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23 Vascular Malformations andTumors
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Kaposiform Hemangioendothelioma (KH) andTufted
Angiomas (TA)
• KH is benign vascular tumors appearing as violaceous cutaneous nodules that
extend into deep tissues
• TA are more localized than KH and may not involve the skin
• Unlike infantile hemangioma, they do not spontaneously involute
• Have an endothelial and lymphatic component
• 42% present with Kasabach–Merrit phenomenon (see below)
• Treatment is with surgery ± chemotherapy
Kasabach–Merritt Phenomenon
• Severe thrombocytopenia that can occur in Kaposiform hemangioendothelioma
or tufted angioma
• Treated with chemotherapy to decrease the risk of bleeding and may require
transfusion to treat active bleeding
PHACES Syndrome
• Hemangioma associated with the following:
– Posterior fossa malformation
– Hemangioma
– Arterial abnormality and coarctation of the aorta
– Cardiac defects
– Eye abnormality
– Sternal clefting
Symptoms
• Developmental delay, seizure, congenital stroke
Work Up
• Ophthalmology, cardiac, and neurologic investigation

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B. M. Laitman et al.
Osler–Weber–Rendu Syndrome
• Aka Hereditary hemorrhagic telangiectasia (HHT)
• Autosomal dominant syndrome affecting blood vessels throughout body
Presentation
• Ectatic vessels of skin, mucous membranes, and viscera
• Epistaxis usually presenting symptom at puberty/early adulthood
• Skin telangiectasia can be punctate, linear, or spider like
• Mucous membranes of oral cavity, naso/oropharynx, and GI tract
• Associated with pulmonary, cerebral, and hepatic arteriovenous malformations
Diagnosis
• Hemorrhagic episodes (nasal cavity/nasopharynx, GI)
• Vascular ectasia
• Family history
Investigation
• Genetic testing available
• Must rule out cerebral and pulmonary AVM with imaging in children with family history
Treatment
• Supportive
• Electrocoagulation, photocoagulation (pulse-dye, Nd:YAG, argon beam)
– Bevacizumab (VEGF inhibitor) to reduce nosebleeds
Maffucci Syndrome
• Cavernous hemangiomas
• Chondrosarcoma (25% of cases)

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• Dyschondroplasia
• Visceral vascular lesions
Sturge–Weber Syndrome (SWS)
• Capillary malformation involving eye, skin, and leptomeninges
• Nevus Flammeus (port wine stain) is a cutaneous facial venous dilation, hallmark of SWS, and present at birth
• Seizure in up to 85% of patients, intellectual disability in 60%
• Requires ophthalmology and neurology workup
Further Reading
1. Alster TS, Railan D. Laser treatment of vascular birthmarks. J Craniofac Surg.
2006;17(4):720–3.
2. Antman K, Chang Y.Kaposi’s sarcoma. N Engl J Med. 2000;342(14):1027–38.
3. Buckmiller LM, etal. Propranolol for infantile hemangiomas: early experience at a tertiary
vascular anomalies center. Laryngoscope. 2010;120(4):676–81.
4. Chandler JR, etal. Nasopharyngeal angiobromas: staging and management. Ann Otol Rhinol
Laryngol. 1984;93(4 Pt 1):322–9.
5. Comi AM.Presentation, diagnosis, pathophysiology, and treatment of the neurological features of Sturge-weber syndrome. Neurologist. 2011;17(4):179–84.
6. de Serres LM, Sie KC, Richardson MA.Lymphatic malformations of the head and neck. A
proposal for staging. Arch Otolaryngol Head Neck Surg. 1995;121(5):577–82.
7. Dompmartin A, Vikkula M, Boon LM.Venous malformation: update on aetiopathogenesis,
diagnosis and management. Phlebology. 2010;25(5):224–35.
8. Duval M, Hwang E, Kilty SJ. Systematic review of treatment and prognosis of sinonasal
hemangiopericytoma. Head Neck. 2013;35(8):1205–10.
9. Enjolras O, etal. Infants with Kasabach-Merritt syndrome do not have “true” hemangiomas. J
Pediatr. 1997;130(4):631–40.
10. Frieden IJ, Reese V, Cohen D. PHACE syndrome. The association of posterior fossa brain
malformations, hemangiomas, arterial anomalies, coarctation of the aorta and cardiac defects,
and eye abnormalities. Arch Dermatol. 1996;132(3):307–11.
11. Kim MG, etal. The therapeutic effect of OK-432 (picibanil) sclerotherapy for benign neck
cysts. Laryngoscope. 2008;118(12):2177–81.
12. Kohout MP, etal. Arteriovenous malformations of the head and neck: natural history and management. Plast Reconstr Surg. 1998;102(3):643–54.
13. Mendenhall WM, etal. Cutaneous angiosarcoma. Am J Clin Oncol. 2006;29(5):524–8.
14. Mendenhall WM, etal. Head and neck paragangliomas. Head Neck. 2011;33(10):1530–4.
15. Nicolai P, etal. Endoscopic surgery for juvenile angiobroma: when and how. Laryngoscope.
2003;113(5):775–82.
16. Oldring D, Fisch U. Glomus tumors of the temporal region: surgical therapy. Am J Otol.
1979;1(1):7–18.
17. Pasini B, Stratakis CA.SDH mutations in tumorigenesis and inherited endocrine tumours: lesson
from the phaeochromocytoma-paraganglioma syndromes. J Intern Med. 2009;266(1):19–42.
18. Shovlin CL, etal. Diagnostic criteria for hereditary hemorrhagic telangiectasia (Rendu-Oslerweber syndrome). Am J Med Genet. 2000;91(1):66–7.

