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Difference between revisions of "Oral pathology"
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→Melanotic macule: +SO
(→Melanotic macule: +SO) |
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===General=== | ===General=== | ||
*Benign. | *Benign. | ||
*Clinically apparent lesion. | |||
===Gross=== | ===Gross=== | ||
*Flat pigmented lesion less than 10 mm in size ([[macule]]). | *Flat pigmented lesion less than 10 mm in size ([[macule]]). | ||
*Usually solitary.<ref name=pmid289929>{{Cite journal | last1 = Buchner | first1 = A. | last2 = Hansen | first2 = LS. | title = Melanotic macule of the oral mucosa. A clinicopathologic study of 105 cases. | journal = Oral Surg Oral Med Oral Pathol | volume = 48 | issue = 3 | pages = 244-9 | month = Sep | year = 1979 | doi = | PMID = 289929 }}</ref> | |||
Image: | Image: | ||
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===Microscopic=== | ===Microscopic=== | ||
Features: | Features - either or both of the following:<ref name=pmid289929/> | ||
#Pigmented basal cell layer. | |||
#Pigment incontinence - (dermal) macrophages with pigment (melanin). | |||
DDx: | |||
*Focal melanosis - ''not'' clinically apparent. | |||
Image: | Image: | ||
*[http://ocw.tufts.edu/Content/51/lecturenotes/551831/552086 Melanotic macule - labia (tufts.edu)]. | *[http://ocw.tufts.edu/Content/51/lecturenotes/551831/552086 Melanotic macule - labia (tufts.edu)]. | ||
===Sign out=== | |||
<pre> | |||
LESION, BUCCAL MUCOSA (LEFT), BIOPSY: | |||
- MELANOTIC MACUOLE. | |||
- NEGATIVE FOR MALIGNANCY. | |||
</pre> | |||
==Smoker's melanosis== | ==Smoker's melanosis== | ||