Two cases of inverted papilloma of the urinary bladder are reported. The benign character of these unusual lesions is confirmed, and the importance of their recognition indicated.

Intracranial Fibroblastic neoplasms developed in 16 of 19 hamsters inoculated intracerebrally with bovine papilloma virus. The tumors presumably arose in the meninges and infiltrated the adjacent brain along the vascular channels. Tumor nodules that developed in the subcutis of the extremities, ears, and body were probably due to viremia following intracerebral inoculation. Fibroblasts of the c...

Case Description- In this clinical report, occurrence of a rare case of canine cutaneous inverted papilloma was discussed. A 4-year-old, intact, male German shepherd dog was presented with multiple skin lesions, located on the inguinal region near the root of penis, which have been progressively growing since two months ago. In close examination of the lesions multiple, firm, painful, and cup-s...

Schneiderian papillomas are benign neoplasms of the nasal cavity and paranasal sinuses arising from the surface epithelium which are also associated with malignant transformation. These neoplasms have three subtypes, namely fungiform, oncocytic, and inverted. Oncocytic Schneiderian papilloma is the rarest of the three morphological variants. It usually presents with unilateral intranasal polypo...

The Tg.AC mouse carrying the v-Ha-ras structural gene is a useful model for the study of chemical carcinogens, especially those acting via non-genotoxic mechanisms. This study evaluated the efficacy of the non-toxic, water-soluble antioxidant from spinach, natural antioxidant (NAO), in reducing skin papilloma induction in female hemizygous Tg.AC mice treated dermally five times over 2.5 weeks w...

We report a rare case of malignant degeneration of a squamous papilloma to squamous cell carcinoma. A 47-year-old female presented at our tertiary referral center with squamous papilloma of the middle ear that transformed into advanced-stage (T4N0M0) squamous cell carcinoma of the temporal bone, with involvement of the facial nerve, labyrinth, temporomandibular joint, sigmoid sinus, and dura of...

= Abstract = In order to study the epidemiologic relationship between children's papillomaviral disease and papillomaviral infection of mothers, five anogenital warts and seven laryngeal papilloma in children were analyzed by polymerase chain reaction to detect HPV DNA HPV type 6 was found in 8 cases and HPV type 11 in 7 cases. Both types were found in 3 cases. From these results, anogenital wa...

BACKGROUND Ocular rhinosporidiosis is a chronic granulomatous infection caused by a newly classified organism that is neither a fungus nor bacterium. It often presents as a benign conjunctival tumour but may mimic other ocular conditions. It is most often described in India. In Africa cases have been reported from South Africa, Kenya, Tanzania, Malawi, Uganda, Congo and Ivory Coast. CASE PRES...

introduction: the human papilloma virus (hpv) can play a role in the development of head and neck squamous cell carcinoma (scc). our aim was to assess the prevalence of hpv dna in scc of the larynx. the impact of hpv infection on patient survival was also evaluated.  materials and methods: this case-control study was performed in 44 patients with scc of the larynx (case group), while the contro...