Level III: Prospective diagnostic study.

We report the case of a left superior pubic ramus osteochondroma occurring in a 29-year-old man. The patient consulted for a multiple exostoses disease revealed by a painful induration at the base of his penis. This induration was increasing in volume and causing discomfort during sexual intercourse and when sitting for a prolonged period of time. CT-scan examination showed a pedunculated osteochondroma of the left superior pubic ramus compressing the urethra. Surgical resection of the tumor confirmed the diagnosis of osteochondroma. At a 2-year follow-up delay, all symptoms had regressed with no evidence of recurrence.

This article describes a case of a 11-year-old boy with an osteochondroma of the peroneal head causing peroneal nerve palsy. Physical examination disclosed large exostoses palpated at the right fibular head. Neurological examination revealed paresis of the tibialis anterior, lateral peroneal, and extensor digitorum muscles with a muscle strength grade of 2. Electrophysiological studies confirmed denervation of the muscles supplied by the right peroneal nerve. Radiological examination showed an osteochondroma in the head of the right fibula. The patient underwent surgical decompression of the right peroneal nerve after resection of the bone tumor. At 36-month follow-up, there was a complete recovery of the deficits. Peroneal mononeuropathy in children is uncommon. Osteochondroma is a benign tumor consisting of projecting bone capped by cartilage. These tumors may be solitary or multiple and occur in hereditary multiple exostoses syndrome. The conjunction of this lesion with peroneal nerve palsy has been exceptionally reported for children, usually linked to hereditary multiple exostoses syndrome. Most peroneal nerve trauma occurs at the fibular head, where the common nerve has not yet divided into its deep and superficial peroneal nerve and where most peroneal nerve lesions, therefore, involve both branches, although motor deficits are more frequently involved than sensory ones. Surgical treatment should not be delayed because neurological improvement may be achieved if surgery is performed before severe neurological deficits become irreversible.

Intraosseous ganglion (IOG) cyst of the scaphoid is an infrequent cause of hand and wrist pain. Intraosseous ganglia located in the scaphoid have rarely been described in the literature. We report the case of a 30-year-old right-handed woman who presented with a more than 24-month history of progressive right-wrist pain. No history of trauma was reported.Conservative treatment with anti-inflammatory medications before referral was unsuccessful. Examination revealed a small palpable mass in the carpal navicular region with no limitation of normal wrist motion. An IOG cyst of the scaphoid was found on standard radiograph and CT-scan of the wrist. Treatment consisted in curettage of the cyst followed by packing of the defect with autologous cancellous bone graft harvested in the distal end of the radial metaphysis. Satisfactory functional recovery was achieved. The clinical, radiographic and therapeutic aspects of this rare condition are discussed by the authors.

No abstract