Skip to main content
UploadLanguage (EN)Support
BusinessMobileSocial MediaMarketingTechnologyArt & PhotosCareerDesignEducationPresentations & Public SpeakingGovernment & NonprofitHealthcareInternetLawLeadership & ManagementAutomotiveEngineeringSoftwareRecruiting & HRRetailSalesServicesScienceSmall Business & EntrepreneurshipFoodEnvironmentEconomy & FinanceData & AnalyticsInvestor RelationsSportsSpiritualNews & PoliticsTravelSelf ImprovementReal EstateEntertainment & HumorHealth & MedicineDevices & HardwareLifestyle
MedicoseAcademics, profile picture
Uploaded byMedicoseAcademics
7 views

Reproductive Pathology - I review by Medicose Academics

🧠 Explore Reproductive Pathology I with Dr. Sidra Arshad 🧠 Build a clear, exam-focused understanding of disorders of sex development, male reproductive pathology, gestational trophoblastic disease, and major complications of pregnancy. This lecture links chromosomal and hormonal abnormalities with clinical findings, tumor markers, pathology, maternal risks, and common examination scenarios. It supports undergraduate and postgraduate learning and preparation for USMLE, PLAB, FCPS, NEET PG, and other medical licensing or entrance examinations. 🎓 Speaker 🎓 Dr. Sidra Arshad Assistant Professor of Physiology Medicose Academics Dr. Sidra Arshad is a medical educator with expertise in physiology, reproductive sciences, pathology, and exam-focused teaching. Her lectures emphasize clinical correlations, high-yield comparisons, and structured revision for medical students and healthcare professionals. 🎯 Learning Objectives 🎯 By the end of this lecture, learners should be able to: • Explain genetic, gonadal, and phenotypic sex differentiation • Recognize major chromosomal disorders affecting sexual development • Differentiate true and pseudohermaphroditism • Explain androgen resistance and 5α-reductase deficiency • Recognize Kallmann syndrome and hypogonadotropic hypogonadism • Describe penile, testicular, and prostatic pathology • Compare major testicular tumors and their serum markers • Differentiate benign prostatic hyperplasia from prostatic carcinoma • Explain complete, partial, and invasive hydatidiform mole • Differentiate major causes of third-trimester bleeding • Recognize ectopic pregnancy and hypertensive disorders of pregnancy • Explain preeclampsia, eclampsia, and HELLP syndrome 🔬 Topics Covered 🔬 Disorders of sex development Turner syndrome Klinefelter syndrome True hermaphroditism Female pseudohermaphroditism Male pseudohermaphroditism Androgen resistance syndrome 5α-reductase deficiency Kallmann syndrome Penile squamous cell carcinoma Cryptorchidism Testicular germ cell tumors Seminoma Embryonal carcinoma Yolk sac tumor Choriocarcinoma Leydig cell tumor Benign prostatic hyperplasia Prostatic adenocarcinoma PSA and prostatic acid phosphatase Hydatidiform mole Placental abruption Placenta accreta spectrum Placenta previa Vasa previa Ectopic pregnancy Gestational hypertension Preeclampsia Eclampsia HELLP syndrome 📚 Why This Lecture Matters 📚 Reproductive pathology is frequently tested across pathology, physiology, obstetrics, gynecology, urology, pediatrics, and endocrinology. This lecture helps learners connect genotype, hormone levels, anatomical development, tumor markers, pregnancy symptoms, and placental abnormalities with the correct diagnosis. It supports clinical reasoning and rapid revision for undergraduate, postgraduate, and licensing examinations.

