Sarcoidosis
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Sarcoidosis is non-necrotizing granulomatous disease of unknown etiology. It classically associated with (pulmonary) hilar lymphadenopathy. It may be found in almost any organ, e.g. heart, appendix.
General
- Diagnosis of exclusion - infection must be excluded.
- Rare.
Gross
- Bilateral lymphadenopathy ~90% of cases.
Note:
- Radiologic differential diagnosis includes carcinomatosis.[1]
Microscopic
Features:
- Granulomata, well-formed, non-necrotizing.
- Usu. minimal (lymphoid) inflammation; sarcoid granulomas are known as "naked granulomas".[2]
- In lung: interstitial location.
DDx:
Images
Sarcoidosis - lung. (WC)
Granulomata in sarcoidosis with asteroid bodies. (WC)
www:
Stains
- ZN -ve.
- PASD -ve.
- GMS -ve.
Note:
- Done to r/o infection.
Sign out
- Should be something like sarcoid-like granulomas and clinical correlation required.
See also
References
- ↑ URL: http://www.radiologyassistant.nl/en/46b480a6e4bdc. Accessed on: 23 May 2010.
- ↑ Brinster, NK. (Nov 2008). "Dermatopathology for the surgical pathologist: a pattern-based approach to the diagnosis of inflammatory skin disorders (part II).". Adv Anat Pathol 15 (6): 350-69. doi:10.1097/PAP.0b013e31818b1ac6. PMID 18948765.
- ↑ Tong, D.; Manolios, N.; Howe, G.; Spencer, D. (Jan 2012). "New onset sarcoid-like granulomatosis developing during anti-TNF therapy: an under-recognised complication.". Intern Med J 42 (1): 89-94. PMID 22389903.
- ↑ Reule, RB.; North, JP. (Nov 2013). "Cutaneous and pulmonary sarcoidosis-like reaction associated with ipilimumab.". J Am Acad Dermatol 69 (5): e272-3. doi:10.1016/j.jaad.2013.07.028. PMID 24124863.