| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Is a | Ectodermal dysplasia with hair-nail defect | true | Inferred relationship | Existential restriction modifier |  |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Is a | Congenital alopecia | true | Inferred relationship | Existential restriction modifier |  |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Is a | Developmental hereditary disorder | true | Inferred relationship | Existential restriction modifier |  |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Is a | Hereditary diffuse palmoplantar keratoderma | true | Inferred relationship | Existential restriction modifier |  |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Is a | Genetic disorder of nail | true | Inferred relationship | Existential restriction modifier |  |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Is a | Hereditary cancer-predisposing syndrome | true | Inferred relationship | Existential restriction modifier |  |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Is a | Genetic disorder of skin pigmentation | true | Inferred relationship | Existential restriction modifier |  |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Is a | Autosomal recessive hereditary disorder | true | Inferred relationship | Existential restriction modifier |  |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Is a | Dystrophia unguium | true | Inferred relationship | Existential restriction modifier |  |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Occurrence | Congenital | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Finding site | Ectoderm structure | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Associated morphology | Dysplasia | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Pathological process | Pathological developmental process | true | Inferred relationship | Existential restriction modifier | 1 |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Occurrence | Congenital | true | Inferred relationship | Existential restriction modifier | 4 |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Finding site | Hair structure | true | Inferred relationship | Existential restriction modifier | 4 |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Associated morphology | Absence | true | Inferred relationship | Existential restriction modifier | 4 |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Pathological process | Pathological developmental process | true | Inferred relationship | Existential restriction modifier | 4 |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Occurrence | Congenital | true | Inferred relationship | Existential restriction modifier | 5 |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Finding site | Nail unit structure | true | Inferred relationship | Existential restriction modifier | 5 |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Associated morphology | Dystrophy | true | Inferred relationship | Existential restriction modifier | 5 |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Pathological process | Pathological developmental process | true | Inferred relationship | Existential restriction modifier | 5 |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Finding site | Entire skin of palmar area of hand | true | Inferred relationship | Existential restriction modifier | 2 |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Associated morphology | Hyperkeratosis | true | Inferred relationship | Existential restriction modifier | 2 |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Finding site | Entire skin of sole of foot | true | Inferred relationship | Existential restriction modifier | 3 |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Associated morphology | Hyperkeratosis | true | Inferred relationship | Existential restriction modifier | 3 |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Finding site | Skin structure | true | Inferred relationship | Existential restriction modifier | 6 |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Associated morphology | Pigment alteration | true | Inferred relationship | Existential restriction modifier | 6 |  |