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DISEASES OF
DISEASES OF
DISEASES OF
DISEASES OF
Dr.Mohammad hossein Taziki
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Diseases of the SALIVARY GLAND:Diseases of the SALIVARY GLAND:
1. Introduction2. Evaluation of Salivary Disease3. Inflammatory Diseases4. Salivary Gland Stones (Sialolithiasis)5. Salivary Retentions Cysts and Mucous
Cysts6. Salivary Fistulas and Sialoceles7. Salivary Gland Tumors8. Rare Autoimmune Diseases9. Salivary Diseases in Childhood
1. Introduction2. Evaluation of Salivary Disease3. Inflammatory Diseases4. Salivary Gland Stones (Sialolithiasis)5. Salivary Retentions Cysts and Mucous
Cysts6. Salivary Fistulas and Sialoceles7. Salivary Gland Tumors8. Rare Autoimmune Diseases9. Salivary Diseases in Childhood
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INTRODUCTIONINTRODUCTION
a) Major groups of salivary glands which are consists three major glands, the parotid, submandular and sublingual glands. The parotid produces
mucous secretions. The parotid and sub-mandular glands each drain into the mouth in a single long duct.
Where as the sublingual glands drain via many small ducts.
a) Major groups of salivary glands which are consists three major glands, the parotid, submandular and sublingual glands. The parotid produces
mucous secretions. The parotid and sub-mandular glands each drain into the mouth in a single long duct.
Where as the sublingual glands drain via many small ducts.
There are Major and Minor groups of Salivary Glands:
There are Major and Minor groups of Salivary Glands:
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b) Minor groups of salivary glands may be found in the lips, cheeks, tongue, floor of the mouth, palate, larynx, trachea and tonsils and lacrymal gland. And all are liable to undergo the same pathological change as the major groups.
b) Minor groups of salivary glands may be found in the lips, cheeks, tongue, floor of the mouth, palate, larynx, trachea and tonsils and lacrymal gland. And all are liable to undergo the same pathological change as the major groups.
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FUNCTIONS: FUNCTIONS:
The Salivary glands secrets saliva which contains the enzyme amylase (protein of molecular wt. 50,000. Containing calcium which splits starch and glycogen into maltose) all the secretory activity is regulated mainly by parasympathetic nerves.
The Salivary glands secrets saliva which contains the enzyme amylase (protein of molecular wt. 50,000. Containing calcium which splits starch and glycogen into maltose) all the secretory activity is regulated mainly by parasympathetic nerves.
The total salivary secretion is between 1,000 ml – 1,500 ml daily and is almost all the result of stimulation.
The total salivary secretion is between 1,000 ml – 1,500 ml daily and is almost all the result of stimulation.
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Deficiency Deficiency
Deficiency oDeficiency of the saliva cause dry mouth (xerostormia)
eg: Dehydration, Sjogren’s syndrome, atropine which blocks the action of parasympathetic nerves on the glands.
Deficiency oDeficiency of the saliva cause dry mouth (xerostormia)
eg: Dehydration, Sjogren’s syndrome, atropine which blocks the action of parasympathetic nerves on the glands.
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Evaluation of the SALIVARY GLANDS Diseases:
Evaluation of the SALIVARY GLANDS Diseases:
a. History: Age, pain, swelling, duration etc..
b. Clinical Examination: (Position (site), colour, temperature, tenderness, shape, surface. Edge, composition, relation, lymphatic drainage.
c. Investigations:
I. Blood (CBC), Hb, Urea and Electrolytes, Blood Sugar etc..
II. Constituents of saliva in inflammatory diseases. The sodium increased while the phosphate level is decreased. The albumin usually very low but increased in Sjogren’s diseases, also antibodies can be demonstrated.
a. History: Age, pain, swelling, duration etc..
b. Clinical Examination: (Position (site), colour, temperature, tenderness, shape, surface. Edge, composition, relation, lymphatic drainage.
c. Investigations:
I. Blood (CBC), Hb, Urea and Electrolytes, Blood Sugar etc..
II. Constituents of saliva in inflammatory diseases. The sodium increased while the phosphate level is decreased. The albumin usually very low but increased in Sjogren’s diseases, also antibodies can be demonstrated. Contd….