Health & Medicine◦
Related topics:
Prostate Cancer•Ectopic Pregnancy Info•
info@medicoseacademics.com 0310-7990649 Reproductive Pathology- I Dr. Sidra Arshad Assistant Professor Physiology
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 2 A quick revision of: 1. Disorders of sex development 2. Abnormalities of male reproductive system 3. Complications of pregnancy
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 3 Differences between males and females exist at three sex levels: 1. Genetic/chromosomal – presence or absence of Y chromosome 2. Gonadal – presence of either testes or ovaries 3. Phenotypic – external genitalia
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 4 Chromosomal Abnormality Features Gonadal Dysgenesis/ Ovarian Agenesis/ Turner Syndrome • Nondisjunction, XO chromosomal pattern, rudimentary or absent gonads, short stature, lymphedema, webbed neck, no sexual maturation at puberty, no Barr body • ↑LH, FSH, ↓ estrogen Seminiferous Tubule Dysgenesis/Klinefelter Syndrome • Nondisjunction, XXY pattern is common, genitalia of normal male, abnormal seminiferous tubules, testicular atrophy, mental retardation • XXX "superfemales" pattern is less severe • YO combination is lethal • ↑ FSH, LH and estrogen • Barr body present Down Syndrome Nondisjunction of chromosome 21, trisomy 21, physical growth delay, mild to moderate intellectual disability, cardiac anomalies, characteristic facial features True Hermaphroditism • Example of mosaicism, XX/XY mosaicism and other patterns • Individual has both ovaries and testes
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 5 Hormonal Disorders • Chromosomal sex is normal and so is the gonadal sex, however, phenotypic sex is abnormal • Manifests as pseudohermaphrodotism • A pseudohermaphrodite is an individual with the genetic constitution and gonads of one sex and the genitalia of the other
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 6 Female Pseudohermaphrodite Mechanism Congenital virilizing adrenal hyperplasia of fetus Excess androgens  virilization Maternal androgen excess Virilizing ovarian tumor Iatrogenic: Treatment with androgens or certain synthetic progestational drugs Male Pseudohermaphrodite Features Androgen resistance • Male hormones cannot exert their full effects on the tissues • One form of androgen resistance is a 5α-reductase deficiency  no DHT • When the loss of receptor function is complete, the testicular feminizing syndrome, now known as complete androgen resistance syndrome, results Defective testicular development Because the testes also secrete MIS, genetic males with defective testes have female internal genitalia Congenital 17α-hydroxylase deficiency Reduced testosterone formation Congenital adrenal hyperplasia due to blockade of pregnenolone formation
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 7 5α-reductase Deficiency • Autosomal recessive condition • Limited to genetic males with 46,XY • Inability to convert testosterone to DHT • Ambiguous genitalia present until puberty • Increased testosterone during puberty leads to masculinization and increased growth of external genitalia • Testosterone and estrogen levels are normal • LH is normal or increased • Internal genitalia are normal Kallmann Syndrome • A form of hypogonadotropic hypogonadism • Failure to complete puberty • Caused by defective migration of GnRH-releasing neurons, leading to the failure of GnRH-releasing olfactory bulbs to develop • Results in decreased synthesis of GnRH in the hypothalamus • Common symptoms include hyposmia/anosmia (reduced or absent sense of smell) • Decreased levels of GnRH, FSH, LH, and testosterone • Infertility is common, with low sperm count in males and amenorrhea (absence of menstruation) in females
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 8
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 9 Penile Carcinoma • SCC • Association with HPV, lack of circumcision • Precursor in situ lesion: • Bowen disease – penile shaft, leukoplakia • Erythroplasia of Queyrat – glans penis, erythroplakia
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 10 Cryptorchidism: • Failure of testes to descend from the abdomen into the scrotum at or near the time of the birth of the fetus • Descent occurs in the last 2-3 months of gestation under the influence of fetal testosterone • Descent is incomplete on one or, less commonly, both sides in 10% of newborn males, with the testes remaining in the abdominal cavity or inguinal canal
