3. Primary inoculation tuberculosis A large, ulcerated nodule at the site of M.tuberculosis inoculation on the right thigh associated with inguinal lymphadenopathy. The erythematous papules on the left forearm occurred at the site of tuberculin testing.

6. Tuberculosis verrucosa cutis Crusted and hyperkeratotic plaque arising at the site of inoculation in an individual previously infected with M. tuberculosis . There is no associated lymphadenopathy

8. Lupus vulgaris Reddish-brown plaque, which on diascopy exhibits the diagnostic yellow-brown apple-jelly color

10. Lupus vulgaris

11. Scrofuloderma Scrofuloderma represent a direct extension from underlying focus (bone or LN) to the skin. Site : _ Neck _Chest Morphology : -An asymptomatic reddish swelling which breaks down to form sinuses, fistulate or tuberculuos ulcers. -Characteristic caseous materil discharges from lesions.