Question:medium
Which of the following is not seen in the anterior mediastinum?
Which of the following is not seen in the anterior mediastinum?
Show Hint
Remember the anterior mediastinum 4 Ts; nerve-origin tumours sit posteriorly.
Updated On: Jun 24, 2026
- Thyroid tumour
- Thymoma
- Lymphoma
- Neurogenic tumor
Show Solution
The Correct Option is D
Solution and Explanation
Step 1: Recall the compartment contents. The anterior mediastinum normally houses the thymus, lymph nodes and possible retrosternal thyroid, sitting in front of the pericardium.
Step 2: Use the four Ts mnemonic. Anterior mediastinal masses are Thymoma, Teratoma, Thyroid lesions and Terrible lymphoma. That accounts for thymoma, lymphoma and thyroid tumor among the options.
Step 3: Find the exception. Neurogenic tumors grow from the nerves and sympathetic chain that run in the posterior mediastinum, so they are characteristic of the posterior, not anterior, compartment.
The nerve-derived tumor belongs posteriorly, making it the outlier.\[\boxed{\text{Neurogenic tumor}}\]
Step 2: Use the four Ts mnemonic. Anterior mediastinal masses are Thymoma, Teratoma, Thyroid lesions and Terrible lymphoma. That accounts for thymoma, lymphoma and thyroid tumor among the options.
Step 3: Find the exception. Neurogenic tumors grow from the nerves and sympathetic chain that run in the posterior mediastinum, so they are characteristic of the posterior, not anterior, compartment.
The nerve-derived tumor belongs posteriorly, making it the outlier.\[\boxed{\text{Neurogenic tumor}}\]
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