..............

To know about pre malignant conditions of the oral cavity see
http://emedicine.medscape.com/article/1491418-overview

re malinant conditions of skin with photos( nice one!)

http://www.webmd.com/melanoma-skin-cancer/slideshow-precancerous-skin-lesions-and-skin-cancer

Pre cancerous conditions ( to be continued)

Premalignant conditions causing colon cancer
1.FAP, turcots synd
2.HNCC
3.Puetz jeghers synd
4. Cronkite-canada syndrome
5.Juvenile polyposis syndrome(autosomal dominant)
6.adenoma of the colon> 2 cm
Premalignant conditions causing RCC
1.Von hippel landau disease
2.acquired cystic kidney disease
3.Birt hogg dube syndrome
4.cortical renal adenoma
5.analgesic nephropathy
Pre malignant conditions causing carcinoma stomach
1.H.pylori infection
2.pernicious anaemia
3.adenomatous polyp >2 cm
4.intestinal metaplasia
5.benign gastric ulcer
6.Menetriers disease
7. li frumen syndrome
8.HNPCC
Pre malignant conditions causing ca esophagus
1.Achalasia cardia
2.reflux esophagitis
3.esophageal webs(PV syd)
4.corrosive strictures
5.tylosis
6.barretts esophagus
Pre malignant conditions causing ca of penis
1.leukoplakia
2.erythroplakia
3.condyloma accuminata( HPV type II 16 and 18)
4.STDs and long standing genital warts
5.pagets disease
6. Buschke lowensteins tumor
a short description abt all these imp precancerous conditions ll be written soon......