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Skyscape - USMLE® Question of the Week

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A 35-year-old male presents to the family physician for bilateral gynecomastia. He observed a progressive increase in his breast size starting 6 months ago. He is sexually active and denies any drug use. Physical examination reveals bilateral gynecomastia and tenderness. The genito-urinary examination shows a 1 cm nodule in the right testis. Otherwise, the examination is within normal limits. The laboratory report shows: LH 3 U/L, FSH 2 U/L, testosterone 270 ng/dl (Normal 3 -10 ng/dl), estradiol 115 pg/ml (Normal 20 - 60 pg/ml), beta HCG undetectable, AFP undetectable. Which is the most likely diagnosis?

A Leydig cell tumor
B Choriocarcinoma
C Teratoma
D Seminoma
E Endodermal sinus tumor


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iOS & Android Apps

980+ total questions*
1000+ total questions*
450 Questions, Ans and Rationales
First Aid for the USMLE Step 1
Includes Netters Anatomy Atlas
Anatomy Flash Cards
* In app purchase required

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Use the World’s most popular USMLE® medical review books content in your program. With Skyscape App’s, students can study Anytime-Anywhere. Tutors can view students progress on a web dashboard. Email us for a demo and bulk purchase options.