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III. Radiology:a)a) Plain X-ray (20% of salivary Plain X-ray (20% of salivary
calculi are non-opaque calculi are non-opaque to X-rays)to X-rays)
b)b) SialogramSialogramRadiology is helpful in the diagnosis of;
CalculiCalculiDegree of glandular damage Degree of glandular damage
in in obstructionobstructionDuct stricturesDuct stricturesDuct fistulas and sialocelesDuct fistulas and sialoceles
III. Radiology:a)a) Plain X-ray (20% of salivary Plain X-ray (20% of salivary
calculi are non-opaque calculi are non-opaque to X-rays)to X-rays)
b)b) SialogramSialogramRadiology is helpful in the diagnosis of;
CalculiCalculiDegree of glandular damage Degree of glandular damage
in in obstructionobstructionDuct stricturesDuct stricturesDuct fistulas and sialocelesDuct fistulas and sialoceles
Contd….
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IV. Ultrasound distinguishes solid tumour from the rare cyst and sialocales.
V.V. Radio Isotopes: Tc 99 warthins tumours may take up more of the isotopes and appear as (hot) lesion. Carcinoma take up very little and appear cold.
VI. CAT scanning has definite place in the assessment of deep parotid tumours.
IV. Ultrasound distinguishes solid tumour from the rare cyst and sialocales.
V.V. Radio Isotopes: Tc 99 warthins tumours may take up more of the isotopes and appear as (hot) lesion. Carcinoma take up very little and appear cold.
VI. CAT scanning has definite place in the assessment of deep parotid tumours.
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Inflammatory diseases of the salivary glands:Inflammatory diseases of the salivary glands:
Acute bacterial sialadenitis
Chronic sialadenitis
Recurrent sialadenitis
Mumps
Post operative usually parotid
Autoimmune diseases
Acute bacterial sialadenitis
Chronic sialadenitis
Recurrent sialadenitis
Mumps
Post operative usually parotid
Autoimmune diseases
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Acute Bacterial Sialadenitis:Acute Bacterial Sialadenitis:
This condition is now uncommonalmost always occurring in elderly or
debilitated patients with poor oral hygiene.
Dehydrations and reduced salivary flow encourage ascending infection.
The parotid gland is usually involved the result is painful, unilateral swelling accompanied by trismus, pyrexia and tachycardia.
This condition is now uncommonalmost always occurring in elderly or
debilitated patients with poor oral hygiene.
Dehydrations and reduced salivary flow encourage ascending infection.
The parotid gland is usually involved the result is painful, unilateral swelling accompanied by trismus, pyrexia and tachycardia.
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On Examination:On Examination:
The parotid gland is tender and diffusely enlarged and purulent discharge can be seen oozing (or can be milked) from the parotid duct orifice (Stensen duct).
The parotid gland is tender and diffusely enlarged and purulent discharge can be seen oozing (or can be milked) from the parotid duct orifice (Stensen duct).
TREATMENT:TREATMENT:TREATMENT:TREATMENT:
a. Parenteral antibiotics.
b. If parotid abscess has already formed surgical drainage should be performed.
a. Parenteral antibiotics.
b. If parotid abscess has already formed surgical drainage should be performed.
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CHRONIC SIALADENITISCHRONIC SIALADENITIS
Prolonged obstruction of major salivary gland by ductal calculus causes chronic inflammation of the gland.
The glandular secretory element, progressively atrophy and are replaced by fibrous and adipose tissues.
Prolonged obstruction of major salivary gland by ductal calculus causes chronic inflammation of the gland.
The glandular secretory element, progressively atrophy and are replaced by fibrous and adipose tissues.
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Chronic Sialadenitis (cont’d)Chronic Sialadenitis (cont’d)
The ducts system becomes dilated, fibrotic and infiltrated by chronic inflammatory cells.
Chronic Sialadenitis and salivary calculi usually involved the submandibular gland. The submandibular gland swollen and there may be purulent discharge from the duct. The swelling is made worse by taking food.
TREATMENT: by removing the duct obstruction. Antibiotics may be necessary.
The ducts system becomes dilated, fibrotic and infiltrated by chronic inflammatory cells.
