The role of Mullerian inhibiting substance in the evaluation of phenotypic female patients with mild degrees of virilization
Department of Pediatrics
Medical Subject Headings
Adolescent; Anti-Mullerian Hormone; Biological Markers; Child; Child, Preschool; Clitoris; Female; *Glycoproteins; Gonadal Dysgenesis; Growth Inhibitors; Humans; Infant; Infant, Newborn; Karyotyping; Phenotype; Severity of Illness Index; Testicular Hormones; Virilism
Cell Biology | Developmental Biology | Endocrinology
Mullerian inhibiting substance (MIS) is a sexually dimorphic gonadal hormone with proven efficacy in the evaluation of boys with cryptorchidism and children with intersex conditions. We examined the role of MIS determination in the evaluation of 65 phenotypic females with mild virilization. Among the 28 subjects with MIS values elevated above the normal female range, all had abnormal gonadal tissue: ovotestes in 11, testes in 7, dysgenetic gonads in 7, and MIS-secreting ovarian tumors in 3. Among the 37 children with serum MIS in the normal female range, 19 had detectable MIS and 18 had unmeasurable MIS. In the former group with measurable but normal female MIS values, 16 subjects had ovaries, 1 had an ovotestis, and 1 had dysgenetic gonads containing testicular elements. Of 18 children with undetectable MIS values, 16 had ovaries and 2 had ovarian dysgenesis. In this study, elevation of serum MIS above the normal female range was consistently associated with the presence of testicular tissue or MIS- secreting tumors, mandating additional evaluation and surgical exploration. A value within the normal female range in a virilized patient did not exclude dysgenetic testicular tissue or ovotestis, whereas undetectable values were consistent with the absence of testicular tissue.
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Citation: J Clin Endocrinol Metab. 2003 Feb;88(2):787-92. Link to article on publisher's site
Misra, Madhusmita; MacLaughlin, David T.; Donahoe, Patricia K.; and Lee, Mary M., "The role of Mullerian inhibiting substance in the evaluation of phenotypic female patients with mild degrees of virilization" (2003). Lee Lab Publications. 46.