Oral Manifestations of Disease¶
Chapter 38 | Part 2: Cardinal Manifestations and Presentation of Diseases
KEY CLINICAL POINTS¶
- Oral manifestations are critical for diagnosing systemic and local diseases, including infections, autoimmune conditions, and malignancies.
- Dental caries and periodontal disease are leading causes of tooth loss, with risk factors including xerostomia, diabetes, and immunosuppression.
- Oral mucosal lesions (e.g., aphthous ulcers, herpes, candidiasis) have distinct clinical features and require differential diagnosis based on morphology and associated systemic conditions.
- Bisphosphonate therapy increases risk of osteonecrosis of the jaw, necessitating preventive dental care before treatment.
- Halitosis is often oral in origin, but may indicate systemic conditions like periodontal disease or gastrointestinal disorders.
1. DEFINITION & OVERVIEW¶
Oral manifestations encompass lesions, pain, and structural abnormalities of the mouth, teeth, and surrounding tissues. These can reflect local pathology (e.g., dental caries, periodontitis) or systemic diseases (e.g., HIV, diabetes, autoimmune disorders).
Table 38-1: Vesicular, Bullous, or Ulcerative Lesions of the Oral Mucosa¶
| CONDITION | USUAL LOCATION | CLINICAL FEATURES | COURSE |
|---|---|---|---|
| Primary acute herpetic gingivostomatitis (HSV type 1) | Lip and oral mucosa | Labial vesicles that rupture and crust, intraoral vesicles that quickly ulcerate; extremely painful; acute gingivitis, fever, malaise, foul odor, cervical lymphadenopathy | Heals spontaneously in 10–14 days |
| Recurrent herpes labialis | Mucocutaneous junction of lip, perioral skin | Eruption of groups of vesicles that may coalesce, then rupture and crust; painful to pressure or spicy foods | Lasts ~1 week |
| Recurrent intraoral herpes simplex | Palate and gingiva | Small vesicles on keratinized epithelium that rupture and coalesce; painful | Heals spontaneously in ~1 week |
| CONDITION | USUAL LOCATION | CLINICAL FEATURES | COURSE |
|---|---|---|---|
| Chickenpox (VZV) | Gingiva and oral mucosa | Skin lesions may be accompanied by small vesicles on oral mucosa that rupture to form shallow ulcers; may coalesce to form large bullous lesions that ulcerate | Lesions heal spontaneously within 2 weeks |
| Herpes zoster (VZV reactivation) | Cheek, tongue, gingiva, or palate | Unilateral vesicular eruptions and ulceration in linear pattern following sensory distribution of trigeminal nerve or its branches | Gradual healing without scarring unless secondarily infected |
| Infectious mononucleosis (Epstein-Barr virus) | Oral mucosa | Fatigue, sore throat, malaise, fever, cervical lymphadenopathy; numerous small ulcers usually appear several days before lymphadenopathy | Oral lesions disappear during convalescence |
| Herpangina (coxsackievirus A; also possibly coxsackievirus B and echovirus) | Oral mucosa, pharynx, tongue | Sudden onset of fever, sore throat, and oropharyngeal vesicles; diffuse pharyngeal congestion and vesicles (1–2 mm), grayish-white surrounded by red areola; vesicles enlarge and ulcerate | Incubation period of 2–9 days; fever for 1–4 days; recovery uneventful |
| Primary HIV infection | Gingiva, palate, and pharynx | Acute gingivitis and oropharyngeal ulceration, associated with febrile illness resembling mononucleosis and lymphadenopathy | Followed by HIV seroconversion, asymptomatic HIV infection, and ultimately HIV disease |
| Acute necrotizing ulcerative gingivitis (‘trench mouth’) | Gingiva | Painful, bleeding gingiva characterized by necrosis and ulceration of gingival papillae and margins plus lymphadenopathy and foul breath | Debridement and diluted (1:3) peroxide lavage provide relief within 24 h |
| Prenatal (congenital) syphilis | Palate, jaws, tongue, and teeth | Gummatous involvement of palate, jaws, and facial bones; Hutchinson’s incisors, mulberry molars, glossitis, mucous patches, and fissures at corner of mouth | Tooth deformities in permanent dentition, irreversible |
