2. Immune mediated disease Flashcards
Opath II, block 6
Smoking decreases risk
Recurrent apthous stomatitis
Opath II, block 6
Decrease in CD4/CD8 ratio and increased TNFa, increase in inflammatory mediators (IL2 and 6)
RAS
Opath II, block 6
Reddish area with slight elecation, often produces tingling sensation , diam., edges are regular , non-jagged, surrounded by a reddish halo
Recurrent apthous stomatitis
Opath II, block 6
Thialidomide
Tx of type C RAS: teratogenic, don’t give to pregnant women
Opath II, block 6
Intralesional triamcinolone (kenalog)
RAS - type B (1/mo) for deep ulcers/injections
Opath II, block 6
DISCONTINUITY OF SF EPITHELIUM. Nonspecific ulcerated* sf covered by fibrouspurulent exudates infiltrated by PMNs. Zone of granulation tissue with dilated capillaries and filled with PMNs macrophages, plasma cells beneath. Deeper layers: repair process
Minor apthous ulcers [RAS: histology]
Opath II, block 6
**HLA-b51 (mexican, middle eastern, and asians), anticardiolipin antibodies, C-Reactive protein (CRP) elevated, chronic anemia/PMN leukocytolysis (15%)
Behcet syndrome
Opath II, block 6
Pathergy test (~to a TB test)
Behcet Syndrome
Opath II, block 6
Crops of mouth ulcers, genital ulcers, eye inflammation
Behcet Syndrome
Opath II, block 6
Dx: recurrent mouth ulcers with any two of the following (Triad of Systems) : eye inflammation, genital ulcerations, skin abnormalities, and erythema nodosum (skin lesions spontaneously appearing as raised, tender, reddish nodules)
Bechet syndrome
Opath II, block 6
STDs/Chlamydia
Reactive Arthritis (Reiter’s Syndrome)
Opath II, block 6
Hemorrhagic crusting of vermillion borders of the lips
Erythema multiforme
Opath II, block 6
Bulls eye skin lesions
EM Minor
Opath II, block 6
Steven’s Johnson syndrome
EM Major (acute form: found in young pts)
Opath II, block 6
Always triggered by Rx rxn, mortality 30-35%, epidermal detachment >30% and results in electolye loss and wide spread infection
TEN (toxic epidermal necrolysis) - most severe form of EM
Opath II, block 6
Dekeratinization and desquamation of filiform papillae
Geographic Tongue
Opath II, block 6
Clinical correlation with fissured tongue
Geographic tongue (or Melkersson-Rosenthal syndrome if oral/facial granulomatosis and facial paralysis are also sx)
Opath II, block 6
Association with psoriasis, seborrheic dermatitis, and atropy
Geographic tongue
Opath II, block 6
Ageusia, Dysgeusia, lichenoid reaction, epithelial sloughing
Allergic Contact Stomatitis
Opath II, block 6
Patch test for dental materials, oral flavorings, preservatives, balsam of peru, and cinnamon
Allergic contact stomatitis
Opath II, block 6
Amalgam sensitivity will cause what kind of rxn
Lechenoid rxn
Opath II, block 6
Labial enlargement and facial swelling
Melkersson-Rosenthal Syndrome
Opath II, block 6
Normal epithelium covering connective tissue showing perivascular infiltrate consisting of lymphocytes and plasma cells with multiple discrete epitehlioid granulomas
Orofacial granulomatosis
Opath II, block 6
A manifestation of crohns disease, sarcoidosis, and melkersson-rosenthal syndrome
Orofacial granulomatosis
Opath II, block 6
Serology: sedementation rate, CRP, and ANCA (anti-neutrophil cytoplasmic ab)
Orofacial granulomatosis
Opath II, block 6
Hypersensitivity due to an inhaled antigen which results in necrotizing franulomatous lesions of the respiratory tract, glomuronephritis
Wegener’s granulomatosis
Opath II, block 6
Strawberry gingivitis
Wegener’s Granulomatosis
Opath II, block 6
Subepithelial split at BM, IgG and C3
MMP
