Reproductive System Disorders

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Reproductive

System

Disorders

Overview

• Male Infertility

• Benign Prostatic Hypertrophy

• Prostate Cancer

• Female Infertility

• Endometriosis

• Pelvic Inflammatory Disease

• Ovarian Cysts

• Cancer

– Breast

– Cervical

– Uterine

Male Infertility

• Can be solely male, solely female, or both

• Considered infertile after one year of unprotected intercourse fails to produce a pregnancy

• Male problems include

– Changes is sperm or semen

– Hormonal abnormalities

• Pituitary disorders or testicular problems

– Physical obstruction of sperm passageways

• Congenital or scar tissue from injury

• Semen analysis

– Assess specific characteristics

• Number, motility, normality

Benign Prostatic Hypertrophy

(BPH) —Pathophysiology

• Common in older men; varies from mild to severe

• Change is actually hyperplasia of prostate

– Nodules form around urethra

– Result of imbalance between estrogen and testosterone

• No connection w/ prostate cancer

• Rectal exams reveals enlarged gland

• Incomplete emptying of bladder leads to infections

• Continued obstruction leads to distended bladder, dilated ureters, renal damage

– If significant, surgery required

BPH —Signs and Symptoms

• Initial signs

– Obstruction of urine flow

• Hesitancy, dribbling, decreased force of urine stream

• Incomplete bladder emptying

– Frequency, nocturia, recurrent UTIs

BPH —Treatment

• Only small amount require intervention

– Surgery when obstruction severe

• Drugs (Flomax) used to promote blood flow helpful when surgery not required

Prostate Cancer

• Common in men older than 50; ranks high as cause of cancer death

• 3 rd leading cause of death from cancer

Prostate Cancer —Pathophysiology

• Most are adenocarcinomas from tissue near surface of gland

– BPH arises from center of gland

– Many are androgen dependent

• Tumors vary in degree of cellular differentiation

– The more undifferentiated, the more aggressive and the faster they grow and spread

• Metastasis to bone occurs early

– Spine, pelvis, ribs, femur

• Cancer has typically spread before diagnosis

• Staging based on 4 categories:

– A  small, nonpalpable, encapsulated

– B  palpable confined to prostate

– C  extended beyond prostate

– D  presence of distant metastases

Stages

Prostate Cancer —Etiology

• Cause not determined

– Genetic, environmental, hormonal factors

• Common in North American and northern

Europe

• Incidence higher in black population than white

– Genetic factor?

• Testosterone receptors found on cancer cells

Prostate Cancer —Signs and

Symptoms

• Hard nodule in periphery of gland

– Detected by rectal exam

• No early urethral obstruction

– b/c of location

– As tumor develops, some obstruction occurs

• Hesitancy, decreased stream, urinary frequency, bladder infection

Prostate Cancer —Diagnostic Tests

• 2 helpful serum markers

– Prostate-specfic Antigen (PSA)

• Useful screening tool for early detection

– Prostatic acid phosphatase

• elevated when metastatic cancer present

• Ultrasound and biopsy confirms

Prostate Cancer —Treatment

• Surgery and radiation

• Risk of impotence or incontinence

• When tumor androgen sensitive:

– orchiectomy (removal of testes) or

– Antitestosterone drug therapy

• 5 yr survival rate is 85-90%

Female Infertility

• Associated w/ hormonal imbalances

– Result from altered function of hypothalamus, anterior pituitary, or ovaries

– Typically after long use of birth control pill

• Structural abnormalities

– Small or bicornuate uterus

• Obstruction of fallopian tubes

– Scar tissue or endometriosis

• Access of viable sperm

– Change in vaginal pH

• Due to infection or douches

– Excessively thick cervical mucus

– Development of antibodies in female to particular sperm

• Smoking by male or female

Female Infertility

• Broad range of tests avail

– General health status checked 1 st

– Pelvic examinations, ultrasound, CT scans check for structural abnormalities

– Tubal insufflation (gas/pressure measurement) or hysterosalpingogram (X-ray w/ contrast material) used to check tubes

– Blood tests throughout cycle to check hormone levels

Normal Laparoscopy

Endometriosis

• Presence of endometrial tissue outside uterus

(ectopic)

– Found on ovaries, ligaments, colon, sometimes lungs

• Responds to cyclic hormonal variations

– Grows and secretes then degenerates, sheds and bleeds

• What is the problem? (Where does it go?)

