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Microscopic

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	*[[Lymphoma]], specifically [[MALToma\|MALTomas/BALTomas]].		*[[Lymphoma]], specifically [[MALToma\|MALTomas/BALTomas]].
	*[[Lymphocytic interstitial pneumonia]].		*[[Lymphocytic interstitial pneumonia]].
	*Nodular lymphoid hyperplasia.		*[[Pulmonary nodular lymphoid hyperplasia\|Nodular lymphoid hyperplasia]].
	**This is determined in part by radiology; it has nodules radiographically.		**This is determined in part by radiology; it has nodules radiographically.

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New page

'''Follicular bronchitis/bronchiolitis''' is an uncommon type of [[medical lung disease]].

==General==
*Similar to [[lymphocytic interstitial pneumonia]] (LIP).
**Overlaps with LIP.<ref name=pmid16088689>{{cite journal |author=Nicholson AG |title=Lymphocytic interstitial pneumonia and other lymphoproliferative disorders in the lung |journal=Semin Respir Crit Care Med |volume=22 |issue=4 |pages=409–22 |year=2001 |month=August |pmid=16088689 |doi=10.1055/s-2001-17384 |url=}}</ref>
*Associated with the things seen in LIP;<ref>{{cite journal |author=Aerni MR, Vassallo R, Myers JL, Lindell RM, Ryu JH |title=Follicular bronchiolitis in surgical lung biopsies: clinical implications in 12 patients |journal=Respir Med |volume=102 |issue=2 |pages=307–12 |year=2008 |month=February |pmid=17997299 |doi=10.1016/j.rmed.2007.07.032 |url=}}</ref> however, associations may be less clear in children.<ref name=pmid8404188>{{cite journal |author=Kinane BT, Mansell AL, Zwerdling RG, Lapey A, Shannon DC |title=Follicular bronchitis in the pediatric population |journal=Chest |volume=104 |issue=4 |pages=1183–6 |year=1993 |month=October |pmid=8404188 |doi= |url=}}</ref>

==Gross/radiology==
*No distinct nodule or mass.
*Classically: increased reticular marking, i.e. interstitial pattern.

Images: [http://pathhsw5m54.ucsf.edu/case31/image317.html Intersitial pattern - radiographs (ucsf.edu)].
==Microscopic==
Features:<ref name=afip_vol2_277>AFIP atlas of nontumour pathology. 2002. Vo. 2. P.277. ISBN 1-881041-79-4.</ref>
*Peribronchiolar/peribronchial lymphoid nodules with:
**Reactive germinal centres.
***Lack of these should raise suspicion for lymphoma.
**[[Plasma cells]].
*+/-Lymphoid nodules in the interlobular septa.

Notes:
*Lung parenchyma distant from nodule = normal; no lymphocytic infiltrate.

DDx:
*[[Lymphoma]], specifically [[MALToma|MALTomas/BALTomas]].
*[[Lymphocytic interstitial pneumonia]].
*Nodular lymphoid hyperplasia.
**This is determined in part by radiology; it has nodules radiographically.

==See also==
*[[Medical lung diseases]].

==References==
{{Reflist|1}}

[[Category:Diagnosis]]
[[Category:Medical lung diseases]]

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	==See also==		==See also==
	*[[Medical lung diseases]].		*[[Medical lung diseases]].
			*[[Lymphocytic lesions of the lung]].

	==References==		==References==

Follicular bronchitis/bronchiolitis - Revision history

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