11 results
ACTH
LH
Cholesterol
cholesterol desmolase
Pregnenolone
17a-hydroxylase 17 Hydroxyregnenolone
17,20-lyase
3B-hydroxysteroid
dehydrogenase
3B-hydroxysteroid
dehydrogenase
17a-hydroxylase
#Progesterone
17-Hydroxyprogesterone
17,20-lyase
21ß-hydroxylase
21ß-hydroxylase
11-Deoxycorticosterone
11-Deoxycortisol
11ß-hydroxylase
11ß-hydroxylase
#Cortisol
#Dehydroepiandrosterone
#DHEA
3ß-hydroxysteroid
dehydrogenase
个
#Androstenedione
#17B-hydroxysteroid
#dehydrogenase
#Testosterone
#aromatase
#FSH
#Estradiol
#5a reductase
#Corticosterone
aldosterone synthase
#Aldosterone
Angiotensin ||
#Dihydrotestosterone
(DHT)
Dehydroepiandrosterone #DHEA ... #Estradiol #5a
Steroid Synthesis Pathway

(OH, hydroxy; HSD, hydroxysteroid dehydrogenase; DHEA, dehydroepiandrosterone; pink, common enzymes affecting CAH, purple –
dehydrogenase; DHEA
A diagnostic approach to secondary amenorrhea. (DHEA-S = dehydroepiandrosterone sulfate; FSH = follicle-stimulating hormone; LH =
(DHEA-S = dehydroepiandrosterone
Benign Adrenal Mass - Differential Diagnosis Algorithm
Hyperplasia - Often Bilateral
 • Congenital Adrenal Hyperplasia
 • ACTH
Hirsutism • High DHEAS ... • Low DHEAS ... Mass • Normal DHEAS
Hirsutism & Virilization - Differential Diagnosis Algorithm
ADRENAL EXCESS
Ovarian
 • Polycystic Ovarian Syndrome
 • Hyperthecosis
 • Tumor
Adrenal
• Testosterone DHEA
Malignant Adrenal Mass - Differential Diagnosis Algorithm
Suggestive of Malignancy: Inhomogenous Density, Delay in CT Contrast Washout
Hirsutism • High DHEAS ... Carcinoma) • Normal DHEAS
Primary Adrenal Insufficiency
Addison's Disease - Damage of the adrenal glands with lack of cortisol, androgens and
present) ↓ DHEA ... Labs: ↓ Serum DHEAS
Hirsutism - Differential Diagnosis Algorithm
RAPID ONSET
Medications
 • Steroids
 • Danazol
 • Progestin Containing Contraceptives
Increased Serum Testosterone
Increased Serum DHEAS
Prescription Fish Oils
Prescription fish oils, Lovaza, and Vascepa, are commonly used for treatment of hypertriglyceridemia (TG
LDL due to the DHA
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
Prolactin, FSH, LH, DHEAS