– Blood irritating to tissues = inflammation and pain

• Recurs w/ e/ cycle w/ eventual fibrous tissue

– Causes adhesions and obstruction

• Diagnosis confirmed w/ laparoscopy

Endometriosis

• Infertility results from

– Adhesions pulling uterus out of normal position

– Blockage of fallopian tubes

• “chocolate cyst” develops on ovary

– Fibrous sac containing old brown blood

• Primary manifestations

– Dysmenorrhea

• More severe e/ month

– Painful intercourse if vagina and supporting ligaments affected by adhesions

Endometriosis

• Cause not established

– Migration of endometrial tissue up thru tubes to peritoneal cavity during menstruation, development from embryonic tissue at other sites, spread thru blood or lymph, transplantation during surgery (Csection) all possibilities

• Treatment

– Hormonal suppression of endometrial tissue

– Surgical removal of endometrial tissue

• Pregnancy and lactation delay further damage and alleviate symptoms

Endometriosis

Pelvic Inflammatory Disease (PID)

• Common infection of reproductive tract

– Particularly fallopian tubes and ovaries

• Includes:

– Cervicitis (cervix)

– Endometritis (uterus)

– Salpingitis (fallopian tubes)

– Oophoritis (ovaries)

• Infection either cute or chronic

• Short-term concerns: peritonitis, pelvic abscess

• Long-term concerns: infertility, high risk of ectopic pregnancy

PID —Pathophysiology

• Usually originates as vaginitis or cervicitis

– Often involves several causative bacteria

• Uterus  fallopian tube

– Edema, fills w/ purulent exudate

• Obstructs tube and restricts drainage into uterus

• Exudate drips out of fimbriae onto ovaries and surrounding tissue

– Peritoneal membrane attempts to localize but peritonitis may develop

» Abscesses may form; life-threatening

» Cause septic shock

• Adhesions affect tubes and ovaries

– Lead to infertility and ectopic pregnancies

PID

PID —Etiology

• Arise from sexually transmitted diseases

– Gonorrhea

– Chlamydiosis

• Prior episodes of vaginitis or cervicitis precedes development

• Infection acute during or after menses

– Endometrium more vulnerable

• Can also result from IUD or other contaminated instrument

– Can perforate wall and lead to inflammation and infection

PID —Signs and Symptoms

• Lower abdominal pain (1 st indication)

– Sudden and severe or gradually increasing in intensity

• Tenderness during pelvic exams

• Purulent discharge at cervix

• Dysuria

• Fever and leukocytosis can occur

– Depends on causative organism

PID —Treatment

• Aggressive antibiotics

– Cefoxitin, doxycycline

• Recurrent infections common

– Sex partners should be treated as well

• Follow-up appt to ensure eradication

Benign Tumors: Ovarian Cysts

• Variety of types

– Follicular and corpus luteal cysts common

• Develop unilaterally in both ruptured and unruptured follicles

• Usually multiple fluid-filled sacs under serosa that covers ovary

• May become large enough to cause discomfort, urinary retention, or menstrual irreg

– Bleeding if ruptures

• Cause even more serious inflammation

– Risk of torsion of the ovary

• Ultrasound and laparoscopy to ID cyst

Ovarian Cysts

Malignant Tumors: Carcinoma of the Breast —Pathophysiology

• Develop in upper outer quadrant of breast in ½ of the cases

• Central portion of the breast is also common

• Most tumors are unilateral

• Different types; majority arise from ductal epithelium

– Infiltrates surrounding tissue and adheres to skin

• Causes dimpling

• Tumor becomes fixed when adheres to muscle or fascia of chest wall

Carcinoma of the Breast —

Pathophysiology

• Malignant cells spread at early state

– 1 st to close lymph nodes

• Axillary nodes

– In most cases, several nodes infected at time of diagnosis

• metastasizes quickly to lungs, brain, bone, liver

• Tumor cells graded on basis of degree of differentiation or anaplasia

– Tumor then staged based on size of primary tumor, # lymph nodes, presence of metastases

• Presence of estrogen and progesterone receptors

– Major factor in determining how to treat the pt’s cancer

Breast Cancer

Breast Cancer —Etiology

• Major cause of death in women

• Incidence continues to increase after age of 20

• Strong genetic predisposition

– identification of specific genes related to cancer

• Hormones also a factor

– Specifically exposure to high estrogen levels

• Long period of regular menstrual cycles (early menarche to late menopause)

• No kids (nulliparily)

• Delay of 1 st pregnancy

– Role of exogenous estrogen (birth control pills, supplements) still controversial

Breast Cancer —Signs and

Symptoms

• Initial sign is single, hard, painless nodule

– Mass is freely movable in early stage

• Becomes fixed

• Advanced signs

– Fixed nodule

– Dimpling of skin

– Discharge from nipple

– Change in breast contour

• Biopsy confirms diagnosis of malignancy

Breast Cancer —Treatment

• Surgery, radiation, chemo

• Surgery

– Lumpectomy

• Preferred; removal of tumor

– Mastectomy

• Sometimes necessary

– Some lymph nodes removed as well

• # removed depends on the spread of the tumor cells

– Impairs draining of lymph; swelling and stiffness of arm common

• Chemo and radiation

– Useful for eradicating undetected micrometastases

Breast Cancer —Treatment

• If responsive to hormones, removal of hormone stimulation

– Premenopausal women: ovaries removed

– Postmenopausal women: hormone-blocking agent

• Prognosis

– Relatively good if nodes not involved

– As # nodes increases, prognosis becomes more negative

– May recur years later

• Longer the period w/o recurrence, better the chances

• BSE if over 20 yrs.

