involving edema, varicose veins, trophic skin changes, and an ulcer
factor V Leiden mutation
factor V 可抵抗protein c的分解,factor V let factor X to convert prothrombinogen->prothrombin
anticoagulants
Because of the persistence of the occlusion, no valvular reconstruction could be performed in the deep veins, and the main varicose trunks could not be surgically repaired
distal varicosities were resected, and medicated compressive bandages were applied.
anticoagulant therapy and wearing compression stockings.
slight bilateral eyelid ptosis, temporalis muscle atrophy, and a waddling gait. Muscle strength was 4/5 in the scapular-girdle musculature and 3/5 in the hip flexors and extensors.
myotonic phenomenon
There was no grip myotonia. Sensation and coordination were preserved.
myotonic discharges and low-amplitude, short-duration motor-unit potentials, indicating myopathy
creatine kinase level was 107 U per liter
history of hypercholesterolemia and cataracts
CTG triplet expansion in the dystrophia myotonica–protein kinase (DMPK) gene, confirming the diagnosis of type 1 myotonic dystrophy.
nonsmoker, had no pulmonary symptoms, and was otherwise well
multiple calcifications
linear, nodular, irregular shape, known as "popcorn" calcifications
pulmonary chondroid hamartoma
Pulmonary hamartoma is a benign lung tumor that should be considered when an incidental solitary pulmonary nodule is identified. Popcorn calcifications within a well-circumscribed pulmonary nodule are highly suggestive of pulmonary chondroid hamartoma.
sexually active sincethe age of 21 and had had 18 male partner
menses hadbeen monthly and regular
Menarche had occurred at the age of 13 years
used oralcontraceptives for 3 months
consistent condom use for both contraceptionand protection against sexually transmitted infections, excepton three occasions
She had had multipleatypical nevi, and one of two previous excisions had reportedlyshown dysplastic changes. She had had an adenoidectomy at theage of 10 years.
drank
reported several episodes of blackouts while drinking
Her mother had a history of vitiligo and alcoholabuse; her father and two sisters had irregular nevi.
She was allergic to codeine. Her only medication was lorazepam,as needed for anxiety during airplane flights.
tonsils were enlarged
multiple nevi on the trunk, arms, and legs
The patient was counseledabout her level of alcohol consumption
The next week, review of the Pap smear revealed a high-gradesquamous intraepithelial lesion. All other laboratory-test resultswere normal, and tests for infectious diseases were negative.
Pathological examination revealed moderate-to-severe squamousdysplasia with koilocytosis.
atypical glandular epithelium.
In women, having sex during menses,having early coitarche, and being subject to coercive sex arealso important risk factors; using alcohol, tobacco, marijuana,or oral contraceptives and having a new partner, especiallyif he is known for less than 8 months before initiation of sexualactivity, are predictive of an incident HPV infection.
Thepresence of another sexually transmitted infection, such asvulvar warts or HSV infection, is an additional biologic riskfactor for HPV infection in this age group.
This patienthad multiple new sexual partners during a short time and reportedthat on at least three occasions she failed to use condoms.We can thus assume that she was at high risk for an incidentHPV infection.
Current guidelines recommend initiation of cervical-cancer screeningwithin 3 years after first intercourse or by the age of 21 years,whichever occurs first.
Koilocytes
which are cells with the classic features of aproductive viral infection, were indicative of the presenceof low-grade squamous intraepithelial lesions.
However, coexistingwith the koilocytes were cells representative of a high-gradesquamous intraepithelial lesion, which is a true neoplasticprecursor lesion capable of progression to invasive carcinoma
The presenceof a high-grade squamous intraepithelial lesion typically correlateswith the presence of severe dysplasia or carcinoma in situ,known as grade 3 cervical intraepithelial neoplasia (CIN 3)on biopsy specimens.
colposcopy
time of progression from persistent HPVinfection to high-grade squamous intraepithelial lesions hasbeen thought to be 5 to 15 years
cumulative36-month progression rates to grade 2 or 3 CIN (CIN 2/3) from7 to 20%, with the highest rates reported for HPV type 16 (HPV-16)
Thus, this patient's diagnosis of high-grade squamous intraepitheliallesions within 2 years after becoming sexually active may notbe as unusual as we might have thought.
Invasivecervical cancer is rare in adolescents and young women aged13 to 20 years
Thus, although high-grade squamousintraepithelial lesions in adolescents and young women is unlikelyto regress, it does not appear to progress rapidly to invasivecancer.
Because of the low risk of invasive cancer in this population,diagnostic excisional procedures are avoided in adolescents,unless high-grade squamous intraepithelial lesions persist fora total of 24 months.
after twonormal Pap smears, the patient can return to routine screening.
Nonetheless, for this patient, the benefit of vaccination wouldinclude protection against the development of new HPV infectionwith other high-risk strains, as well as against genital warts.
In this patient, completion of vaccination with the quadrivalentvaccine would be appropriate, despite the likelihood that sheis already infected with at least one of the four HPV typesin the vaccine.
We do not know why a high-grade lesion developedin this patient, which occurs in less than 1% of all adolescentgirls and young women.
slightly more boys than girls affected and,after puberty, more women than men.
airway smooth-muscle constrictionand inflammation of the bronchi
cellular infiltration, particularly byeosinophils (and in some cases, neutrophils) and activated helperT lymphocytes9 as well as mast cells that (unlike mast cellsin other eosinophilic airway diseases) infiltrate smooth-musclebundles
increased airway secretions, including secreted mucus,desquamated lining cells, and intraluminal eosinophils; capillaryengorgement; hyperplasia of smooth muscle; and deposition ofexcess collagen, particularly immediately beneath the basementmembrane of the epitheliu
hypertension (blood pressure, 225/122 mm Hg), tachycardia (heart rate, 112 bpm), tachypnea (24 breaths per minute), and hypoxemia
elevated jugular venous pressure, bilateral rales, and edema of the legs. The level of brain natriuretic peptide was elevated (780.8 pg per milliliter; normal level, <18.4)
dilated azygos vein
enlarged cardiac silhouette
peribronchial cuffing
Kerley's A lines (arrows) are linear opacities extending from the periphery to the hila; they are caused by distention of anastomotic channels between peripheral and central lymphatics. Kerley's B lines (white arrowheads) are short horizontal lines situated perpendicularly to the pleural surface at the lung base; they represent edema of the interlobular septa. Kerley's C lines (black arrowheads) are reticular opacities at the lung base, representing Kerley's B lines en face.
Fouryears earlier, his partner had received a diagnosis of HIV infectionand did not take antiretroviral medications, reportedly becauseof a low viral load and normal CD4 count.