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 11 • Even the few degrees’ higher temperature in the abdomen than in the scrotum is sufficient to cause degeneration of the tubular epithelium and, consequently, to cause sterility • If testes are normally developed, surgical placement of testicles into the scrotum can be carried out – orchiopexy • Gonadotropic hormone treatment speeds descent in some cases • High incidence of malignant tumors in undescended testes compared to scrotal testes
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 12 Testicular Tumor Type Characteristics Incidence/Prevalence Serum Tumor Markers Prognosis Seminoma • Malignant germ cell tumor • Analogous to dysgerminoma (ovary tumor) • Most frequent germ cell tumor (40%) • Peak incidence in mid- 30s age group Sometimes increased hCG • Very radiosensitive; often curable • Even with abdominal lymph node metastasis Embryonal Carcinoma • Malignant germ cell tumor • Analogous to a similar tumor in the ovary • Second most common germ cell tumor (20%- 30%) • Presenting conditions may include pain or metastasis Often increased hCG Worse prognosis compared to seminoma Endodermal Sinus Tumor • Malignant germ cell tumor • Analogous to endodermal sinus tumor of the ovary Most common testicular tumor in infancy and early childhood Increase in serum α- fetoprotein (AFP) Associated with hepatocellular carcinoma Teratoma • Germ cell tumor derived from two or more embryonic layers • Contains multiple tissue types (cartilage islands, ciliated epithelium, liver cells, etc.) Often malignant - Prognosis varies with subtype Yolk sac tumor • Yellow, mucinous • Schiller – Duval bodies (glomeruli) Most common tumor in boys < 3 years AFP Aggressive, analogous to ovarian yolk sac tumor
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 13 Testicular Tumor Type Characteristics Incidence/Prevalence Serum Tumor Markers Prognosis Choriocarcinoma • Malignant germ cell tumor • Analogous to choriocarcinoma of the ovary • Incidence peaks in second to third decades • Histologic characteristics include syncytiotrophoblasts and cytotrophoblasts Increase in serum hCG Can occur as part of other germ cell tumors Mixed Germ Cell Tumors • Consist of varying combinations of germ cell tumor types • Tumors can be teratocarcinoma, combining teratoma and embryonal carcinoma (poor prognosis) • Other combinations include teratoma, embryonal carcinoma, and seminoma Prognosis determined by the least mature element AFP, hCG, LDH Good Leydig Cell Tumor Non-germ cell tumor derived from testicular stroma Most often benign None Associated with precocious puberty (children) and gynecomastia (adults) Lymphoma is the most common testicular tumor in older adults
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 14 Benign Prostatic Hyperplasia (BPH) • BPH is almost universal in older men • BPH and prostate cancer are unrelated conditions but can coexist • BPH is directly related to the action of dihydrotestosterone (DHT) a metabolite of testosterone, and inhibiting the enzyme 5a- reductase, type 2, is one approach to its treatment • Age-related increase in estrogens may also contribute to BPH by promoting the expression of DHT receptors • BPH is characterized by hyperplasia (increased cell growth) of both glandular and fibromuscular stromal elements • Grossly, BPH causes a rubbery, nodular enlargement of the prostate gland, mainly affecting the inner glandular zones, such as periurethral and transitional zones • The urethra is compressed from side to side, resulting in a vertical slit appearance • BPH leads to urinary obstruction, manifesting as:  Frequency, dysuria, hesitancy, and urinary tract infections  Incomplete bladder emptying  Distention and muscular hypertrophy of the bladder, and in prolonged cases, characteristic trabeculae (bands of enlarged bladder muscle) may form  Hydroureter and hydronephrosis
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 15 Prostatic Adenocarcinoma • Prostate cancer is predominantly found in older individuals • From posterior lobe mostly • The tumor's behavior can vary from slow-growing (indolent) to aggressive, with the Gleason grading system used to predict aggressiveness based on differentiation • Diagnosis is commonly made through rectal examination • Early-stage prostate cancer is associated with an increase in serum prostate- specific antigen (PSA)
