I vaguely recall having seen something about "pseudo-lymphocytoma", or maybe it was "pseudo-lymphoma", on PubMed a long time ago, so I did a search to see what I could find. Using the second search term, I found 19 reference citations (as of this date, because new ones may be added later) by using the following search terms in the query box:pseudo-lymphoma AND (Lyme OR borrelia OR borreliosis)
Here they are below:
1: Leinweber B, Colli C, Chott A, Kerl H, Cerroni L.
Differential diagnosis of cutaneous infiltrates of B lymphocytes with
follicular growth pattern.
Am J Dermatopathol. 2004 Feb;26(1):4-13.
PMID: 14726817 [PubMed - indexed for MEDLINE]
2: Ghislain PD, Woestyn S, Tennstedt D, Lachapelle JM, Bigaignon G, Delmee M.
Borrelia afzelii evidenced by polymerase chain reaction in a biopsy of nipple
lymphocytoma.
Br J Dermatol. 2003 Feb;148(2):377-9. No abstract available.
PMID: 12588408 [PubMed - indexed for MEDLINE]
3: Maraspin V, Cimperman J, Lotric-Furlan S, Ruzic-Sabljic E, Jurca T, Picken
RN, Strle F.
Solitary borrelial lymphocytoma in adult patients.
Wien Klin Wochenschr. 2002 Jul 31;114(13-14):515-23.
PMID: 12422593 [PubMed - indexed for MEDLINE]
4: Grange F, Wechsler J, Guillaume JC, Tortel J, Tortel MC, Audhuy B, Jaulhac
B, Cerroni L.
Borrelia burgdorferi-associated lymphocytoma cutis simulating a primary
cutaneous large B-cell lymphoma.
J Am Acad Dermatol. 2002 Oct;47(4):530-4.
PMID: 12271296 [PubMed - indexed for MEDLINE]
5: Gissler S, Heininger U.
Borrelia lymphocytoma ("lymphadenosis benigna cutis").
Arch Dis Child. 2002 Jul;87(1):12. No abstract available.
PMID: 12089112 [PubMed - indexed for MEDLINE]
6: Cerroni L, Hofler G, Back B, Wolf P, Maier G, Kerl H.
Specific cutaneous infiltrates of B-cell chronic lymphocytic leukemia (B-CLL)
at sites typical for Borrelia burgdorferi infection.
J Cutan Pathol. 2002 Mar;29(3):142-7.
PMID: 11972710 [PubMed - indexed for MEDLINE]
7: Hwong H, Jones D, Prieto VG, Schulz C, Duvic M.
Persistent atypical lymphocytic hyperplasia following tick bite in a child:
report of a case and review of the literature.
Pediatr Dermatol. 2001 Nov-Dec;18(6):481-4. Review.
PMID: 11841632 [PubMed - indexed for MEDLINE]
8: Kerl H, Fink-Puches R, Cerroni L.
Diagnostic criteria of primary cutaneous B-cell lymphomas and pseudolymphomas.
Keio J Med. 2001 Dec;50(4):269-73.
PMID: 11806505 [PubMed - indexed for MEDLINE]
9: Cherubini M, Rizzardi C, Melato M.
[Pseudolymphoma of the breast involving the periareolar area]
Chir Ital. 2001 Sep-Oct;53(5):689-95. Italian.
PMID: 11723901 [PubMed - indexed for MEDLINE]
10: Chodynicka B, Flisiak I, Okrasinska K, Andrzejewska A, Schwartz RA.
Lymphocytoma cutis: cases linked with Lyme disease.
Cutis. 2000 Oct;66(4):243-6. No abstract available.
PMID: 11109143 [PubMed - indexed for MEDLINE]
11: Couilliet D, Guillaume JC.
[Cutaneous manifestations of Lyme borreliosis]
Ann Dermatol Venereol. 2000 May;127(5):523-7. Review. French. No abstract
available.
PMID: 10863189 [PubMed - indexed for MEDLINE]
12: von Orelli S, Schnarwyler B, Maurer R, Hirsch H, von Castelberg B.