• Mammography routine screening tool

– Detect lesions before they become palpable or if they are deep in the breast tissue

Carcinoma of the Cervix

• # deaths has decreased due to Pap smear

– Screening and early diagnosis while cancer in situ

• However, # cases of carcinoma in situ has increased in the US

– Avg age of in situ onset is 35

– Invasive carcinoma manifests at 45

– Age range dropping to younger women

Cervical Cancer —Pathophysiology

• Early changes in cervical epithelial tissue consist of dysplasia

– Mild then becomes severe (takes 10 yrs)

– Occurs at junction of columnar cells and squamous cells of external os of cervix

• Cervical intraepithelial neoplasia (CIN) graded from I to

III

– Based on amount of dysplasia and cell differentiation

– Grade III

• Carcinoma in situ

• Many disorganized, undifferentiated, abnormal cells present (severe dysplasia)

– Takes 10 yrs from mild to carcinoma in situ so plenty of chances to detect

Cervical Cancer —Pathophysiology

• Carcinoma in situ is noninvasive stage

• Leads to invasive stage

• Invasive has varying characteristics

– Protruding nodular mass or ulceration

– Eventually all characteristics present in the lesion

• Carcinoma spreads in all directions

– Adjacent tissues (uterus and vagina); bladder, rectum, ligaments

• Metastases to lymph nodes occur rarely or in late stage

• Staging:

– 0: carcinoma in situ

– I: cancer restricted to cervix

– II to IV: further spread to surrounding tissues

Normal Cervix; Cancerous Cervix

Cervical Cancer —Etiology

• Strongly linked to STDs

– Herpes simplex virus type 2 (HSV-2)

– Human papillomavirus (HPV)

• Virus exerts direct effects on host cell or may cause antibody rxn

– Increased antibodies have been assoc w/ increasing dysplasia

• High risk factors

– Multiple sex partners

– Promiscuous partners

– Sexual intercourse in early teen years

– Pt history of STDs

• Environmental factors such as smoking can predispose women

Cervical Cancer —Signs and

Symptoms

• Asymptomatic in early stage

– Can be detected by Pap test

• Invasive stage indicated by slight bleeding or spotting

• Anemia and wt loss can accompany

Cervical Cancer —Treatment

• Biopsy to confirm diagnosis

• Surgery and radiation to treat

• 5 yr survival rate 100% if carcinoma still in situ

– Prognosis for invasive depends on the extent of the spread of cancer cells

Carcinoma of the Uterus

(Endometrial Carcinoma)

• Common cancer in women older than 40

– Majority 55-65 yrs old

• Simple screening not available for this cancer

• Early indication is bleeding

– Significant sign in postmenopausal women

Uterine Cancer —Pathophysiology

• Majority are adenocarcinomas

– arise from glandular epithelium

• Malignant changes develop from endometrial hyperplasia

– Excessive estrogen stimulation major factor for hyperplasia

• Cancer is slow-growing

• May infiltrate uterine wall (thickened area) or may spread out to endometrial cavity

– Eventually tumor mass fills interior of uterus

• Expands thru wall into surrounding structures

Uterine Cancer —Pathophysiology

• Graded from 1-3

– 1: indicate well-differentiated cells

– 3: poorly differentiated cells

• Staging

– Based on degree of localization

– I: tumors confined to body of uterus

– II: cancer limited to uterus and cervix

– III: cancer spread outside of uterus; still in true pelvis

– IV: tumor spread to lymph nodes and distant organs

Uterine Cancer —Etiology

• Higher risk if increased estrogen levels

– Assoc w/ exogenous estrogen

(postmenopausal women)

• Recommended dosage lowered

– Oral contraceptives

• Infertility

• Obesity, diabetes, hypertension increase risk

Uterine Cancer —Signs and

Symptoms

• Painless vaginal bleeding or spotting is key sign

– b/c cancer erodes surface tissues

• Pap smear not dependable for detection

• Direct aspiration of cells provides best analysis

• Late signs of malignancy include palpable mass, discomfort or pressure in lower abdomen, bleeding following intercourse

Uterine Cancer —Treatment

• Surgery and radiation

• Prognosis relatively good

– 5 yr survival rate 90% if cancer well localized at time of diagnosis

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