Soft-Tissue Swelling Around the Proximal Interphalangeal Joints Bilaterally—Diagnosis

Histopathologic analysis of the skin biopsy specimen showed increased dermal collagen (Figure 2) and increased mucin deposits (Figure 3).

Pachydermodactyly is a rare disorder first described by Bazex and Teillard¹ in 1973. To date, only about 60 cases of this benign condition have been reported worldwide. Female patients with the disorder have been described, although rarely²; it primarily occurs in young males, generally in adolescence or young adulthood.³