Cabot ring bodies
Cachexia
Café au lait spots
Calcium, increased
Calf pain
Carcinoembryonic antigen, increased
Central cyanosis
Cerebrospinal fluid glucose, decreased
Cerebrospinal fluid lymphocyte count, increased
Cerebrospinal fluid protein, increased
Ceruloplasmin, decreased
Cervical lymphadenopathy
Cheilitis
Cherry red spot on macula
Chest expansion, decreased
Chest hyperinflation
Chest pain
Chloride, decreased
Chloride, increased
Choreoathetosis
Chronic aortic regurgitation
Chronic back pain
Chronic cough
Chronic vision loss
Chronic watery diarrhea
Clitoromegaly
Color vision impairment
Complement C3, decreased
Complement C4, decreased
Conductive hearing loss
Constipation
Copper, decreased
Coprolalia
Corectopia
Corneal erosion
Corneal hypoesthesia
Corneal opacity
Cortisol, decreased
Cortisol, increased
Creatine kinase, increased
Creatinine, decreased
CSF rhinorrhea
Cushingoid habitus
Cycloplegia
Cytoid bodies
Cytoplasmic antineutrophil cytoplasmic antibodies, positive