplinary management that will include pathologists and oncologists, who will decide on proper treatment strategies.
Keyphrases
- contrast enhanced
- squamous cell carcinoma
- pet ct
- computed tomography
- magnetic resonance imaging
- abdominal pain
- diffusion weighted
- magnetic resonance
- positron emission tomography
- dual energy
- emergency department
- primary care
- single cell
- bone mineral density
- radiation therapy
- minimally invasive
- diabetic retinopathy
- image quality
- body composition
- fine needle aspiration