Objective: To report a rare case of virilizing adrenocortical carcinoma presenting with peripheral precocious puberty.Methods: we present the initial clinical findings, laboratory tests and medical imaging findings with surgical procedure, tumor staging and histopathological study. Post-operative follows up schedule and management. In addition a brief review literature Results: A 8.5 year old boy presented with pubarche and other virilizing features that dated back to one year. Physical examination revealed; height 121 cm, weight 30 kg, Tanner Stages for pubic hair, penile length and testes volume were IV, IV, ІI respectively. Laboratory findings gonadotropins were low, testosterone high so the precocious puberty was gonadotropins independent ( peripheral) either adrenal or testicular, so abdominal ultrasonography performed that showed well defined mass at right suprarenal region (49×48) mm., and abdominal magnetic resonance demonstrated a mass at right adrenal gland region measures (5×5) cm then dynamic computed tomography of adrenal glands revealed: right adrenal mass (5×4x4) cm well defined. Scrotal ultrasonography revealed both testes slightly enlarged in size with normal echogenicity. Based on the above data the interpretation was adrenal androgen-secreting tumor either adenoma or carcinoma. Therefore, the patient underwent right open adrenalectomy: grossly; encapsulated mass, no invasion to surroundings, size (5×4x4). Histopathology study was consistent with adrenocortical carcinoma confirmed by Immunohistochemistry. Postoperatively: glucocorticoid replacement therapy was initiated, and he was scheduled for follow -up examination.
Conclusion:This case illustrates the rare occurrence of adrenocortical carcinoma in this age group and to our knowledge is the first case report in Iraq.