| Secondary syphilis | Oral mucosa | Maculopapular lesions of oral mucosa, 5–10 mm in diameter with central ulceration covered by grayish membrane; eruptions on various mucosal surfaces and skin | Lesions may persist from several weeks to a year |
| CONDITION | USUAL LOCATION | CLINICAL FEATURES | COURSE |
|---|---|---|---|
| Tertiary syphilis | Palate and tongue | Gummatous infiltration of palate or tongue followed by ulceration and fibrosis; atrophy of tongue papillae produces characteristic bald tongue and glossitis | Gumma may destroy palate, causing complete perforation |
| Gonorrhea | Oral mucosa | Most pharyngeal infection is asymptomatic; may produce burning or itching sensation; oropharynx and tonsils may be ulcerated and erythematous; saliva viscous and fetid | More difficult to eradicate than urogenital infection |
| Tuberculosis | Tongue, tonsillar area, soft palate | Painless, solitary, 1- to 5-cm, irregular ulcer covered with persistent exudate; ulcer has firm undermined border | Lesions resolve with appropriate antimicrobial therapy |
| Cervicofacial actinomycosis | Face, neck, and floor of mouth | Infection may be associated with extraction, jaw fracture, or eruption of molar tooth; in acute form, resembles acute pyogenic abscess, but contains yellow ‘sulfur granules’ (gram-positive mycelia and their hyphae) | Typically, swelling is hard and grows painlessly; multiple abscesses with draining tracts develop; penicillin first choice; surgery usually necessary |
Table 38-2: Pigmented Lesions of the Oral Mucosa¶
| CONDITION | USUAL LOCATION | CLINICAL FEATURES | COURSE |
|---|---|---|---|
| Oral melanotic macule | Any area of mouth | Discrete or diffuse, localized, brown to black macule | Remains indefinitely; no growth |
| Diffuse melanin pigmentation | Any area of mouth | Diffuse pale to dark-brown pigmentation; may be physiologic (‘racial’) or due to smoking | Remains indefinitely |
| Nevi | Any area of mouth | Discrete, localized, brown to black pigmentation | Remains indefinitely |
| Malignant melanoma | Any area of mouth | Can be flat and diffuse, painless, brown to black; or raised and nodular | Expands and invades early; metastasis leads to death |
| Addison’s disease | Buccal mucosa | Blotches or spots of bluish-black to dark-brown pigmentation occurring early in disease, accompanied by diffuse pigmentation of skin; other symptoms of adrenal insufficiency | Condition controlled by adrenal steroid replacement |
| CONDITION | USUAL LOCATION | CLINICAL FEATURES | COURSE |
|---|---|---|---|
| Peutz-Jeghers syndrome | Lips, buccal mucosa | Dark-brown spots on lips, buccal mucosa, with characteristic distribution of pigment around lips, nose, and eyes and on hands; concomitant intestinal polyposis | Oral pigmented lesions remain indefinitely; gastrointestinal polyps may become malignant |
| Drug ingestion (neuroleptics, oral contraceptives, minocycline, zidovudine, quinine derivatives) | Any area of mouth | Brown, black, or gray areas of pigmentation | Gradually disappears following cessation of drug intake |
| Amalgam tattoo | Gingiva and alveolar mucosa | Small blue-black pigmented areas associated with embedded amalgam particles in soft tissues; may show up on radiographs as radiopaque particles in some cases | Remains indefinitely |
| Heavy metal pigmentation (bismuth, mercury, lead) | Gingival margin | Thin blue-black pigmented line along gingival margin; rarely seen except in children exposed to lead-based paint | Indicative of systemic absorption; no significance for oral health |
| Black hairy tongue | Dorsum of tongue | Elongation of filiform papillae of tongue, which become stained by coffee, tea, tobacco, or pigmented bacteria | Improves within 1–2 weeks with gentle brushing of tongue or discontinuation of antibiotic if due to bacterial overgrowth |
| Fordyce spots | Buccal and labial mucosa | Numerous small yellowish spots just beneath mucosal surface; no symptoms; due to hyperplasia of sebaceous glands | Benign; remains without apparent change |
| Kaposi’s sarcoma | Palate most common, but may occur at any other site | Red or blue plaques of variable size and shape; often enlarge, become nodular, and may ulcerate | Usually indicative of HIV infection or non-Hodgkin’s lymphoma; rarely fatal, but may require treatment for comfort or cosmesis |
