Jaewon Jang

Regression of an acral lentiginous melanoma with an immunotherapy using a Mycobacterium tuberculosis-extracted polysaccharide complex (Tubercin)

A 77‐year‐old‐female presented with a painless, pigmented lesion, which had been present for approximately 10 years but had increased significantly in size during the last 3 months. Her past history was unremarkable, but she had been a farmer for more than 50 years and was routinely exposed to excessive amounts of sunlight. On examination, a lesion measuring 11 × 15 mm was noted on the base of left thumb. The lesion was black, slightly elevated and irregularly shaped with a relatively demarcated border. Histological examination of the biopsy specimen was consistent with an acral lentiginous melanoma (ALM) with a thickness of 4 mm. Whole body computed tomographic examination and bone scan demonstrated no distant metastases.