ICD-11 definition : Borderline tuberculoid (BT) leprosy is similar to polar (TT) tuberculoid leprosy but
lesions are smaller and more numerous and nerves are less enlarged. Nerve damage is
common [Dermatology TAG].;
Borderline tuberculoid (BT) leprosy is similar to polar (TT) tuberculoid leprosy but
lesions are smaller and more numerous and nerves are less enlarged. Nerve damage is
common [Dermatology TAG].