Lymphogranuloma venereum natural history, complications and prognosis: Difference between revisions
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==Overview== | ==Overview== | ||
==Natural History== | ==Natural History== | ||
===Primary stage=== | |||
LGV may begin as a self-limited painless [[genital ulcer]] that occurs at the contact site 3–12 days after infection. Women rarely notice a primary infection because the initial ulceration where the organism penetrates the [[mucosal]] layer is often located out of sight, in the vaginal wall. In men fewer than 1/3 of those infected notice the first signs of LGV. This primary stage heals in a few days. [[Erythema nodosum]] occurs in 10% of cases. | |||
===Secondary stage=== | |||
The secondary stage most often occurs 10–30 days later, but can present up to six months later. The infection spreads to the lymph nodes through [[lymphatic drainage]] pathways. The most frequent presenting clinical manifestation of LGV among males whose primary exposure was genital is unilateral (in 2/3 of cases) [[adenitis|lymphadenitis]] and [[lymphangitis]], often with tender [[inguinal]] and/or [[femoral]] [[lymphadenopathy]] because of the drainage pathway for their likely infected areas. Lymphangitis of the dorsal penis may also occur and resembles a string or cord. If the route was anal sex the infected person may experience lymphadenitis and lymphangitis noted above. They may instead develop [[proctitis]], inflammation limited to the [[rectum]] (the distal 10–12 cm) that may be associated with anorectal pain, [[tenesmus]], and rectal discharge, or [[proctocolitis]], [[inflammation]] of the colonic [[mucosa]] extending to 12 cm above the anus and associated with symptoms of proctitis plus [[diarrhea]] or abdominal cramps. | |||
In addition, symptoms may include inflammatory involvement of the perirectal or perianal [[lymphatic tissue]]s. In females, [[cervicitis]], [[perimetritis]], or [[salpingitis]] may occur as well as lymphangitis and lymphadenitis in deeper nodes. Because of lymphatic drainage pathways, some patients develop an abdominal mass which seldom [[suppurate]]s, and 20–30% develop inguinal lymphadenopathy. Systemic signs which can appear include fever, decreased appetite, and malaise. Diagnosis is more difficult in women and men who have sex with men (MSM) who may not have the inguinal symptoms. | |||
Over the course of the disease, lymph nodes enlarge, as may occur in any infection of the same areas as well. Enlarged nodes are called '''buboes'''. Buboes are commonly painful. Nodes commonly become inflamed, thinning and fixation of the overlying skin. These changes may progress to [[necrosis]], fluctuant and suppurative lymph nodes, [[abscess]]es, fistulas, strictures, and sinus tracts. During the infection and when it subsides and healing takes place, [[fibrosis]] may occur. This can result in varying degrees of lymphatic obstruction, chronic [[edema]], and [[stricture]]s. These late stages characterised by fibrosis and edema are also known as the third stage of LGV and are mainly permanent. | |||
==Complications== | ==Complications== | ||
Genital [[elephantiasis]] or esthiomene, which is the dramatic end-result of lymphatic obstruction, which may occur because of the [[stricture]]s themselves, or [[fistula]]s. This is usually seen in females, may ulcerate and often occurs 1-20 years after primary [[infection]]. Fistulas of, but not limited to, the penis, [[urethra]], [[vagina]], [[uterus]], or [[rectum]]. Also, surrounding [[edema]] often occurs. Rectal or other strictures and scarring. Systemic spread may occur, possible results are [[arthritis]], [[pneumonitis]], [[hepatitis]], or [[perihepatitis]]. | Genital [[elephantiasis]] or esthiomene, which is the dramatic end-result of lymphatic obstruction, which may occur because of the [[stricture]]s themselves, or [[fistula]]s. This is usually seen in females, may ulcerate and often occurs 1-20 years after primary [[infection]]. Fistulas of, but not limited to, the penis, [[urethra]], [[vagina]], [[uterus]], or [[rectum]]. Also, surrounding [[edema]] often occurs. Rectal or other strictures and scarring. Systemic spread may occur, possible results are [[arthritis]], [[pneumonitis]], [[hepatitis]], or [[perihepatitis]]. | ||
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Overview
Natural History
Primary stage
LGV may begin as a self-limited painless genital ulcer that occurs at the contact site 3–12 days after infection. Women rarely notice a primary infection because the initial ulceration where the organism penetrates the mucosal layer is often located out of sight, in the vaginal wall. In men fewer than 1/3 of those infected notice the first signs of LGV. This primary stage heals in a few days. Erythema nodosum occurs in 10% of cases.
Secondary stage
The secondary stage most often occurs 10–30 days later, but can present up to six months later. The infection spreads to the lymph nodes through lymphatic drainage pathways. The most frequent presenting clinical manifestation of LGV among males whose primary exposure was genital is unilateral (in 2/3 of cases) lymphadenitis and lymphangitis, often with tender inguinal and/or femoral lymphadenopathy because of the drainage pathway for their likely infected areas. Lymphangitis of the dorsal penis may also occur and resembles a string or cord. If the route was anal sex the infected person may experience lymphadenitis and lymphangitis noted above. They may instead develop proctitis, inflammation limited to the rectum (the distal 10–12 cm) that may be associated with anorectal pain, tenesmus, and rectal discharge, or proctocolitis, inflammation of the colonic mucosa extending to 12 cm above the anus and associated with symptoms of proctitis plus diarrhea or abdominal cramps.
In addition, symptoms may include inflammatory involvement of the perirectal or perianal lymphatic tissues. In females, cervicitis, perimetritis, or salpingitis may occur as well as lymphangitis and lymphadenitis in deeper nodes. Because of lymphatic drainage pathways, some patients develop an abdominal mass which seldom suppurates, and 20–30% develop inguinal lymphadenopathy. Systemic signs which can appear include fever, decreased appetite, and malaise. Diagnosis is more difficult in women and men who have sex with men (MSM) who may not have the inguinal symptoms.
Over the course of the disease, lymph nodes enlarge, as may occur in any infection of the same areas as well. Enlarged nodes are called buboes. Buboes are commonly painful. Nodes commonly become inflamed, thinning and fixation of the overlying skin. These changes may progress to necrosis, fluctuant and suppurative lymph nodes, abscesses, fistulas, strictures, and sinus tracts. During the infection and when it subsides and healing takes place, fibrosis may occur. This can result in varying degrees of lymphatic obstruction, chronic edema, and strictures. These late stages characterised by fibrosis and edema are also known as the third stage of LGV and are mainly permanent.
Complications
Genital elephantiasis or esthiomene, which is the dramatic end-result of lymphatic obstruction, which may occur because of the strictures themselves, or fistulas. This is usually seen in females, may ulcerate and often occurs 1-20 years after primary infection. Fistulas of, but not limited to, the penis, urethra, vagina, uterus, or rectum. Also, surrounding edema often occurs. Rectal or other strictures and scarring. Systemic spread may occur, possible results are arthritis, pneumonitis, hepatitis, or perihepatitis.
Prognosis
Highly variable. Spontaneous remission is common. Complete cure can be obtained with proper antibiotic treatment. Course is more favorable with early treatment. Bacterial superinfections may complicate course. Death can occur from bowel obstruction or perforation. Follicular conjunctivitis due to autoinoculation of infectious discharge.