What's the difference between papilloma and tumour?
Papilloma
Definition:
(n.) A tumor formed by hypertrophy of the papillae of the skin or mucous membrane, as a corn or a wart.
Example Sentences:
(1) One week after initiation is 1-2 months before the appearance of benign papillomas that harbor activated Ha-ras oncogenes when the initiated mice are promoted with the tumor promoter phorbol 12-myristate 13-acetate.
(2) The functional polarity of normal mucosa epithelium and of papilloma is also evidenced in terms of NOR-related parameters.
(3) A case of papilloma of the gallbladder is reported.
(4) In the advanced papilloma, cytolytic cells in the outer spinous and the granular layers did not stain positively with any of the three antibodies used.
(5) Quadrantectomy centered around the discharging duct, is the procedure of choice in this disease, at the interface between diagnostic and treatment, in fact, if benign tumors (papillomas) or non tumoral diseases (fibrocystic mastopathy and duct ectasia) predominate, invasive or in-situ malignant lesions represent 13 p. cent of these 46 discharges, justifying the significance of this clinical sign.
(6) The nucleic acid extracts from the Vx7 carcinomas consistently yielded papillomas whereas those from Vx2 completely failed to do so.
(7) Treatment of transitional papilloma is always surgical.
(8) This paper describes immunostaining of consecutive sections from 15 cases of fibrocystic change of the breast (including 2 examples of intraductal papilloma), 4 ductal carcinomas-in-situ and 17 invasive carcinomas (4 tubular, 1 papillary, 2 lobular and 10 infiltrating ductal, NOS) with antisera to components of the basement membrane (BM), type IV collagen and laminin, and with the muscle antibodies actin and muscle-specific actin.
(9) By means of hybridization of nucleic acid, we detected DNA specific for papilloma virus, type 6a, in a caruncle papilloma of a 45-year-old female patient suffering from genital warts.
(10) Yet experience has disclosed an obstacle to understanding the relationship between cervical cancer and OC use--cervical cancer may be caused by the human papilloma virus transmitted by sexual intercourse.
(11) The authors report two cases of large, vascular choroid plexus papillomas that were detected at birth and surgically excised shortly thereafter.
(12) A case of malignant choroid plexus papilloma (choroid plexus carcinoma) originated in the third ventricle is reported.
(13) As human papilloma virus type 5 is known to have malignant potential, clinicians should be on the lookout for these banal-looking and distinctly non-warty lesions in renal transplant recipients.
(14) To examine the basis for such changes, we have transformed the rat fibroblast cell line FR3T3 with the oncogenes c-Ha-ras EJ, v-mycOK10, v-src, polyoma virus middle T or the transforming bovine papilloma virus 1 (BPV1), and measured the sialytransferase activities of cellular lysates.
(15) Two major questions regarding nasal papilloma are the probability for lesion recurrence after surgical excision and the risk for malignant transformation.
(16) Human papilloma virus (HPV) genital infections are sexually transmitted and often found among young women.
(17) Inverted papillomas are uncommon lesions in the nose and paranasal sinuses, especially in the pediatric age group.
(18) Negatively stained virions purified from papilloma homogenates by isopycnic CsCl centrifugation were 55 nm in diameter and had typical papillomavirus morphology.
(19) The ability to induce papillomas with a known probability of conversion to carcinomas will facilitate the identification of markers associated with malignant progression.
(20) Cutaneous horns (hyperkeratotic papillomas) were on mucocutaneous junctions of one animal.
Tumour
Definition:
Example Sentences:
(1) In contrast to previous reports, these tumours were more malignant than osteosarcomas and showed a five-year survival rate of only 4-2 per cent.
(2) At operation, the tumour was identified and excised with part of the aneurysmal wall.
(3) When perfusion of the affected lung was less than one-third of the total the tumour was found to be unresectable.
(4) Some S-100 reactive cells previously interpreted as tumour cells were refound in a few tumours.
(5) An association of cyclophosphamide, fluorouracil and methotrexate already employed with success against solid tumours in other sites was used in the treatment of 62 patients with advanced tumours of the head and neck.
(6) Ten out of 12 (83%) tumours which had c-erbB-2 and c-erbA co-amplification had metastasised to axillary lymph nodes (P less than 0.006).
(7) These data indicate that RNA faithfully transfers "suppressive" as well as "positive" types of immune responses that have been reported previously for lymphocytes obtained directly from tumour-bearing and tumour-immune animals.
(8) These are rare tumours comparable to abdominal desmoid tumours.
(9) Over the past decade the use of monoclonal antibodies has greatly advanced our knowledge of the biological properties and heterogeneity that exist within human tumours, and in particular in lung cancer.
(10) Tumour necrosis factor (TNF), a polypeptide produced by mononuclear phagocytes, has been implicated as an important mediator of inflammatory processes and of clinical manifestations in acute infectious diseases.
(11) Expression of AR was compared with that of ER and PR as well as with tumour grade and age.
(12) The risk of recurrence and progression in 170 patients presenting with pTa urothelial tumours of the bladder has been estimated so that follow-up can be rationalised.
(13) Instead, the White House opted for a low-key approach, publishing a blogpost profiling Trinace Edwards, a brain-tumour victim who recently discovered she was eligible for Medicaid coverage.
(14) Finally, 10 patients had an intra- and extrasellar tumour (group III).
(15) Four patients with tumours larger than 2 cm died from metastatic carcinoid.
(16) We conclude that 1H MRS has a clear role in the diagnosis and biochemical assessment of intracranial tumours and in the evaluation and monitoring of therapy.
(17) The independent but combined use of both antigens, appreciably raises the diagnostic success percentage with regard to that obtained when only one tumour marker was used.
(18) We describe 10 patients with cerebral venous thrombosis: two had protein S deficiency, one had protein C deficiency, one was in early pregnancy, and there was a single case of each of the following: dural arteriovenous malformation, intracerebral arteriovenous malformation, bilateral glomus tumours, systemic lupus erythematosus, Wegener's granulomatosis, non-Hodgkin's lymphoma.
(19) All patients in Stages I and II (5 out of 26) who developed metastases had poorly differentiated (histological Type III) tumours.
(20) Three angiographic observations showing partial mesenteric vascularisation of renal tumours were made.