This patient complained of nodular swelling on his tattoo. A histopathology of the lesion is as shown.

a. What does the histology show?

b. What is the most likely diagnosis?

c. What ocular signs may be present in the anterior segment?

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This patient complained of nodular swelling on his tattoo. A histopathology of the lesion is as shown.

a. What does the histology show?

Non-caseating granuloma.

b. What is the most likely diagnosis?

Sarcoidosis.

The tattoo shows multiple nodular swellings along the lines of the tattoo patterns. This is called "scar sarcoidosis" in which sarcoid nodules occurs in old scars.
 

c. What ocular signs may be present in the anterior segment?

• Lacrimal gland enlargement
• Conjunctival follicles
• Episcleritis / scleritis
• Band keratopathy
• Mutton fat keratic precipitates
• Anterior uveitis
• Iris granuloma (Koeppe or Busacca's

nodules)

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