Opath II, block 6
Abs against collagen VII
Epidemolysis Bullosa Acquisita
Opath II, block 6
IgA Abs
Linear IgA
Opath II, block 6
DSG3, suprabasalar spinous layer
Pemphigus Vulgaris
Opath II, block 6
Tzanck cells
Pemphigus Vulgaris
Opath II, block 6
Fishnet appearance on IF
Pemphigus Vulgaris
Opath II, block 6
Patient already diagnosed with cancer
Paraneoplastic Pemphigus
Opath II, block 6
DSG1, subcorneal split (in spinous layer)
Pemphigus Follaceus
Opath II, block 6
IVIG, Ritumaxib
Refractory pemphigus
Opath II, block 6
Wickham’s Striae
Reticular LP
Opath II, block 6
Hyperkeratotic , leukoplakic, raised or flat on tongue and buccal mucosa
Plaque Form LP
Opath II, block 6
Looks like MMP, but has white striae and is precancerous
Erosive LP
Opath II, block 6
Large bullae rupture and cause erosion
Bullous LP
Opath II, block 6
Erosions and white striae around amalgam
Lichenoid reaction
Opath II, block 6
LP invades the nerve
SCC
Opath II, block 6
Band of T lymphocytes around BM, thickening of BM, degeneration of basal cells, antifibrinogen Ab
Lichen Planus
Opath II, block 6
Topical tx that is not a steroid (good for DM and HTN pts)
Tacrolimus
Opath II, block 6
Malar rash, photosensitivity
Lupus Erythematosis
Opath II, block 6
ANA+, dsDNA+, anti-smith Abs
Lupus Erythematosis
Opath II, block 6
Brown tumor
Hyperparathyroidism
Opath II, block 6
Vitamin D deficiency in children
Rickets
Opath II, block 6
Vitamin D deficiency in adults
Osteomalacia
Opath II, block 6
Increased osteoid, decreased mature bone
Rickets/osteomalacia
Opath II, block 6
Deficiency of bone tissue per unit volume of bone, treat with bisphosphonates
Osteoporosis
Opath II, block 6
Three diseases with low serum Calcium levels
Primary hyperparathyroidism, rickets and osteomalacia
Opath II, block 6
Disease with elevated serum Calcium levels
Secondary hyperparathyroidism
Opath II, block 6
Bleeding gingiva, gingivitis, periodontitis, loosening teeth and eosinophilic granuloma
Hangerhan’s cell histocytosis
Opath II, block 6
Giantism and acromegaly
Hyperpituitarism
Opath II, block 6
Change in size and of tissues /space btn teeth (less change in bony architecture): enlargement of hypophyseal fossa, thickening of the outer table of the skull, and enlarged paranasal sinuses
Hyperpituitarism
Opath II, block 6
Mandibular pronathism, increased growth of bone and tissues
acromegaly
Opath II, block 6
hair on end–radial striations in the diploic space of the skull
Sickle cell anemia/thalassemia
Opath II, block 6
Rg: changes in bone marrow – LARGE marrow spaces with thin delicate trabeculae, thin cortical plates, enlarged maxilla but small sinuses
Sickle cell anemia/thalassemia
Opath II, block 6
Osteomyolitis, hypercementosis, and potential to get osteosarcoma
Paget’s Disease
Opath II, block 6
Bilateral uncontrolled growth of bone w/ cement lines “reversal lines
Paget’s Disease
Opath II, block 6
Similar presentation as fibrous dysplasia except patients are older and have Bilateral lesions
Paget’s Disease
Opath II, block 6
Osteoporosis circumscripta, grandular /ground glass/cotton wool, then RO
Paget’s Disease
Opath II, block 6
Tab tests: increased hydroxyproline in urine (increased collagen destruction), elvated ALP (due to osteoclastic activity), hypercalciuria, and normal serum ca2+
Paget’ s Disease
Opath II, block 6
Sclerodactyly, widening of PDL space, Reynaud’s syndrome
Scleroderma
Opath II, block 6
Enlarged Langerhan’s cells, eosinophils and “floating teeth”
Langerhan’s cell histiocytosis
Opath II, block 6
Acute Disseminated LCH
Letter-siwe disease