Intermediate leprosy A30.8

Boderline form of leprosy standing between multibacillary leprosy lepromatosa and paucibacillary leprosy tuberculoides Untreated, this unstable form of leprosy turns into leprosy lepromatosa.

There are 3 clinical forms:

• borderline tuberculoid leprosy (BT)
• Mid Borderline Leprosy (BB)
• Borderline leprosy (BL)

Symmetrically (trunk) or asymmetrically (face) localized, isolated or confluent, succulent, scaly plaques, possibly bordered anular with nodular bulges. Initially general disease symptoms with muscle weakness. More rarely, alopecia foci or asymmetrical polyneuritis occur.

This "intermediate" form of leprosy can develop into paucibacillary tuberculoid leprosy (usually with sufficient therapy) as well as into multibacillary lepromatous leprosy (in case of insufficient or no therapy).

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