Chapter 24
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Cutaneous andTemporal Bone
Malignancies
KevinWong, HailunWang, BrettA.Miles, andMohemmedKhan
Pearls
• The most signicant risk factor to cutaneous malignancy is ultraviolet (UV)
radiation
• UVB light (200–320nm) more carcinogenic than UVA light (320–400nm)
• Basal cell carcinoma (BCC) most common cutaneous malignancy
• For melanoma, tumor depth is the most important prognostic factor for stage 1
and 2 disease; however, lymph node involvement is the most important factor for
stage 3 disease
• Squamous cell carcinoma (SCC) accounts for 70% of all tumors in the ear canal,
middle ear, and mastoid cavity
• Lateral temporal bone resection with or without auriculectomy, craniotomy,
mandibulectomy, neck dissection, or parotidectomy may be needed for advanced
temporal bone malignancies
K. Wong (*) · M. Khan
Department of Otolaryngology - Head and Neck Surgery, Icahn School of Medicine at the
Mount Sinai Hospital, New York, NY, USA
e-mail: Kevin.wong@mountsinai.org; mohemmed.khan@mountsinai.org
H. Wang
Department of Otolaryngology, University of Connecticut, Farmington, CT, USA
e-mail: hwang@prohealthmd.com
B. A. Miles
Otolaryngology Head and Neck Surgery, Oral and Maxillofacial Surgery, Northwell Health
System, New Hyde Park, NY, USA
e-mail: bmiles4@northwell.edu
© Springer Nature Switzerland AG 2023
F. Y. Lin, Z. M. Patel (eds.), ENT Board Prep,
https://doi.org/10.1007/978-3-031-26048-3_24
441

