Abstract A 27 year old man presented with multiple papules, nodules, and hyperpigmented spots on the body, which he had had since early childhood. In addition, he had a deformity of the right forearm. Examination revealed multiple large sized café-au-lait macules, axillary freckling, and soft cutaneous neurofibromas (mollusca fibrosa). The right forearm was grossly shortened with a length of only 12 cm (fig 1). It presented a globular appearance and on palpation the forearm bones had a break in their continuity. There was hypermobility at the wrist and elbow joints in addition to abnormal movements through the forearm. The left forearm was 28 cm in length and bones were normal. Radiological examination revealed pseudoarthrosis in the mid-part of right forearm involving both the radius and ulna, dislocation of humeroulnar joint, radioulnar diastasis, and a decrease in the bone density (fig 2). On ophthalmological examination, there were multiple bilateral Lisch nodules. A diagnosis of neurofibromatosis type-1 and pseudoarthrosis as a complication was thus established.