Any primary hypertrophic osteoarthropathy in which the cause of the disease is a mutation in the HPGD gene. The disease is hypertrophic osteoarthropathy, primary, autosomal recessive, 1 (Monarch Disease Ontology entry MONDO_0024546). Also known as: HPGD primary hypertrophic osteoarthropathy, hypertrophic osteoarthropathy, primary, autosomal recessive 1, primary hypertrophic osteoarthropathy caused by mutation in HPGD.