A 55 year old female with 2 years history of back ache with 6 months history of paresthesia in both legs with radicular pain and right leg weakness followed by left leg weakness after 2 months. The weakness gradually progressed so that for last 20days patient is unable to walk with diminished sensation below the level of lower abdomen.No h/o fever, weight loss, night pain or history of TB. On examination spastic paraparesis with sensory involvement without bladder and bowel involvement. No spinal tenderness. MRI spine posted below. Differentials?

A 61 year old male presented with suprasellar mass. Whats diagnosis?

18yrs Male A Globular, nontender,firm,mobile mass of size 1×1cm over midsternal region-2 months (No any other relevant history) cytosmear for your valuable opinion.

25Y/F. CP angle mass lesion. TB stained Squash smears.

A 24 year old boy presented with bilateral leg pain and facial swelling. Chest radiograph and a selected CT image are uploaded with case. What is your opinion regarding these.