International Scholarly Research Notices

Clinical Study

Lung Cancer Diagnosed More Than Five Years after the Development of Polymyositis/Dermatomyositis

Table 1

Bohan and Peter diagnostic criteria for dermatomyositis/polymyositis.
(1) Symmetrical weakness of limb-girdle muscles and anterior  neck flexor 
(2) Muscle biopsy shows evidence of characteristic myositis 
(3) Elevated serum skeletal muscle specific enzyme, especially  creatinine phosphokinase 
(4) Electromyographic (EMG) evidence of myositis 
(5) Typical dermatomyositis rash, including heliotrope and  Gottron’s papules 
Definite polymyositis: all of items (1)–(4); probable: any three of items (1)–(4); possible: any two of items (1)–(4). Definite dermatomyositis: item (5) plus any three of items (1)–(4); probable: item (5) plus any two of items (1)–(4); possible: item 5 plus any one of items (1)–(4).