Dermoscopy of XXXX on mucocutaneous junction and mucous membrane.

@entity1 @entity1182 @entity320 @entity66
BACKGROUND: The dermoscopic features of @entity66 on the mucocutaneous junction and mucous membrane are different from those on hairy skin. Differentiation between benign lesions and malignant @entity320 of these sites is often difficult. OBJECTIVE: To define the dermoscopic patterns of lesions on the mucocutaneous junction and mucous membrane, and assess the applicability of standard dermoscopic algorithms to these lesions. @entity1 AND METHODS: An unselected consecutive series of 40 lesions on the mucocutaneous junction and mucous membrane was studied. All the lesions were imaged using dermoscopy devices, analysed for dermoscopic patterns and scored with algorithms including the ABCD rule, Menzies method, 7-point checklist, 3-point checklist and the @entity1182 algorithm. RESULTS: Benign @entity66 of the mucocutaneous junction and mucous membrane frequently presented a dotted-globular pattern (25%), a homogeneous pattern (25%), a fish scale-like pattern (18.8%) and a hyphal pattern (18.8%), while @entity320 of these sites showed a multicomponent pattern (75%) and a homogeneous pattern (25%). The fish scale-like pattern and hyphal pattern were considered to be variants of the ring-like pattern. The sensitivities of the ABCD rule, Menzies method, 7-point checklist, 3-point checklist and @entity1182 algorithm in diagnosing @entity320 were 100%, 100%, 63%, 88% and 100%; and the specificities were 100%, 94%, 100%, 94% and 100%, respectively. CONCLUSION: The ring-like pattern and its variants (fish scale-like pattern and hyphal pattern) are frequently observed as well as the dotted-globular pattern and homogeneous pattern in mucosal melanotic macules. The algorithms for @entity66 on hairy skin also apply to those on the mucocutaneous junction and mucous membrane with high sensitivity and specificity.
