Irving Meyer

Dermoid cysts (dermoids) of the floor of the mouth.

Abstract Dermoid cysts of the floor of the mouth are discussed as to their embryology, development, and classification. A classification of these cysts, based on histopathologic findings, is presented in this article and it is suggested that the word dermoid be retained as a clinical term for all these developmental cysts of the floor of the mouth. Four cases of dermoid cysts of the floor of the mouth are presented; these were successfully managed surgically without recurrence. A preoperative evaluation of the location of the cyst in relation to the mylohyoid and geniohyoid muscles, that is, sublingual or submental position, is important in determining whether to approach the cyst through an intraoral or an extraoral incision. The clinical diagnosis is inconclusive and the final diagnosis must be proved by histologic examination.

Nd:YAG laser excision of a giant gingival pyogenic granuloma of pregnancy

A 19‐year‐old Hispanic nullipara experienced the rapid growth of an oral lesion on the right lower gingiva which she had first noticed at 29 weeks gestation. The lesion interfered with oral hygiene and eating. At surgery, the lesion measured 3.5 × 2.5 × 2.0 cm. Biopsy confirmed a pyogenic granuloma (“granuloma gravidarum”). Panorex films showed no bony invasion. The lesion was excised using the Nd:YAG laser under general anesthesia when the patient had reached 36 3/7 weeks gestation. We chose the Nd:YAG laser over the CO2 laser for the removal of this very vascular lesion, because of its superior coagulation characteristics. This technique results in removal of the lesion with less danger of bleeding than with any other surgical technique. The patient did well postoperatively, delivered a healthy 3,884 g infant at 40 6/7 weeks gestation, and has had no recurrence after 15 months of follow‐up.

Giant-cell tumors of the mandible and maxilla

Abstract The features of giant-cell tumor of the mandible and maxilla are discussed, and a small series of carefully observed cases is presented. The extreme rarity of true giant-cell tumor of the jaws is disputed.

Neurogenic tumors of the mouth and jaws

Abstract A study of neurogenic tumors of the oral cavity has been presented, and a simple classification of these neoplasms has been suggested. Our discussion of these interesting tumors has been based on a series of fifty cases. The study has included the clinical history, the histopathology, and the accepted treatment of these lesions.

Osteoma of the Tongue

True osteomas occur rather frequently in the bones of the skull and involve the sinus cavities. Osteoma of the tongue is a rare condition. Seven cases have previously been reported. The eighth case is now presented. REPORT OF CASE Mrs. M. W., a white housewife, age 30, was admitted to the migraine clinic of Montefiore Hospital, on Dec. 23, 1946. Her chief complaints were headache, postnasal discharge and a tendency to gag and vomit. These had been present for several months. There was no history of pain or difficulty in swallowing. On Jan. 23, 1947, she was referred to the ear, nose and throat clinic for consultation. At that time the patient stated that six days previously she had felt with her finger a mass at the back of her throat. Examination revealed no abnormalities except of the tongue. At the middle of the right limb of the V formed

The oral manifestations of acquired syphilis: A study of eighty-one cases

Abstract 1. 1. Eighty-one cases of syphilis with oral involvement were studied. 2. 2. The histopathologic nature of oral lesions of syphilis has been discussed; in general, it conforms to luetic lesions elsewhere in the body. 3. 3. Chancres and mucous patches are exceedingly rare. 4. 4. Lesions of tertiary syphilis are uncommon, but not so rare as the primary and secondary lesions. 5. 5. There has been a notable decrease in the incidence of lingual carcinoma in relation to syphilis; this may be associated with the intensive antibiotic therapy of syphilis since 1940. 6. 6. A syndrome of bone abnormalities apparently associated with tertiary syphilis has been presented. It is suspected that the cause of this syndrome has a neurotropic and vascular basis. 7. 7. Although syphilitic osteitis and osteomyelitis of the jaws have been reported, we did not find a single case of either in our series.

Solitary and multiple plasma-cell tumors of the jaws and oral cavity☆

S olitary plasma-cell tumors are rare lesions which may occur in bone or soft tissue. Primary soft-tissue plasma-cell tumors ca,n occur in many tissues and organs, but they are more commonly found in the upper air passages and the oral cavity.4p 6, 9, lo, I6 Extramedullary plasmacytomas may have a variety of clinical appearances, but they are usually described as pedunculated or sessile, red or gray-red masses on the mucosa. The relationship between solitary plasma-cell tumors and multiple myeloma is rather confusing. Multiple myeloma is usually a fatal disease that runs its course in about 2 years.l, I3 It is a malignant neoplasm of bone marrow which is thought to arise from reticuloendothelial cells* and to be multifocal in origin, rather than a metastasis from a primary lesion.5, 6 Clinically, symptoms usually include severe pain and occasional pathologic fracture due to bone destruction. A high percentage of persons affected with this condition exhibit hyperglobulinemia with reversal of the albumin-globulin ratio, anemia, and Bence-Jones protein in the urine. Histologically, multiple myeloma may consist of sheets of densely packed cells which are uniform in size and closely resemble plasma cells. In some instances, the microscopic picture reveals cells which tend to be larger than the normal plasma cells, with multinucleated cell forms a,nd numerous mitoses. The solitary plasma-cell tumor is usually histologically indistinguishable from the multiple plasma-cell myeloma. 7 However, the solitary plasma-cell tumors have a much better prognosis, and most cases do not show the hematologic, chemical, and radiographic changes associated with mult.iple myeloma. Some documented cases however, have been followed for many years and have sub-

Developmental median cyst of the mandible: Report of a case

Summary A case report of a median cyst of the mandible is presented. The etiology, diagnosis, and treatment of these rare developmental cysts are briefly discussed. If thorough excision of the cyst is done, recurrence is unlikely and the prognosis for bone repair is favorable.

A comparison of the effects of 200 KV. Radiation and cobalt-60 radiation on the jaws and dental structure of the white rat

The effects of Co60 and 200-kv radiation on the jaws and dental structures of rats at doses of 1020 to 2040 r were compared. Co60 radiation was much less damaging to bone and dental tissues than 200-kv radiation in comparable dosages. This confirmed clinical impressions concerning the bone- sparing attributes of Co/sup 60/ radiation. Considerably higher dosages can be given with Co60 than with 200-kv radiation. All animals exposed to 200-kv radiation showed alterations in alveolar bone, more severe reactions occurring in animais given 2040 r. There was a decreased density and irreguiarity in the staining of the periodontai membrane, so that the outiines of the interdental septum of alveolar bone were sharp and clearly demarcated. The number of fibroblasts was reduced in the periodontal membrane, and the cells were smaller, rounded, and more deeply stained. Cementoblasts aiong the tooth surface were fewer and bone itself preserted a granularity in staining and pyknosis in osteocytes. The results suggest that a 10% greater dose in megavoltage rads is necessary for an equivalent biologic effect.

Carcinosarcoma of the maxillary sinus: Report of a case

Abstract A case of carcinosarcoma of the maxilla, treated by surgery and irradiation and terminating in death, is presented. Criteria for maintaining the diagnosis of carcinosarcoma are discussed.