| Mucous retention cysts | Buccal and labial mucosa | Bluish, clear fluid-filled cyst due to extravasated mucus from injured minor salivary gland | Benign; painless unless traumatized; may be removed surgically |
Table 38-3: White Lesions of Oral Mucosa¶
| CONDITION | USUAL LOCATION | CLINICAL FEATURES | COURSE |
|---|---|---|---|
| Lichen planus | Buccal mucosa, tongue, gingiva, and lips; skin | Striae, white plaques, red areas, ulcers in mouth; purplish papules on skin; may be asymptomatic, sore, or painful; lichenoid drug reactions may look similar | Protracted; responds to topical glucocorticoids |
| CONDITION | USUAL LOCATION | CLINICAL FEATURES | COURSE |
|---|---|---|---|
| White sponge nevus | Oral mucosa, vagina, anal mucosa | Painless white thickening of epithelium; adolescence/early adulthood onset; familial | Benign and permanent |
| Smoker’s leukoplakia and smokeless tobacco lesions | Any area of oral mucosa | White patch that may become firm, rough, or red-fissured and ulcerated; may become sore and painful but is usually painless | May or may not resolve with cessation of habit; 2% of patients develop squamous cell carcinoma; early biopsy essential |
| Erythroplakia with or without white patches | Floor of mouth commonly affected in men; tongue and buccal mucosa in women | Velvety, reddish plaque; occasionally mixed with white patches or smooth red areas | High risk of squamous cell cancer; early biopsy essential |
| Candidiasis | Any area in mouth | Pseudomembranous type (‘thrush’): creamy white curdlike patches that reveal a raw, bleeding surface when scraped; found in sick infants, debilitated elderly patients receiving high-dose glucocorticoids or broad-spectrum antibiotics, and patients with AIDS | Responds favorably to antifungal therapy and correction of predisposing causes where possible |
| Erythematous type | Same groups of patients | Flat, red, sometimes sore areas | Course same as for pseudomembranous type |
| Candidal leukoplakia | Any area in mouth | Nonremovable white thickening of epithelium due to Candida | Responds to prolonged antifungal therapy |
| Angular cheilitis | Corner of mouth | Sore fissures at corner of mouth | Responds to topical antifungal therapy |
| Hairy leukoplakia | Lateral tongue, rarely elsewhere on oral mucosa | White areas ranging from small and flat to extensive accentuation of vertical folds; found in HIV carriers (all risk groups for AIDS) | Due to Epstein-Barr virus; responds to high-dose acyclovir but recurs; rarely causes discomfort |
| Warts (human papillomavirus) | Anywhere on skin and oral mucosa | Single or multiple papillary lesions with thick, white, keratinized surfaces containing many pointed projections; cauliflower lesions covered with normal-colored mucosa or multiple pink or pale bumps (focal epithelial hyperplasia) | Lesions grow rapidly and spread; squamous cell carcinoma must be ruled out with biopsy; excision or laser therapy; may regress in HIV-infected patients receiving antiretroviral therapy |
Table 38-4: Alterations of the Tongue¶
| TYPE OF CHANGE | CLINICAL FEATURES |
|---|---|
| Size or Morphology | Papules, nodules, plaques; Macroglossia (enlarged tongue) in developmental conditions like Down syndrome, Simpson-Golabi-Behmel syndrome, Beckwith-Wiedemann syndrome; may be due to tumor (hemangioma/lymphangioma), metabolic disease (e.g., primary amyloidosis), or endocrine disturbance (e.g., acromegaly/cretinism); may occur when all teeth are removed |
| Fissured (‘scrotal’) tongue | Dorsal surface and sides of tongue covered by painless shallow or deep fissures that may collect debris and become irritated |
| Median rhomboid glossitis | Congenital abnormality with ovoid, denuded area in median posterior portion of tongue; may be associated with candidiasis and may respond to antifungal treatment |
