Serositis refers to inflammation of the serous tissues of the body, the tissues lining the lungs (pleura), heart (pericardium), and the inner lining of the abdomen (peritoneum) and organs within. It is commonly found with fat wrapping or creeping fat. Causes
Serositis is seen in numerous conditions:
Lupus erythematosus (SLE), for which it is one of the criteria,
Rheumatoid arthritis
Familial Mediterranean fever (FMF)
Chronic kidney failure / Uremia
Juvenile idiopathic arthritis
Inflammatory bowel disease (especially Crohns disease)
Acute appendicitis
Diffuse cutaneous systemic sclerosis

See also
Hyaloserositis

References


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Trigonocephaly is a congenital condition of premature fusion of the metopic suture (from the Greek metopon, "forehead"), leading to a triangular forehead. The merging of the two frontal bones leads to transverse growth restriction and parallel growth expansion. It may occur syndromic, involving other abnormalities, or isolated. The term is from the Greek trigonon, "triangle", and kephale, "head". Cause
Trigonocephaly can either occur syndromatic or isolated. Trigonocephaly is associated with the following syndromes: Opitz syndrome, Muenke syndrome, Jacobsen syndrome, Baller–Gerold syndrome and Say–Meyer syndrome. The etiology of trigonocephaly is mostly unknown although there are three main theories. Trigonocephaly is probably a multifactorial congenital condition, but due to limited proof of these theories this cannot safely be concluded. Intrinsic bone malformation
The first theory assumes that the origin of pathological synostosis lies within disturbed bone formation early on in the pregnancy. Causes can either be genetic (9p22–24, 11q23, 22q11, FGFR1 mutation), metabolic (TSH suppletion in hypothyroidism) or pharmaceutical (valproate in epilepsy). Fetal-head constraint
The second theory says that synostosis begins when the fetal head gets hindered in the pelvic outlet during birth. Intrinsic brain malformation
The third theory predominates disturbed brain formation of the two frontal lobes as the main issue behind synostosis. Limited growth of the frontal lobes leads to an absence of stimuli for cranial growth, therefore causing premature fusion of the metopic suture.