1-2-3 sign or Pawnbrokers sign is seen in
Garland triad, also known as the 1-2-3 sign or Pawnbrokers sign, is a lymph node enlargement pattern which has been described in Sarcoidosis: Right paratracheal nodes; Right hilar nodes and Left hilar nodes. Hilar lymphadenopathy is symmetrical and usually massive.
Kaposi sarcoma
Sarcoidosis
Castleman's disease
Wegners Granulomatosis
Fundamentals in Radiology