A patient suffering from malignant external otitis (MEO) underwent early blood pool scanning followed after 2 hours by 99m To MDP bone scanning, and serial Ga-67 citrate scintigraphies of the skull. The former two procedures served as a diagnostic tool to MEO. The latter was used for estimating the extent of the infective process, and for following-up the efficacy of treatment.

The complementary role of these three procedures in the diagnosis, and follow-up of MEO, with special emphasis on immediate blood pool scanning as part of the diagnostic procedure, is illustrated.

Hearing results and causes of failure with three types of ossicular reconstruction techniques over an infact stapes, during second-stage intact canal wall tympanoplasty, are reporte herein.

The three types of reconstruction are: fitted autologous incuc (38 cases): PlastiporeTM PORP with cartilage (41 cases): PlastiporeTM PORP without cartilage (32 cases).

A residual air-bone gap within 15 dB. was found in 63.2 per cent of fitted incudes, in 41.5 per cent of PORPs with cartilage, and in only 37 per cent of PORPs without cartilage.

Eighty-four per cent fitted incudes, 63 per cent PORPs with cartilage and 44 per cent PORPs without cartilage yielded a residual air-bone gap within 25 dB.

Extrusion has been the main cause of failure among PlastiporeTM prostheses.

Total lactate dehydrogenase (LDH) activity and isoenzyme pattern were studied in tumore tissue from eight patients with maxillary adenocarcinoma, chronic inflammatory mucosa from 12 patients, normal maxillary mucosa from 12 patients, and an experimental lung adenocarcinoma and normal lung tissue from 12 mice.

An increase in the total LDH activity and cathodic shift in LDH isoenzyme pattern was found in human maxillary adenocarcinoma as compared to normal and inflammatory mucosa. The inflammatory mucosa showed an increase in the total LDH activity and a normal isoenzyme pattern. The LDH alterations in the total LDH activity and a normal isoenzyme pattern. The LDH alterations in the experimental lung adenocarcinoma in mice were similar to those in the human tumours but they were much more marked.

The authors report their experience in the diagnosis and treatment of Menière's disease in childhood.

They believe it to be essential to carry out a complete battery of audio-vestibular tests, with particular reference to dehydration procedures, which in this age group are considered to be more significant for a correct diagnosis than in adults.

After stressing the importance of eliminating other forms of disease which manifest themselves with vertigo, the authors conclude by asserting the efficacy of medical treatment with diuretics and they support the surgical procedure of endolymphatic-mastoid drainage as a valid means of contending with the hydrops.

Summary Pulmonary tuberculosis is still a common disease in the developing countries of the world. One hundred patients with pulmonary tuberculosis showed laryngeal involvement in 37 patients. The posterior part of the larynx followed by the epiglottis are the commonest sites to be involved in the laryx. Ulcerative lesions and perichondritis. so common in prechemotherapeutic days, were not seen.