Histologic classification and tumor markers According to the World Health Organization (WHO) classification, germ cell tumors are classified into the following seven categories: asexual cell tumors, yolk sac tumors, embryonal…
Extracranial germ cell tumors in children are a clinically frequent pediatric solid tumor that originates from pluripotent germ cells, includes one to three germinal structures, and often contains heterologous tissue…
The human pineal gland is shaped like a pine cone, with a length, width and thickness of about 7 mm × 5 mm × 4 mm and a mass of…
Typical case: A 13-year-old female child was admitted to the hospital with the chief complaint of “intermittent headache with blurred vision in both eyes for 1 week”. History: The patient had…
Ejaculation is accompanied by a strong feeling of pleasure, which is called sexual excitement to reach orgasm. If you compare the process of ejaculation to riding a roller coaster, the…
Patient: When my beloved was 26 weeks pregnant, an ultrasound was performed and a fetal pelvic mass of 2.1*1.4*2.4cm was detected. The baby was born on June 28th as a…