All are true regarding typhoid ulcer except -
Typhoid ulcers are placed longitudinally along the ileum.
On the other hand. Tubercular ulcers are placed transversely along the ileum (Mnemonic: (neck) tie lies longitudinally on the body).

Features of Typhoid ulcer -

Salmonella typhi primarily affects the ileum and colon, the terminal ileum is affected most often.
The Peyer's patches show ovoid ulcers with their long axes along the axis of the ileum (remember that in intestinal tuberculosis, the ulcers are transverse to the axis of the bowel).
The margins of the ulcer are slightly raised, and the base of the ulcers is base black due to the sloughed mucosa.
Though the enteric fever is an example of acute inflammation, neutrophils are invariably absent from cellular infiltrate and this is reflected in leucopenia with neutropenia and relative lymphocytosis in peripheral blood. The cellular infiltrates in typhoid consists of phagocytic histiocytes, lymphocytes and plasma cells.

Complications of Typhoid -

The most common complications of Typhoid are perforation and haemorrhage.
There is never significant fibrosis in case of typhoid, hence stenosis seldom occurs in healed typhoid lesions. (strictures are common features of intestinal Tuberculosis).
Perforation is less common in children below 5yrs
Placed transversely along the ileum
Multiple ulcer found in terminal ileum
Perforation occurs in 3rd week