| Color | ‘Geographic’ tongue (benign migratory glossitis) with rapid loss and regrowth of filiform papillae leading to denuded red patches; ‘wandering’ across surface; ‘Strawberry’ and ‘raspberry’ tongue (hypertrophy of fungiform papillae); ‘Bald’ tongue (atrophy associated with xerostomia, pernicious anemia, iron-deficiency anemia, pellagra, or syphilis) |
| Hairy tongue | Elongation of filiform papillae due to failure of keratin layer to desquamate normally; brownish-black coloration due to staining by tobacco, food, or chromogenic organisms |
| ‘Strawberry’ and ‘raspberry’ tongue | Appearance during scarlet fever due to hypertrophy of fungiform papillae and changes in filiform papillae |
| ‘Bald’ tongue | Atrophy associated with xerostomia, pernicious anemia, iron-deficiency anemia, pellagra, or syphilis; may be accompanied by painful burning sensation; may be an expression of erythematous candidiasis and respond to antifungal treatment |
| Linear gingival erythema | Inflammation of the gingiva associated with HIV infection |
Table 38-5: Oral Lesions Associated with HIV Infection¶
| LESION MORPHOLOGY | ETIOLOGIES |
|---|---|
| Papules, nodules, plaques | Candidiasis (hyperplastic and pseudomembranous), condyloma acuminatum (human papillomavirus infection), squamous cell carcinoma (preinvasive and invasive), non-Hodgkin’s lymphoma, hairy leukoplakia |
| Median rhomboid glossitis | Congenital abnormality with ovoid, denuded area in median posterior portion of tongue; may be associated with candidiasis and may respond to antifungal treatment |
| Color | ‘Geographic’ tongue (benign migratory glossitis) with rapid loss and regrowth of filiform papillae leading to denuded red patches; ‘wandering’ across surface; ‘Strawberry’ and ‘raspberry’ tongue (hypertrophy of fungiform papillae); ‘Bald’ tongue (atrophy associated with xerostomia, pernicious anemia, iron-deficiency anemia, pellagra, or syphilis) |
| Hairy tongue | Elongation of filiform papillae due to failure of keratin layer to desquamate normally; brownish-black coloration due to staining by tobacco, food, or chromogenic organisms |
| LESION MORPHOLOGY | ETIOLOGIES |
|---|---|
| ‘Strawberry’ and ‘raspberry’ tongue | Appearance during scarlet fever due to hypertrophy of fungiform papillae and changes in filiform papillae |
| ‘Bald’ tongue | Atrophy associated with xerostomia, pernicious anemia, iron-deficiency anemia, pellagra, or syphilis; may be accompanied by painful burning sensation; may be an expression of erythematous candidiasis and respond to antifungal treatment |
| Linear gingival erythema | Inflammation of the gingiva associated with HIV infection |
| Kaposi’s sarcoma | Red or blue plaques of variable size and shape; often enlarge, become nodular, and may ulcerate; usually indicative of HIV infection or non-Hodgkin’s lymphoma; rarely fatal, but may require treatment for comfort or cosmesis |
| Bacillary angiomatosis (skin and visceral lesions) | Skin and visceral lesions associated with HIV infection |
| Zidovudine pigmentation | Skin, nails, and oral mucosa |
1.1 Laryngitis¶
Characterized by hoarseness, breathy voice, and dry cough. Noninfectious causes include vocal trauma, GERD, allergies, and asthma. Immunosuppressed patients are at risk for viral infections (HSV, HIV, coxsackievirus).
1.2 Dental Development¶
Tooth formation begins in the 6th week of gestation. Primary teeth erupt by age 3, permanent teeth by age 14. Third molars (wisdom teeth) may erupt later. The tooth structure includes enamel, dentin, cementum, and periodontal ligament.
2. EPIDEMIOLOGY¶
Dental caries and periodontal disease are leading causes of tooth loss globally. Periodontal disease affects 40–50% of adults over 35 years old. Celiac disease is associated with enamel defects in children. HIV/AIDS is linked to increased risk of oral candidiasis, hairy leukoplakia, and Kaposi’s sarcoma. Pregnancy may produce gingivitis and localized pyogenic granulomas. Uncontrolled diabetes mellitus increases risk of severe periodontal disease.
2.1 Risk Factors¶
Xerostomia, diabetes, immunosuppression, smoking, alcohol use, and poor oral hygiene increase risk of dental caries and periodontal disease. HIV, cancer therapies, and bisphosphonates increase risk of oral infections and osteonecrosis.