Chronic Sialadenitis and salivary calculi usually involved the submandibular gland. The submandibular gland swollen and there may be purulent discharge from the duct. The swelling is made worse by taking food.
TREATMENT: by removing the duct obstruction. Antibiotics may be necessary.
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RECURRENT SIALADENITISRECURRENT SIALADENITIS
Uncommon condition which may occur at any age.
Usually affects the parotid glands are Usually affects the parotid glands are subject to to recurrent attacks of pain and swelling caused by recurrent attacks of pain and swelling caused by combination of obstruction and infection of the combination of obstruction and infection of the
glands.glands.
Uncommon condition which may occur at any age.
Usually affects the parotid glands are Usually affects the parotid glands are subject to to recurrent attacks of pain and swelling caused by recurrent attacks of pain and swelling caused by combination of obstruction and infection of the combination of obstruction and infection of the
glands.glands.
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RECURRENT SIALADENITIS (cont’d)RECURRENT SIALADENITIS (cont’d)
There may be an associated dilatation of the duct system and alveoli of the glands with terminal sacculation (Sialectasis) associated with
strictures of the duct or stones. These changes best demonstrated by
performing Sialogram.
There may be an associated dilatation of the duct system and alveoli of the glands with terminal sacculation (Sialectasis) associated with
strictures of the duct or stones. These changes best demonstrated by
performing Sialogram.
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RECURRENT SIALADENITIS RECURRENT SIALADENITIS
Treatment:Treatment:
a.a. Antibiotics with careful attention to oral hygiene..
b.b. Associated strictures is treated with dilatation.
c.c. If stones present these must be removed.
b.b. Intractable causes may required surgical removal of the gland.
Treatment:Treatment:
a.a. Antibiotics with careful attention to oral hygiene..
b.b. Associated strictures is treated with dilatation.
c.c. If stones present these must be removed.
b.b. Intractable causes may required surgical removal of the gland.
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MUMPS MUMPS
Viral infectious disease attack the parotid gland mainly incubation period (17-21days) which is usually bilateral usually occur in children. Fever, painful swelling and difficulty in mastication.
Viral infectious disease attack the parotid gland mainly incubation period (17-21days) which is usually bilateral usually occur in children. Fever, painful swelling and difficulty in mastication.
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MUMPS (cont’d)
MUMPS (cont’d)
* Mumps is interest to the Surgeon for the following reasons:
* Occasional cause of acute orchitis especially when mumps occurs in adolescent or young adults pain and swelling in the testicle occur 7-10 days after the onset of parotid and may lead to testicular atrophy.
TREATMENT: by rest and sedation.
* Mumps is interest to the Surgeon for the following reasons:
* Occasional cause of acute orchitis especially when mumps occurs in adolescent or young adults pain and swelling in the testicle occur 7-10 days after the onset of parotid and may lead to testicular atrophy.
TREATMENT: by rest and sedation.
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POST OPERATIVE PAROTITIS POST OPERATIVE PAROTITIS
** Ascending infection of the parotid gland via its duct may occur after major surgical procedures.
Aetiological factors include dental sepsis, Aetiological factors include dental sepsis, dehydration.dehydration.The presence of nasogastric tube for The presence of nasogastric tube for prolonged period and poor oral hygiene.prolonged period and poor oral hygiene.
Clinically there is swelling andClinically there is swelling and pain in one or pain in one or both parotid gland and there may be both parotid gland and there may be
discharge discharge from the duct.from the duct.
** Ascending infection of the parotid gland via its duct may occur after major surgical procedures.
Aetiological factors include dental sepsis, Aetiological factors include dental sepsis, dehydration.dehydration.The presence of nasogastric tube for The presence of nasogastric tube for prolonged period and poor oral hygiene.prolonged period and poor oral hygiene.
Clinically there is swelling andClinically there is swelling and pain in one or pain in one or both parotid gland and there may be both parotid gland and there may be
discharge discharge from the duct.from the duct.
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POST OPERATIVE PAROTITIS POST OPERATIVE PAROTITIS
TREATMENT: (Rare nowadays) However :
a. Prophylaxis important and elimination of the above etiological factors.
b. Patient must be kept fully hydrated the flow encourage suckling, sweets or chewing gums.
c. Antibiotic therapy.
d. Occasionally surgical drainage required.
