Test tube-shaped rete pegs is a feature of:: (A) Psoriasis., (B) Reiter's syndrome., (C) Geographic tongue., (D) OSMF.
Answer is A. Monro abscess seen in:

Psoriasis, geographic tongue

  ↓
Elongation of rete ridges

Reiter’s syndrome

  ↓
No elongation
In Psoriasis → ‘Test tube’ shaped rete ridges