Spot the diagnosis -105

(1) A patient came with chronic pain abdomen . On clinical examination there is tenderness on the left iliac fossa at the junction of lower one third and upper two third of the line which joins umbilicus to the left anterior superior iliac spine . (a)Spot the diagnosis ?
Ans Chronic amoebic colitis
(b) What is the name of this point ?
Ans Manson 's Bar amoebic point .