TREATMENT: (Rare nowadays) However :
a. Prophylaxis important and elimination of the above etiological factors.
b. Patient must be kept fully hydrated the flow encourage suckling, sweets or chewing gums.
c. Antibiotic therapy.
d. Occasionally surgical drainage required.
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SALIVARY GLAND STONES(SIALOLITHIASIS)SALIVARY GLAND STONES(SIALOLITHIASIS)
I. Parotid calculus is rare and difficult to diagnose since the stone is so small that it cannot be demonstrated by radiography and sialography is usually necessary.
II. Submandibular calculus: very common being more than 50 times than parotid this is due to:
I. Parotid calculus is rare and difficult to diagnose since the stone is so small that it cannot be demonstrated by radiography and sialography is usually necessary.
II. Submandibular calculus: very common being more than 50 times than parotid this is due to:
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SALIVARY GLAND STONES(SIALOLITHIASIS)SALIVARY GLAND STONES(SIALOLITHIASIS)
a. The secretion of the gland is thick and viscid as compared to watery secretion of the parotid.
b. The upward course of the submandibular duct does not provide adequate drainage.
c. The duct orifice lies in the floor of the mouth where foreign bodies may
lodge into it and provide nucleus for stone formation.
a. The secretion of the gland is thick and viscid as compared to watery secretion of the parotid.
b. The upward course of the submandibular duct does not provide adequate drainage.
c. The duct orifice lies in the floor of the mouth where foreign bodies may
lodge into it and provide nucleus for stone formation.
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PATHOLOGY:PATHOLOGY: The stones may be singly or multiple
and may lie in the gland, duct or both.
They contain high proportion of calcium.
The gland often enlarged and inflammed as chronic irritation and obstruction by the stone.
** Investigation:Investigation: Plain X-Ray will demonstrate most calculi.
Sialography.
The stones may be singly or multiple and may lie in the gland, duct or both.
They contain high proportion of calcium.
The gland often enlarged and inflammed as chronic irritation and obstruction by the stone.
** Investigation:Investigation: Plain X-Ray will demonstrate most calculi.
Sialography.
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SALIVARY GLAND STONES(SIALOLITHIASIS)SALIVARY GLAND STONES(SIALOLITHIASIS)
Clinical Features:Clinical Features:
Patient complaint recurrent attacks of pain and swelling in the region of the gland during meals.
• Occasionally present with acute or chronic bacterial infection (Sialadenitis).
• On Examination:On Examination:
* * The gland is enlarged and firm and tender .
** If the stone lies in the duct it can be felt or even seen in the floor of the mouth.
Clinical Features:Clinical Features:
Patient complaint recurrent attacks of pain and swelling in the region of the gland during meals.
• Occasionally present with acute or chronic bacterial infection (Sialadenitis).
• On Examination:On Examination:
* * The gland is enlarged and firm and tender .
** If the stone lies in the duct it can be felt or even seen in the floor of the mouth.
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Salivary Retention Cysts: Salivary Retention Cysts: Large retention cysts sometimes develop in the floor of the mouth. They reach several centimeters in diameter and are known as ‘Ranulae’.RANULAE:RANULAE: Typically appear as blue-grey dome like swelling beneath the tongue in the floor of the mouth.
They are more common seen in neonates and children.
It may burst spontaneously discharging it content and collapsing.
They are painless and can recurr.
TREATMENT:TREATMENT: Marsupialisations with de-roofing the cyst so that it opens into the floor of the mouth.
Large retention cysts sometimes develop in the floor of the mouth. They reach several centimeters in diameter and are known as ‘Ranulae’.RANULAE:RANULAE: Typically appear as blue-grey dome like swelling beneath the tongue in the floor of the mouth.
They are more common seen in neonates and children.
It may burst spontaneously discharging it content and collapsing.
They are painless and can recurr.
TREATMENT:TREATMENT: Marsupialisations with de-roofing the cyst so that it opens into the floor of the mouth.
Note: They are painless and can recurNote: They are painless and can recur
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SALIVARY MUCOUS CYSTS: SALIVARY MUCOUS CYSTS:
They are arising from minor mucous secreting gland in the lower lip. They sometimes spontaneously disappear but excision is the treatment.
