ABSTRACT
Introduction: Lichenoid tissue reaction or interface dermatitis embraces several clinical conditions, the prototype of which is lichen planus and its variants. Others include drug induced lichenoid dermatitis, special forms of lichenoid dermatitis, lichenoid dermatitis in lupus erythematosus, and other disorders all of which have salient clinical and histological features. The aim of this study was to correlate the clinical features with histopathological findings in all clinically suspected cases of lichen planus and assess the clinical diagnostic accuracy. Materials and methods: This study had been carried out over a period of 2 years from July 2015 to June 2017 in the Department of Pathology, Gandhi Hospital. Histopathological sections of skin biopsies from 85 patients were studied after routine H and E staining and morphological changes were noted. The patients’ clinical findings were then correlated with the histological changes. The results were then analysed. Results: Total numbers of biopsies inclusive of LP and LP like lesions were 85. Among them, the number of patients having LP was 50. The age ranged from 18 to 65 years (mean 37.1 years). The mean duration of the lesion was 12.02 months (approx 1 year). Males were affected more than females. Out of the 85 cases, 50 were Lichen planus and 35 were lichenoid eruptions. Of the Lichen planus, 31 (61.6%) cases were of classical lichen planus, 6 (13.3%) cases were of hypertrophic lichen planus, 4 (8.3%) cases were of lichen planus pigmentosus, 4 (6.6%) cases were of actinic lichen planus, 3 (5%) cases were of eruptive lichen planus, 1 (1.6%) case each of atrophic lichen planus, annular lichen planus. N. Srivani, B.V.N. Sravani, Shyamala Srujana, O. Shravan Kumar. A study of clinical and histopathological correlation of lichen planus. IAIM, 2017; 4(9): 136-144. Page 137 Conclusion: In the present study, maximum number of cases occurred in age group of 18-28 years. Though pruritis is a common symptom, it is nonspecific. Therefore, histopathology remains the most important diagnostic tool for proper evaluation of Lichenoid eruptions/ Lichen planus.
ABSTRACT
The present investigation was undertaken with an objective of formulating mouth dissolving films (MDFs) of an anti-migraine drug, Sumatriptan Succinate (SUM) to enhance convenience and compliance to the elderly and pediatric patients for better therapeutic efficacy. Film former, Hydroxy Propyl Methyl Cellulose along with film modifier/solubilizing agents, Polyvinyl pyrrolidone K30 (PVP K30) and Sodium Lauryl Sulphate (SLS) were used to formulate MDFs. The MDFs were prepared by wet film applicator technique and were evaluated for in vitro dissolution characteristics, in vitro disintegration time, and their physico-mechanical properties. MDFs with 13% (w/w) of HPMC E5 gave better dissolution properties when compared to HPMC E15. MDFs with PVP K30 and SLS gave superior dissolution properties when compared to MDFs without PVP K30 and SLS. The dissolution properties of MDFs with PVP K30 were superior when compared to MDFs with SLS. Overall, SUM MDFs showed good mechanical properties like tensile strength, folding endurance and % elongation and dissolution properties. These results suggest that the HPMC is an excellent film former which gives rapid drug release.