Wound Healing and Ulcers of the Skin - part 1 pps

... blacks, and East Asians have rates 10 –20 times lower than lighter- skinned whites. In keeping with the role of sun exposure, the incidence is inversely correlated with the latitude of residence; ... exceptions are benign. Examples of malignant and benign pigmented lesions are shown in Fig. 8 3 -1 . Figure 8 3 -1 Source: Adapted from AR Rhodes et al: JAMA 258: 314 6,...

Ngày tải lên: 07/07/2014, 01:20

... reddish brown, and often whitish pink, and the border of lesion is at least in part a During much of thi s time, the precursor stage, lentigo maligna, is confined to the epidermis. Source: ... Lentigo maligna melanoma Sun- exposed surfaces, 70 5–20 a or longer In flat portions, shades of brown and tan particularly malar region of cheek and temple p...

Ngày tải lên: 07/07/2014, 01:20

... development of 6% has been estimated. The risk is greatest before age 5 and next greatest between ages 5 and 10 . Early detection of melanoma is difficult in these lesions because of the deep dermal ... origin of primary melanoma and because of the large and varied surface of the nevus. Prophylactic excision early in life can be accomplished by staged removal...

Ngày tải lên: 07/07/2014, 01:20

... Saunders, 19 91 ——— et al: Malignant melanoma in the 19 90s: The continued importance of early detection and the role of physician examination and self- examination of the skin. CA Cancer J Clin 1: 2 01, ... J Clin Oncol 19 :3635, 20 01 [PMID: 11 504745] Drake LA et al: Guidelines of care of basal cell carcinoma. J Am Acad Dermatol 26 :11 7, 19 92 [PMID: 17...

Ngày tải lên: 07/07/2014, 01:20

... Testosterone, the major circulating androgen, is converted by the enzyme 5 - reductase to dihydrotestosterone in the gland. The periurethral portion of the gland increases in size during puberty and after ... prospective randomized trials. The paradox of management is that although the disease remains the second leading Chapter 0 91. Benign and Malignant Diseas...

Ngày tải lên: 07/07/2014, 02:20

... carcinoma 0 .1 <0 .1 39 Adenoid cystic carcinoma <0 .1 <0 .1 48 Sarcoma and other soft tissue tumors 0 .1 0 .1 30 All others and unspecified carcinomas 11 .0 6 NA Total 10 0 52 14 a Data ... frequency and age- adjusted incidence rates per 10 0,000 U.S. population are from 60, 514 cases of invasive lung cancer involving all races and both sexes obtai...

Ngày tải lên: 07/07/2014, 01:20

... bacteremia). The mechanisms of action of the antibacterial agents to be discussed in this section are summarized in Table 12 7 -1 and are depicted in Fig. 12 7 -1 . Table 12 7 -1 Mechanisms of Action of and ... defined a Compounds in parentheses are major representatives for the class. Figure 12 7 -1 Chapter 12 7. Treatment and Prophylaxis of Bacteria...

Ngày tải lên: 08/07/2014, 02:20

... areas; the back is the most common site, but dysplastic nevi may also be seen on the scalp, breast s, and buttocks Generally on the sun- exposed surfaces of the skin above the waist; the scalp, ... lymph nodes and palpation of the abdominal viscera are part of the staging examination for suspected melanoma. The patient should be advised to have other...

Ngày tải lên: 07/07/2014, 01:20

... cells and minimize possible local recurrence. The appropriate width of the margin is a source of controversy. A World Health Organization trial that prospectively randomized between 1- and 3-cm ... Cancer of the Skin (Part 6) Biopsy Any pigmented cutaneous lesion that has changed in size or shape or has other features suggestive of malignant melanoma is a cand...

Ngày tải lên: 07/07/2014, 01:20

... on the lower lip. Sun-exposed skin such as the head, neck, hands, and arms are other typical sites of involvement. C. Actinic keratoses consists of hyperkeratotic erythematous papules and ... sun-exposed skin. They arise in middle- aged to older adults and have some potential for malignant transformation. D. Metastatic carcinoma to the skin is characterized by infl...

Ngày tải lên: 07/07/2014, 01:20