They are arising from minor mucous secreting gland in the lower lip. They sometimes spontaneously disappear but excision is the treatment.
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SALIVARY FISTULAS:SALIVARY FISTULAS:
Submandular fistulas uncommon (rare) and always arises in the glandSubmandular fistulas uncommon (rare) and always arises in the gland
TREATMENT:TREATMENT: by excision of the by excision of the glandgland
TREATMENT:TREATMENT: by excision of the by excision of the glandgland
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PAROTID FISTULA: PAROTID FISTULA: May follow penetrating wound or incision of parotid abscess.
It may arise from the main duct or from the ductules within the gland
May follow penetrating wound or incision of parotid abscess.
It may arise from the main duct or from the ductules within the gland
TREATMENT:TREATMENT: Sialography is performed to establish the exact site or origin of the fistula
a.a. Fistula of the gland may be X-ray therapy Fistula of the gland may be X-ray therapy to the gland.to the gland.
b.b. Fistula of the duct treated by anastomosis Fistula of the duct treated by anastomosis (construction).(construction).
c.c. If fail superficial parotidectomy.If fail superficial parotidectomy.
a.a. Fistula of the gland may be X-ray therapy Fistula of the gland may be X-ray therapy to the gland.to the gland.
b.b. Fistula of the duct treated by anastomosis Fistula of the duct treated by anastomosis (construction).(construction).
c.c. If fail superficial parotidectomy.If fail superficial parotidectomy.
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SALIVARY GLAND TUMORS: SALIVARY GLAND TUMORS:
Tumors of the salivary glands are commonest in the parotid much less common in the submandular gland and very rare in the sublingual and minor salivary glands. They are difficult to classify as benign and malignant since all of them tend to recur after removal.
Tumors of the salivary glands are commonest in the parotid much less common in the submandular gland and very rare in the sublingual and minor salivary glands. They are difficult to classify as benign and malignant since all of them tend to recur after removal.
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Classification: Classification: I.I. Benign: Benign: a) Mixed salivary tumor or pleomorphic
adenomab) Adenolymphoma or warthin’s tumorc) Oncocytomad) Monomorphic adenoma
II. Malignant:II. Malignant: a) Primary carcinoma
b) Secondary carcinoma – direct invasion from skin or from secondarily involved lymph nodes
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PLEOMORPHIC ADENOMA PLEOMORPHIC ADENOMA The most common benign neoplasms of salivary glands. Most pleomorphic present in middle age but may occur at any age and equally in either sex.
It usually remains benign for many years but unless adequately removed it tend to recur and to turn malignant.
Clinically: a) Slow growing painless lump mostly in parotid and
some in submandular and few in the minor glands.
b) Mobile with well defined edge and smooth or lobulated surface.
Definitive diagnosis can only be made histologically after excision
Treatment surgical removal (superficial parotidectomy)
The most common benign neoplasms of salivary glands. Most pleomorphic present in middle age but may occur at any age and equally in either sex.
It usually remains benign for many years but unless adequately removed it tend to recur and to turn malignant.
Clinically: a) Slow growing painless lump mostly in parotid and
some in submandular and few in the minor glands.
b) Mobile with well defined edge and smooth or lobulated surface.
Definitive diagnosis can only be made histologically after excision
Treatment surgical removal (superficial parotidectomy)
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ADENOLYMPHOMA (Warthin’s Tumor) ADENOLYMPHOMA (Warthin’s Tumor)
Benign tumor less than 10% of salivary tumor. It occur in parotid glands only between the ages 40-60 years male strong predominance. They are sometimes bilateral.
Clinically:Clinically: The tumor present as painless cystic swelling
Treatment:Treatment: Surgical removal (superficial parotidectomy)
Benign tumor less than 10% of salivary tumor. It occur in parotid glands only between the ages 40-60 years male strong predominance. They are sometimes bilateral.