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 16 • Increased serum prostatic acid phosphatase may indicate the tumor has penetrated the capsule and invaded adjacent tissues • Prostate adenocarcinoma often progresses to bony osteoblastic metastasis, which can be the presenting sign, increased ALP • In cases of disseminated prostate cancer, endocrine therapy may be effective, as tumor growth is partially influenced by androgens • PSA > 10 ng/ml – highly predictive of carcinoma • Between 4-10 ng/ml – overlap b/w early carcinoma and BPS • ↑ bound-PSA – carcinoma • PSA doubling time ∝ 1/aggressiveness of the tumor
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 17 Hydatidiform mole • Hydatidiform mole (molar pregnancy) is a tumor of placental trophoblastic tissue • Complete mole results from a fertilized ovum with no chromosomal material, with all genetic material coming from sperm  no embryo • Partial mole results from fertilization of an ovum by two sperms, resulting in a triploid cell (69, XXY)  embryo develops for a few weeks • Invasive mole is a mole that invades the uterine wall • Symptoms include excessive uterine enlargement, vaginal bleeding, passage of grape-like soft tissue, and elevated beta-human chorionic gonadotropin (β- hCG) levels • Microscopic features include edematous chorionic villi, trophoblast proliferation, and possible fetal tissue in partial mole • Diagnosis is made using ultrasound (U/S) • Treatment involves endometrial curettage and monitoring β-hCG levels
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 18
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 19 Pregnancy Complications Abruptio placentae • Premature separation of placenta from uterine wall before delivery • Risk factors: trauma, smoking, hypertension, preeclampsia, cocaine abuse • Presentation: abrupt, painful bleeding in third trimester; may lead to DIC, maternal shock, and fetal distress • Life-threatening for both mother and fetus Morbidly adherent placenta • Defective decidual layer leads to abnormal attachment and separation after delivery • Risk factors: prior C-section or uterine surgery, inflammation, placenta previa, advanced maternal age, multiparity • Three types based on depth of penetration: • Placenta accreta: attaches to myometrium without penetrating it; most common type • Placenta increta: penetrates into myometrium • Placenta percreta: penetrates through myometrium and into uterine serosa; may attach to rectum or bladder • Presentation: often detected on ultrasound before delivery • No separation of placenta after delivery leads to postpartum bleeding and can cause Sheehan syndrome
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 20 Placenta previa • Placenta attaches to the lower uterine segment over or very close to the internal cervical os • Risk factors: multiparity, prior C-section • Associated with painless third-trimester bleeding • A "preview" of the placenta is visible through the cervix Vasa previa • Fetal blood vessels run over or very close to the cervical os • May lead to vessel rupture, severe bleeding, and fetal death • Presents with the triad of membrane rupture + painless vaginal bleeding + fetal bradycardia (heart rate < 110 beats/min) • Emergency C-section is usually necessary
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 21 Ectopic Pregnancy
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 22 Hypertension in Pregnancy Condition Definition and Features Incidence and Risk Factors Complications Gestational Hypertension • BP > 140/90 mm Hg after 20th week of gestation • Treatment involves delivering at 37–39 weeks No pre-existing hypertension No proteinuria or end-organ damage Preeclampsia • New-onset hypertension with proteinuria or end-organ dysfunction after 20th week of gestation • Incidence higher in patients with pre- existing hypertension, diabetes, chronic renal disease, autoimmune disorders (eg, antiphospholipid antibody syndrome) • Abnormal placental spiral arteries leading to endothelial dysfunction, vasoconstriction, and ischemia • Complications may lead to eclampsia (+ seizures) and/or HELLP syndrome Placental abruption, coagulopathy, renal failure, pulmonary edema, uteroplacental insufficiency. Eclampsia Preeclampsia with maternal seizures Maternal death due to stroke, intracranial hemorrhage, or ARDS. HELLP Syndrome Hemolysis, Elevated Liver enzymes, low Platelets • A manifestation of severe preeclampsia • Blood smear shows schistocytes Can lead to DIC and hepatic subcapsular hematomas.
info@medicoseacademics.com 0310-7990649 Dr. Sidra Arshad, Asst. Prof. Physiology 23 Thank you. Any questions?