| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Palmoplantar keratoderma transgrediens | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Acroerythrokeratoderma | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Progressive palmoplantar keratoderma of Greither | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Epidermolytic palmoplantar keratoderma of Vorner | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Diffuse palmoplantar keratoderma of Thost-Unna | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Hereditary palmoplantar keratoderma Gamborg Nielsen type | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Autosomal dominant diffuse palmoplantar keratoderma Norrbotten type | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Haim Munk syndrome | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Diffuse palmoplantar keratoderma and acrocyanosis syndrome | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Cerebral dysgenesis, neuropathy, ichthyosis, palmoplantar keratoderma syndrome | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Palmoplantar keratoderma, 46,XX sex reversal, predisposition to squamous cell carcinoma syndrome | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Palmoplantar keratoderma Nagashima type | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Palmoplantar keratoderma with clinodactyly syndrome | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Curly hair, acral keratoderma, caries syndrome | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Hypohidrosis, enamel hypoplasia, palmoplantar keratoderma, intellectual disability syndrome | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Corneal intraepithelial dyskeratosis, palmoplantar hyperkeratosis, laryngeal dyskeratosis syndrome | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Diffuse palmoplantar keratoderma with painful fissures | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Skin fragility, wooly hair, palmoplantar keratoderma syndrome | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Papillon-Lefèvre syndrome | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Keratosis linearis, ichthyosis congenita, sclerosing keratoderma syndrome | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Palmoplantar hyperkeratosis sclerodactyly syndrome | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Knuckle pads, leukonychia, sensorineural deafness, palmoplantar hyperkeratosis syndrome | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Keratin 1-related diffuse nonepidermolytic palmoplantar keratoderma | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome | Is a | True | Hereditary diffuse palmoplantar keratoderma | Inferred relationship | Existential restriction modifier |  |