Possible guarded prognosis for childhood-onset spontaneous posterior interosseous nerve palsy: two case reports

lungs and sputum smear microscopy were negative. Antituberculous therapy with Rifampicin, Isoniazid, Pyrazinamide and Ethambutol was given for 6 months. Four years after surgery, there was no evidence of recurrence. The patient was symptom free and could perform all daily living activities without discomfort. Grip and pinch strengths were 85% and 90% of the contralateral side, respectively. When facing a growing cystic mass containing multiple rice or melon-seed bodies in the hand, one should always suspect the possibility of extrapulmonary tuberculosis. Negative chest radiographs or a negative skin tuberculin test do not exclude the presence of tenosynovial tuberculosis (Weber et al., 2015). Intraoperative cultures for M. tuberculosis are mandatory (Panigrahi et al., 2021). Direct microscopic examination is rarely positive (Weber et al., 2015). Treatment includes radical resection of the lesion and prolonged antituberculous chemotherapy (Bayaram et al., 2016). Concurrent nerve compressions must be adequately addressed.