Clinically:Clinically: The tumor present as painless cystic swelling
Treatment:Treatment: Surgical removal (superficial parotidectomy)
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Malignant Salivary Tumors: Malignant Salivary Tumors:
The malignat tumors are –1. Mucoepidermoid Carcinoma2. Adeno Cystic Carcinoma3. Adeno Carcinoma4. Squamous Cell Carcinoma5. Carcinoma in Pleomorphic Adenoma
(Malignant Mixed Tumor)6. Acinic Cell Tumor7. Malignant Lymphoma8. Anoplastic Carcinoma
The malignat tumors are –1. Mucoepidermoid Carcinoma2. Adeno Cystic Carcinoma3. Adeno Carcinoma4. Squamous Cell Carcinoma5. Carcinoma in Pleomorphic Adenoma
(Malignant Mixed Tumor)6. Acinic Cell Tumor7. Malignant Lymphoma8. Anoplastic Carcinoma
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Clinical Features:Clinical Features:
Affects elderly people and common in parotid with equal sex distribution.
The tumor forms rapidly growing hard swelling with ill defined edges and nodular surface.
Soon becomes fixed with pain-facial palsy, and lymph nodes enlargement but distant metastasis are rare.
Clinical Features:Clinical Features:
Affects elderly people and common in parotid with equal sex distribution.
The tumor forms rapidly growing hard swelling with ill defined edges and nodular surface.
Soon becomes fixed with pain-facial palsy, and lymph nodes enlargement but distant metastasis are rare.
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TREATMENT:TREATMENT:
1. Operable Tumors: a) Radical parotidectomy combined with
block dissection of the cervical lymph node.b) Post-operative radiotherapyc) When the tumor arises in the other site of salivary tissues wide local excision is performed with block dissection of lymph node.
2. Non operative tumor with infiltration to the skull and pharynx.
Radiotherapy can be given.
1. Operable Tumors: a) Radical parotidectomy combined with
block dissection of the cervical lymph node.b) Post-operative radiotherapyc) When the tumor arises in the other site of salivary tissues wide local excision is performed with block dissection of lymph node.
2. Non operative tumor with infiltration to the skull and pharynx.
Radiotherapy can be given.
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Complication of Parotidectomy:Complication of Parotidectomy:
1) Damage to facial nerve causes facial palsy or damage to its branches
2) Salivary fistula
3) Frey’s syndrome
1) Damage to facial nerve causes facial palsy or damage to its branches
2) Salivary fistula
3) Frey’s syndrome
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Autoimmune salivary gland disorder or disease: Autoimmune salivary gland disorder or disease:
There are two syndromes of slow, progressive, painless enlargement of salivary glands.
Biopsy reveals the swelling is caused by replacement of glandular tissues by lymphoid tissue and fibrosis.
There are two syndromes of slow, progressive, painless enlargement of salivary glands.
Biopsy reveals the swelling is caused by replacement of glandular tissues by lymphoid tissue and fibrosis.
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MICKULICZ’s SYNDROME MICKULICZ’s SYNDROME
1) Symmetrical enlargement of salivary glands
2) Enlargement of the lachrymal glands
3) Dry mouth
1) Symmetrical enlargement of salivary glands
2) Enlargement of the lachrymal glands
3) Dry mouth
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SJOGREN’s SYNDROME SJOGREN’s SYNDROME
All the above conditions plus;
Dry eyes
Generalized arthritis
All the above conditions plus;
Dry eyes
Generalized arthritis
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Salivary diseases in childhood: Salivary diseases in childhood:
1) Mumps: Viral sialaidenitis both parotid become painful and swollen and accompanied by general malaise and subsided in few days.
2) Recurrent swellings of the parotid: Due to obstruction of one or both parotid ducts. Symptomatic treatment and reassurance of the parents. There is no place for surgery.
1) Mumps: Viral sialaidenitis both parotid become painful and swollen and accompanied by general malaise and subsided in few days.
2) Recurrent swellings of the parotid: Due to obstruction of one or both parotid ducts. Symptomatic treatment and reassurance of the parents. There is no place for surgery.
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3) Tumors: The commonest tumor in infants is haemangioma found in 2-3 years old child. The tumor nearly undergo natural resolution.
4) Lymphangiomas: They have tendency to enlarged and infection. The treatment partial resection.
3) Tumors: The commonest tumor in infants is haemangioma found in 2-3 years old child. The tumor nearly undergo natural resolution.
4) Lymphangiomas: They have tendency to enlarged and infection. The treatment partial resection.
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