2.2 Demographics¶
Periodontal disease is more prevalent in older adults, smokers, and individuals with diabetes. Celiac disease and Down syndrome are associated with enamel hypoplasia. HIV-positive individuals have higher rates of oral candidiasis and hairy leukoplakia.
3. ETIOLOGY & PATHOPHYSIOLOGY¶
Dental caries result from bacterial acid production (Streptococcus mutans) leading to enamel demineralization. Periodontal disease involves chronic inflammation from bacterial plaque, leading to gingival inflammation, periodontal ligament destruction, and alveolar bone resorption. HIV-associated oral lesions result from immune suppression and opportunistic infections. Bisphosphonates cause osteonecrosis of the jaw via impaired osteoclast function and reduced bone turnover.
3.1 Dental Caries¶
Bacterial metabolism of dietary sugars produces acids that demineralize enamel. Fissures and pits on occlusal surfaces are common sites. Untreated caries progress to dentin and pulp, causing irreversible pulpitis and periapical abscesses.
3.2 Periodontal Disease¶
Chronic inflammation from bacterial plaque leads to gingival inflammation, periodontal ligament destruction, and alveolar bone loss. Aggressive forms (e.g., aggressive periodontitis) are associated with genetic predisposition and immune dysregulation.
3.3 HIV-Related Lesions¶
Immune suppression allows opportunistic infections (e.g., candidiasis, hairy leukoplakia) and neoplasms (e.g., Kaposi’s sarcoma) to develop. HIV-associated periodontitis resembles acute necrotizing ulcerative gingivitis.
3.4 Bisphosphonate-Related Osteonecrosis¶
Inhibits osteoclast activity, leading to impaired bone remodeling. Risk factors include high-dose therapy, dental procedures, and concurrent use of corticosteroids or anticoagulants.
4. CLINICAL FEATURES¶
Oral manifestations vary by condition. Dental caries present with tooth decay, sensitivity, and pain. Periodontal disease features gingival inflammation, bleeding, and tooth mobility. Oral ulcers (e.g., aphthous, herpes) are painful and self-limiting. HIV-related lesions include candidiasis, hairy leukoplakia, and Kaposi’s sarcoma. Bisphosphonate-related osteonecrosis presents as exposed bone with pain and infection.
4.1 Dental Caries¶
Initial symptoms include demineralization of enamel, progressing to dentin and pulp. Pain may be intermittent or persistent, with sensitivity to cold, heat, or sweet foods.
4.2 Periodontal Disease¶
Gingival inflammation, bleeding, and periodontal pockets. Advanced stages show tooth mobility, alveolar bone loss, and systemic inflammation markers (e.g., elevated CRP).
4.3 Oral Ulcers¶
Recurrent aphthous ulcers are painful, self-limiting, and often associated with stress or nutritional deficiencies. Herpes simplex ulcers are preceded by prodromal symptoms and respond to antiviral therapy.
4.4 HIV-Related Lesions¶
Candidiasis presents as white plaques; hairy leukoplakia as white, non-removable lesions; Kaposi’s sarcoma as red or purple plaques. All are associated with immune suppression.
4.5 Bisphosphonate-Related Osteonecrosis¶
Exposed yellow-white bone in the mandible/maxilla, pain, and infection. Lesions may persist for months without healing.
5. DIFFERENTIAL DIAGNOSIS¶
Oral ulcers: aphthous, herpes, Behçet’s, Crohn’s, or malignancy. White lesions: leukoplakia, candidiasis, lichen planus, or oral cancer. Pigmented lesions: melanoma, nevi, or drug-induced pigmentation. Painful lesions: dental caries, periodontitis, or trigeminal neuropathy. Red lesions: erythroplakia, lichen planus, or cancer.
5.1 Ulcers¶
Distinguish between recurrent aphthous, herpes, and malignancy using morphology, duration, and response to treatment.
5.2 White Lesions¶
Differentiate leukoplakia (non-removable) from candidiasis (removable) and lichen planus (keratotic lesions).
5.3 Pigmented Lesions¶
Evaluate for melanoma (asymmetrical, irregular borders) vs. nevi (symmetrical, well-defined).
6. INVESTIGATIONS & DIAGNOSIS¶
Clinical examination, imaging (radiographs), and biopsy are essential. Diagnostic criteria include lesion morphology, duration, and response to treatment. Laboratory tests may reveal systemic conditions (e.g., HIV, diabetes). Histopathology confirms malignancy or inflammatory conditions.