[Vulvar pseudolymphoma: detection of infection by Borrelia burgdorferi using
polymerase chain reaction]
Gynakol Geburtshilfliche Rundsch. 1998;38(3):143-5. German.
PMID: 9885354 [PubMed - indexed for MEDLINE]
13: Sonck CE, Viljanen M, Hirsimaki P, Soderstrom KO, Ekfors TO.
Borrelial lymphocytoma--a historical case.
APMIS. 1998 Oct;106(10):947-52.
PMID: 9833696 [PubMed - indexed for MEDLINE]
14: Kaminsky P, Grignon Y, Deibener J, Maurer P, Duc M.
[Nervous system borreliosis with pseudo-lymphoma cells in cerebrospinal fluid]
Rev Neurol (Paris). 1998 Feb;154(2):170-2. French.
PMID: 9773040 [PubMed - indexed for MEDLINE]
15: Pohl-Koppe A, Wilske B, Weiss M, Schmidt H.
Borrelia lymphocytoma in childhood.
Pediatr Infect Dis J. 1998 May;17(5):423-6. Review. No abstract available.
PMID: 9613660 [PubMed - indexed for MEDLINE]
16: Hassler D.
[Dermatologic findings in Lyme-Borreliosis. 4. Borrelia lymphocytoma
(lymphadenosis cutis benigna Baferstedt)]
Fortschr Med. 1997 Nov 30;115(33):46-8. German. No abstract available.
PMID: 9480283 [PubMed - indexed for MEDLINE]
17: Berger BW.
Current aspects of Lyme disease and other Borrelia burgdorferi infections.
Dermatol Clin. 1997 Apr;15(2):247-55. Review.
PMID: 9098634 [PubMed - indexed for MEDLINE]
18: Obihara CC, de Geer DB, van Diemen-Steenvoorde JA, de Jongh BM.
[Borrelia lymphocytoma ('winter ears') in children]
Ned Tijdschr Geneeskd. 1997 Mar 8;141(10):482-4. Dutch.
PMID: 9173289 [PubMed - indexed for MEDLINE]
19: Strle F, Maraspin V, Pleterski-Rigler D, Lotric-Furlan S, Ruzic-Sabljic E,
Jurca T, Cimperman J.
Treatment of borrelial lymphocytoma.
Infection. 1996 Jan-Feb;24(1):80-4.
PMID: 8852477 [PubMed - indexed for MEDLINE]
_____________________________________________
Comment:
If you want to read any of these abstracts, then here is the link to the search page at PubMed. You can either perform the same search, exactly as I did (with parentheses and capital letters -- spell correctly), or else you can just enter the PMID # (last item) for each article into the query box and hit "go". The citation will pop up. Click on it to find the abstract. Sometimes, if the publisher's icon appears, some (not all) articles are available for free downloading from the publisher's website, while others are available for purchase.
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed
When I substituted the search term "lymphocytoma" for "pseudo-lymphoma" instead, I got 67 reference citations. By including all three terms for Lyme disease (Borrelia OR borreliosis OR Lyme), I can "caste a wider net" and find a lot more listed references than if I only use just either "borreliosis" or "Lyme" alone.
There is a tutorial at PubMed to learn how to design your own searches. Look for it in the sidebar on the left side of the search page.
In other words, don't panic. It might not really be malignant afterall. Do your homework first, before accepting any dire diagnosis like cancer, so that you are prepared to ask all of the right questions.
According to Trevor Marshall (at the SarcInfo-dot-com website), there is a special stain which pathologists are supposed to use to be sure it's really cancer, but unless the doctor requests it, they often don't bother to use it. For this reason, sometimes patients are told their lesions are cancerous when they really aren't. I have no idea at all what kind of special stain he was talking about, but you might want to post a question there for Trevor Marshall, if you really want to know more about this. Here's the link to the discussion "Phorum" at the SarcInfo website:
http://sarcinfo.com/phorum/list.php?f=1
[This message has been edited by TX Lyme Mom (edited 17 June 2004).]