Primary acquired melanosis (PAM) > flat, brown patches of pigment without cysts on the conjunctiva. Usually in middle age Caucasian pts. Unilateral and may become thickened overtime . 10 30% of these lesions convert Lipo Stat Plus Weight Loss Injections Pigmented FUNGIFORM PAPILLAE Histology will reveal melanocytes and melanophages along the basal layer and within the connective tissue core of these papillae. What is the embryonic origin of Melanocytes? #oralpathology #oralmedicine Histopathology of Dermal Melanocytosis (Acquired Bilateral Nevus of Ota Like Macules (ABNOM) or Hori's Macules, Nevus of Ota, and Sun's Nevus) Lipotropic Injection VITAstir Clinic Michigan a Melanoacanthoma of the upper labial mucosa. b Histopathologic Download Scientific Diagram