Concomitant composite adrenal pheochromocytoma, multiple gastric stromal tumours and pseudohermaphrodism in a patient with von Recklinghausen's disease

Although pheochromocytoma occurs in 1% of patients with von Recklinghausen's disease, composite tumors in this syndrome are much rarer, with isolated case reports in the literature. Most gastrointestinal stromal tumors (GISTs) are solitary and sporadic. Multiple GISTs however, are associated with clinical syndromes particularly von Recklinghausen's disease. We believe this is the first report of composite adrenal pheochromocytoma and multiple GISTs occurring in an 82 year old woman with neurofibromatosis type 1 (NF1), manifested by clitoral and subcutaneous neurofibromas, epilepsy and Lisch nodules. The extreme clitoromegaly raised concerns of pseudohermaphrodism at presentation.