Thymus

🩺 Before you name anything

Take a deep breath. Let's start by looking at the overall structure at low power. Notice the lobules with a darker cortex and a paler medulla. This is a classic feature of the thymus. Before you name anything, identify these lobules. The key feature here is the presence of Hassall's corpuscles in the medulla, which confirms the thymus. Students often rush to high power and miss the big picture. Focus on the architecture first, and then look for the signature structures. Remember, the cortex is darker due to densely packed lymphocytes, while the medulla is lighter. Spotting Hassall's corpuscles will earn you marks. Avoid the mistake of confusing this with lymph nodes, which lack these corpuscles. Stay calm and methodical, and you'll do well.