6.1 Diagnostic Criteria¶
Use clinical features, lesion morphology, and response to treatment to differentiate benign vs. malignant lesions. For example, erythroplakia is high-risk for cancer and requires biopsy.
6.2 Imaging¶
Radiographs detect dental caries, periodontal bone loss, and salivary gland stones. CT/MRI may be used for assessing tumors or abscesses.
6.3 Biopsy¶
Indicated for persistent ulcers, white lesions, or suspected malignancy. Histopathology confirms diagnosis and guides treatment.
7. MANAGEMENT & TREATMENT¶
Treatment varies by condition. Dental caries require restoration or extraction. Periodontal disease involves scaling, root planing, and antimicrobial therapy. Oral ulcers are managed with topical corticosteroids or antivirals. HIV-related lesions require antiretroviral therapy and antifungal agents. Bisphosphonate-related osteonecrosis requires surgical debridement and antibiotics.
7.1 Dental Caries¶
Restoration with amalgam, composite, or gold. Antimicrobial therapy for secondary caries. Fluoride supplementation prevents recurrence.
7.2 Periodontal Disease¶
Scaling and root planing, antimicrobial rinses, and maintenance visits. Severe cases may require surgical intervention or extraction.
7.3 Oral Ulcers¶
Topical corticosteroids, antivirals (e.g., acyclovir), and analgesics. Avoid irritants and maintain oral hygiene.
7.4 HIV-Related Lesions¶
Antiretroviral therapy, antifungals for candidiasis, and monitoring for Kaposi’s sarcoma. Supportive care for opportunistic infections.
7.5 Bisphosphonate-Related Osteonecrosis¶
Surgical debridement, antibiotics, and discontinuation of bisphosphonates if possible. Pain management with NSAIDs or opioids.
8. PROGNOSIS & COMPLICATIONS¶
Early treatment of dental caries and periodontal disease prevents tooth loss. Untreated oral infections may lead to systemic complications (e.g., sepsis, osteomyelitis). HIV-related oral lesions improve with antiretroviral therapy. Bisphosphonate-related osteonecrosis may progress to chronic infection or jaw deformity.
8.1 Complications¶
Severe periodontal disease may lead to tooth loss and systemic inflammation. Oral infections can spread to adjacent structures (e.g., sinus, neck) or cause sepsis.
8.2 Prognosis¶
Early intervention improves outcomes for dental caries and periodontal disease. HIV-related oral lesions respond well to antiretroviral therapy. Bisphosphonate-related osteonecrosis has variable prognosis depending on treatment adherence.
9. SPECIAL CONSIDERATIONS¶
Pregnancy: Gingivitis and pyogenic granulomas are common. Diabetes: Increased risk of severe periodontal disease. HIV: Higher incidence of oral candidiasis and Kaposi’s sarcoma. Bisphosphonates: Risk of osteonecrosis requires preventive dental care. Elderly: Higher prevalence of xerostomia and periodontal disease.
9.1 Pregnancy¶
Gingivitis and localized pyogenic granulomas are common. Maintain oral hygiene and monitor for preterm labor.
9.2 Diabetes¶
Increased risk of periodontal disease and delayed healing. Strict glycemic control reduces complications.
9.3 HIV¶
Higher incidence of oral candidiasis, hairy leukoplakia, and Kaposi’s sarcoma. Antiretroviral therapy reduces opportunistic infections.
9.4 Bisphosphonates¶
Preventive dental care before therapy. Discontinue if osteonecrosis develops. Surgical debridement and antibiotics for infection.
9.5 Elderly¶
Higher prevalence of xerostomia, periodontal disease, and dental caries. Regular dental check-ups and fluoride supplementation are critical.
10. KEY POINTS & CLINICAL PEARLS¶
- Oral manifestations are critical for diagnosing systemic and local diseases. 2. Dental caries and periodontal disease are leading causes of tooth loss. 3. Oral ulcers and white lesions require biopsy for malignancy exclusion. 4. HIV-related oral lesions respond to antiretroviral therapy. 5. Bisphosphonate therapy increases risk of osteonecrosis of the jaw. 6. Maintain oral hygiene in patients with diabetes, HIV, or immunosuppression.