This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-Share Alike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.
Lichen planus pigmentosus is uncommon in childhood and its treatment is often challenging. We report a case of cutaneous lichen planus pigmentosus in a 10‐year‐old boy, without oral mucosal involvement, two months after an amalgam dental restoration. The diagnosis was based on the histopathological examination of a skin biopsy, the positive patch test to mercury, and the improvement after amalgam removal. Our case report suggests that metal allergy may play a role, and amalgam replacement may be followed by clinical improvement.
We present a case of Pacinian Neuroma (PN) associated with multiple myeloma (MM) in a 57-year-old man with a 6-month history of painful swelling of his fingers. Physical examination revealed definite palpable nodules and moderate swelling over the first phalanx of all his fingers. A biopsy confirmed the diagnosis of PN. The patient reported chronic back pain. Radiologically, a severe demineralization was found. MM was suspected. The results of complete blood count and biochemistry panels were within normal limits. Otherwise, immunoelectrophoresis demonstrated monoclonal light chains in blood and urine. Bone marrow biopsy was consistent with MM. The patient successfully underwent an autologous stem cell transplant with good response. A slight decrease in the size in PN was noted. To the best of our knowledge, no case of PN associated with MM had been reported. This occurrence may be accidental. However, further studies are required in order to explain this association.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.