Abstracts of current literature Verrucous Carcinoma; Clinical and Pathologic Study of 105 Cases Involving Genitalia. F. T. Kraus and C. Perez-Mesa. Cancer 19: 26, January,
Oral
Cavity,
Larynx
and
1966.
In this study, verrucous carcinoma was found most commonly in the oral cavity (seventy-seven cases), but tumors with an identical pattern and natural history occurred in the larynx (twelve cases), the nasal fossa (four cases), the glans penis (eight cases), and the vulva, vagina, scrotum, and perineum (one case each). There seems to be a striking relationship between the use of chewing tobacco or snuff and oral verrucous carcinoma ant1 between lack of circumcision and verrucous carcinoma of the glans penis. The most common presenting complaint was of a slow-growing, painful mass. Lymph node metastases are extremely rare in patients when first seen, regardless of the size or local spread of the and all contiguous tumor. Aggressive local behavior with invasion of bone, cartilage, structures eventually will occur. The response to adequate surgical excision is excellent. Il. R. King. Bone Turnover and Oateogenesis Imperfecta. S. Jett, J. R. Ramser, neuva. Arch. Path. 81: 112, February, 1966.
H. M. Frost,
and A. R. Villa-
It has been said that the basic disorder in the bone in osteogenesis imperfecta is an inability of the osteoblasts to make enough new lamellar bone. Two women with osteogenesis imperfecta were labeled twice with a tetracycline antibiotic, and the anterior end of the eleventh rib was removed at biopsy. The percentage of the cortex replaced by new bone was calculated by means of fluorescence microscopy. The bone formation rates were more than three times faster than normal, indicating that there was no general, cellularly inherent inability to make new lamellar bone in these two women. It is postulated that the basic dynamic bone disorder in this disease is an inability to add bone in to lay down boor! normal amounts at periosteal surfaces, rather than a basic inability throughout the whole skeleton. Il. 12. Kin,g. Pain,
Alveolar
February,
Resorption,
and
Periodontal
Traumatism.
I. F. Ross. Periodontics
3: 38, January-
1965.
Periodontal traumatism refers to the pathologic changes that occur in the periodontium when occlusal and incisal forces exceed physiologic limits. Clinical signs and symptoms include pain suggestive of periodontal abscess formation but without a history of swelling or suppuration, mobility, migration, and wear of the teeth. Little pocket formation or gingivit,is is seen. Radiographic signs include widening of the periodontal ligament space, alveolar resorpt,ion, ant1 root resorption. Radiographic evidence of bone loss is far in excess of what, woultl be expected from clinical examination. Tn thtl cases report,e(l in this article therapy consistetl of reshaping the teeth 1, grin(liug, instructiou in home care, alill light curettage. Favoraltle clinical response ant1 changes occurret either rluring or soon after coml)letion ra~liograplric of therapy. The l)ain (lisappearecl, usually after the first or secontl treatmt~nt, ant1 radiograpl~s showe~l favorable changes in the alveolar bone after treatment. D. R. Eing. 691