Bilateral ovarian steroid cell tumor in congenital adrenal hyperplasia due to classic 11beta-hydroxylase deficiency.

An 8.7 year-old patient, raised as a boy, presented with premature appearance of pubic hair and accelerated growth since 2 years of age and ambiguous genitalia noted at birth. There was first degree consanguinity between his parents. A similar problem was reported in a cousin. Examination of the external genitalia revealed complete scrotal fusion, a 5 cm long phallus, urogenital sinus at base of phallus with no gonads palpable. Pigmentation was increased. His blood pressure was 150/100 mm Hg. Pubic and axillary hair were at stage 3. Bone age was 17 years. Adrenal ultrasound was normal. Pelvic ultrasound showed relatively enlarged uterus and ovaries with normal echogenicity. Karyotype was 46,XX. Hormone profile was compatible with congenital adrenal hyperplasia (CAH) due to 11beta-hydroxylase deficiency (11-deoxycortisol: 11.5 nmol/l [400 ng/dl] [normal: 0.6-4.5 nmol/l [20-155 ng/ml]], androstenedione: 17.4 nmol/l [5 ng/ml] [normal: 0.1-1.2 nmol/l [0.03-0.35 ng/ml]]). Prednisolone and antihypertensive drugs were started. The patient underwent bilateral salpingo-oophorectomy and hysterectomy at 9.1 years. Histopathological examination of both ovaries revealed steroid cell tumor. The type of the tumor was "not otherwise specified" (NOS). Basal hormone levels and ACTH test performed 10 months after the operation and 7 days off treatment reconfirmed the diagnosis of 11beta-hydroxylase deficiency. Steroid cell tumors are extremely rare forms of steroid hormone-reducing ovarian neoplasms in childhood and may coexist with or imitate virilizing CAH.