title: An aggressive and invasive growth of juvenile papillomas involving the total respiratory tract.
abstract: A malignant course of juvenile laryngeal papillomatosis has rarely been reported. In the present case the patient had had laryngeal papillomas since the age of three years. The papillomas gradually spread to the entire respiratory system, and during 30 years the patient was operated on more than 80 times. At present an invasive tumour spreading from the tongue into the parapharyngeal space, extending to the cranial base, has been demonstrated by magnetic resonance imaging (MRI). Intralesional therapy with Cidofovir, a promising antiviral drug against human papillomavirus (HPV) infection, was started with some clinical effect, although only on the superficial tumour growth. Histology of removed tumour tissue has demonstrated a mixture of exophytic and inverted growth pattern, and has mainly been interpreted as benign, in spite of a focally high mitotic index and an intermittent lack of maturation in the epithelium. In the most recent biopsies a verrucous carcinoma has been diagnosed. Expression of p53 was noted to increase in papillomas with time. All samples have been shown to harbour HPV 11, but no other HPV types.
authors: Department of Pathology, Rigshospitalet, Denmark. RH02875@RH.DK
authors: B L
authors: BL
authors: Petersen
authors: C
authors: C
authors: Buchwald
authors: J
authors: J
authors: Gerstoft
authors: P
authors: P
authors: Bretlau
authors: H
authors: H
authors: Lindeberg
mesh_terms: D000328:Adult; D000998:Antiviral Agents / Q000627:therapeutic use; D000077404:Cidofovir; D003131:Combined Modality Therapy; D003596:Cytosine / Q000031:analogs & derivatives / Q000627:therapeutic use; D004279:DNA, Viral / Q000032:analysis; D017809:Fatal Outcome; D006801:Humans; D008297:Male; D063065:Organophosphonates; D009943:Organophosphorus Compounds / Q000627:therapeutic use; D010212:Papilloma / Q000473:pathology* / Q000821:virology; D027383:Papillomaviridae / Q000235:genetics; D012142:Respiratory Tract Neoplasms / Q000473:pathology* / Q000821:virology; D013997:Time Factors; D014062:Tongue Neoplasms / Q000473:pathology* / Q000821:virology; D016159:Tumor Suppressor Protein p53 / Q000032:analysis
chemical_list: D000998:Antiviral Agents; D004279:DNA, Viral; D063065:Organophosphonates; D009943:Organophosphorus Compounds; D016159:Tumor Suppressor Protein p53; D003596:Cytosine; D000077404:Cidofovir