<prompt> Pencil-in-cup deformity is seen inRheumatoid ArthritisPsoriatic ArthritisAnkylosing spondylitisGouty Arthritis  <response>: B Psoriatic Arthritis Psoriatic Arthritis PsA: The peripheral and axial arthropathies in PsA show a number of radiographic features that distinguish them from RA AS, respectively. Characteristics of peripheral PsA include DIP involvement, including the classic pencil-in-cup deformity; marginal erosions with adjacent bony proliferation whiskering; small joint ankylosis; osteolysis of phalangeal and metacarpal bone, with telescoping of digits; and periostitis and proliferative new bone at sites of enthesitis Characteristics of axial PsA include asymmetric sacroiliitis 