Predictive role of serum rheumatoid factor in different disease pattern of psoriasis and psoriatic arthritis

Background Psoriasis is a multisystem inflammatory disorder with variable morphology, clinical pattern and multiple comorbidities. Interplay between genetic and environmental factors leading to an aberrant immune response in the skin may contribute to disease development. The assessment for risk factors, signs, and symptoms of potential comorbid diseases is an important component of patient management. The aim of this study is to determine rheumatoid factors (RF) positivity and its levels in psoriasis patients, and describe its relationship with the demographic and clinical characteristics, comorbidities, and disease patterns of psoriasis. Results Rheumatoid factor was positive in psoriatic patients more than control,30% of patients had positive rheumatoid factor while only 10% of control had positive results. Rheumatoid factor level was 63.8 ± 186.7 IU/ml in psoriasis vs. 9.3 ± 12.3 in control. Thirty percent of psoriasis patients have positive rheumatoid factor vs. 10% of control. There was no significant statistical difference between psoriasis patients with or without arthritis as regard rheumatoid factor positivity and titer; rheumatoid factor was positive in 20% in psoriatic patients with arthritis vs. 26% in psoriatic patients without arthritis. In psoriatic patients, the status of rheumatoid factor did not relate to disease severity, onset, course, site of affection, presence of scalp, nail affection, and presence of dactylitis (p value>0.5). Conclusion Psoriasis was associated with higher seropositivity of RF compared to age-matched non-psoriatic healthy controls. Occurrence and level of rheumatoid factor were not associated with severity or clinical pattern of psoriasis.

Unusual organ involvement in sarcoidosis: sarcoid myopathy and peritoneal sarcoidosis

Myopathy and peritoneal involvement are rare complications of sarcoidosis, and the latter can mimic malignancy with peritoneal dissemination. In this case, a patient with a history of polyarthritis and positive rheumatoid factor presented with proximal muscle weakness and abdominal pain. Biopsies of muscle and peritoneum revealed non-caseating granuloma suggesting sarcoidosis. Ocular and pulmonary involvement later developed and confirmed the diagnosis of sarcoidosis.

Lupus Never Fails to Deceive US: A Case of Rowell’s Syndrome

Background. Rowell’s syndrome is comprised of the presentation of erythema multiforme- (EM-) like lesions in association with lupus erythematosus (LE), along with serologies of speckled antinuclear antibodies (ANAs), positive rheumatoid factor (RF), positive anti-La/anti-Ro, and the clinical finding of chilblains. As per the redefined criteria by Zeitouni et al., three major criteria in addition to at least 1 minor criterion are necessary for diagnosis. Case Presentation. A 20-year-old male presented with a one-week history of worsening nonpruritic erythematous maculopapular skin rash (resembling EM) which appeared on the face and subsequently spread to the trunk, arms, legs, palms, and soles. There was no mucosal involvement. At the onset of rash, the patient reported headaches, associated with photosensitivity and intermittent fevers. Workup for viral meningitis yielded negative results. Laboratory investigation revealed mild anemia, elevated inflammatory markers, a positive ANA with speckled pattern, a positive anti-Ro/SSA, anti-La/SSB antibodies, and a positive rheumatoid factor (RF). Lupus anticoagulant antibody was positive along with a low-positive anticardiolipin IgM antibody and a negative beta-2 glycoprotein antibody. Anti-dsDNA, anti-Smith, anti-Jo-1, anti-centromere, and anti-Scl-70 antibodies were negative. Hepatitis serologies, herpes simplex virus 1 and 2, mycoplasma, Epstein–Barr virus, HIV, and parvovirus B19 were negative. Left arm skin biopsy demonstrated vacuolar interface dermatitis and positive colloidal iron stain suggestive of dermal mucin deposition, favoring the diagnosis of cutaneous collagen vascular disease. Cutaneous lesions improved with administration of oral prednisolone. Conclusion. Rowell’s syndrome should be considered in patients who present with cutaneous LE and lesions resembling EM. Further serological markers should be pursued in the absence of obvious EM-precipitating factors.

Rowell syndrome in dermatological practice (a clinical case)

Rowell syndrome is a rare cluster of symptoms characterized by clinical manifestation of lupus erythematosus and erythema multiforme (EM). About 100 cases of the syndrome have been reported in medical publications during the last 100 years. This may be related to misinterpretation of the symptoms and subsequent incorrect diagnosis due to its EM-like manifestations. Important clues for the diagnosis of Rowell syndrome are findings of positive rheumatoid factor, anti-nuclear antibodies and other erythematoid markers, as well as additional investigations, in particular, direct immunofluorescence technique. The paper describes a clinical case of Rowell syndrome in a 16-year old male patient. The diagnosis was challenging due to EM-like skin manifestations and required additional laboratory work-up, as well as the patient's follow-up. The diagnosis of Rowell syndrome was based on the clinical manifestations and on such diagnostic criteria as positive rheumatoid factor and anti-nuclear antibodies, as well as histological and laboratory abnormalities characteristic of the erythematosis. The patient was hospitalized and received the following treatment: prednisolone infusion (2.5 mg/kg/daily for 7 days), chloropyramine (1 mL i.m. twice daily for 5 days), hydroxychloroquine (6.5 mg/kg daily for 5 days), magnesium asparaginate/potassium asparaginate (one tablet (166.3 mg/175 mg) 3 times daily for 7 days), topical methylprednisolone aceponate cream 1% (once daily for 7 days). The treatment resulted in positive changes in the skin lesion and improvement of his general state. This clinical observation gives an example of classic Rowell syndrome proven both by lab and clinical signs, taking into account skin symptoms of lupus erythematosus and EM-like rash.