SUMMARY A 28‐year‐old male pseudohermaphrodite with gynaecomastia was raised as a
female until the age of 17 years, at which time he developed masculine features (deepening …

A patient with familial male pseudohermaphroditism was considered to be a normal female
up to the time of puberty. At puberty, she had normal breast development but there was …

A new case of testicular 17 ketosteroid reductase (17 KSR) deficiency without gynecomastia
was investigated. Δ 4 androstenedione (15.6 ng/ml) was ten times the normal range …

Abstract1 A 24 years old male with pseudohermaphroditism due to a deficiency in 17-
ketosteroid reductase activity is described. Plasma Δ4 is 21 times higher than normal for an …

To evaluate possible 17-ketosteroid reductase deficiency, we studied two sisters with
primary amenorrhea, hirsutism, clitoral enlargement and a 46, XY karyotype, who lacked …

Background 17-Ketosteroid reductase deficiency results in male pseudohermaphroditism
because conversion of the weak androgen androstenedione to the more potent androgen …

A 12.9 year‐old girl, genotypically 46, XY, and considered to have a testicular feminization
syndrome, developed signs of virilization and gynaecomastia. Very high androstenedione …

Abstract A 12 year old child (46, XY) with 17-ketosteroid reductase deficiency was
investigated. The patient, reared as a female, was first noted to have clitoromegaly at 10 …

We report a 14 year-old male with severe, long-lasting gynecomastia. Baseline serum
androstenedione levels were elevated compared to testosterone levels (330 ng/dl vs …

A patient with masculine pseudohermaphroditism was considered as a normal female until
puberty. At puberty she had normal breast development, primary amenorrhea and marked …