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• Adjuvant chemoradiotherapy may serve a role for advanced temporal bone
malignancies
• High-dose interferon-a 2b is the only FDA-approved adjuvant therapy for stage
III melanoma
K. Wong et al.
Anatomy
• Layers of skin (supercial to deep)
– Epidermis
Stratum corneum
Stratum granulosum
Stratum spinosum
Stratum germinativum/basale
– Dermis
Papillary dermis
Reticular dermis
– Melanocytes=melanin-producing cells located in stratum basale; responsible
for skin pigmentation
– Basal cells=small, round, epithelial cells found in stratum basale
• Temporal bone
– Four parts: squamous, mastoid, petrous, and tympanic
– Middle ear (points of spread)
Anterior: Eustachian tube
Medial: round window, oval window
Posterior: mastoid cavity
Superior: tegmen tympani
– External auditory canal (EAC)
Lateral 1/3: cartilaginous, cerumen glands (modied sebaceous glands)
Medial 2/3: bony, epithelium is adherent to periosteum, resistant to radial
spread of cancer
Huschke foramen: developmental defect in tympanic ring → anterior
extension of EAC malignancy to parotid
Fissures of Santorini: small dehiscences in anterior cartilage → direct
radial EAC tumor extension
• Lymphatic drainage
– Auricle and EAC: periparotid lymph nodes (LN), parotid gland, jugular chain,
LN overlying mastoid
– Medial EAC, middle ear: retropharyngeal nodes, deep jugular nodes

24 Cutaneous andTemporal Bone Malignancies
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Basal Cell Carcinoma
Epidemiology
• Most common skin cancer (65%)
• Worldwide incidence increasing
• Locally destructive but least likely to metastasize (risk 0.1%)
• Average age at diagnosis=64.4years old
Presentation
• Slowly enlarging “pearly” skin lesion, ulceration, papule/nodule within scar
• Local tissue destruction
• Fair skin (Fitzpatrick scale type 1) has 10–20× higher risk
Etiology/Pathogenesis
• Ultraviolet radiation
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– Sunlight, tanning booths, UV light therapy
Latency period 20–50years
– UV radiation→modify nucleic acids → activation of oncogenes or inactiva-
tion of tumor suppressor genes
– Other radiation=X-ray, Grenz-ray
• Gene mutations
– TP53 (tumor protein p53)
– Patched (PTCH)=tumor suppressor gene, Gorlin syndrome
– Patched homologue 1 (PTCH1) = loss-of-function mutation, sporadic and
familial cases of BCC
– Sonic hedgehog (SHH), smoothened (SMO), Gli = gain-of-function muta-
tions, sporadic and familial cases of BCC
• Immunosuppression
– 10× higher incidence of skin cancer in transplant patients
• Other causes:
– Arsenic ingestion (Fowler solution, water contaminant)
– Trauma

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– Xeroderma pigmentosum
Autosomal recessive
Photosensitive skin with multiple BCCs and other cutaneous malignancies
– Epidermodysplasia verruciformis (Treeman syndrome)
Autosomal recessive
Vulnerability to human papillomavirus leading to multiple scaly macules
and increased susceptibility to BCC, SCC, and warts
– Nevoid basal cell carcinoma syndrome (Gorlin syndrome)
Autosomal dominant
Defect in PTCH 1 tumor suppressor gene on chromosome 9 leading to
multiple BCCs, odontogenic keratocysts, hyperkeratosis of palms and
soles, intracranial calcications, brain tumors, and rib anomalies
– Bazex syndrome (paraneoplastic acrokeratosis)
Rare paraneoplastic syndrome characterized by follicular atrophoderma,
BCCs, and local anhidrosis
– Rombo syndrome
Autosomal dominant
Multiple BCC, trichoepithelioma, hypotrichosis, cyanosis of the hands
and feet
K. Wong et al.
– Alcohol consumption
Positive association between excessive alcohol use and incidence of
sunburns
Diagnosis
• Shave or punch biopsy
• Dermatoscopy: arborizing telangiectasia, blue-grey globules, blue-grey ovoid
nests, spoke wheel areas
• Histopathology
– Undifferentiated (solid type): basaloid cell proliferation with extension into
papillary dermis, palisading peripheral columnar cells
– Differentiated: keratotic (hairlike structures), cystic (sebaceous, gland-like
structures), adenoid (tubular structures, lacelike pattern)

24 Cutaneous andTemporal Bone Malignancies
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• High-risk features:
– Tumor >2mm thickness or Clark level≥IV (see Breslow and Clark below)
– Perineural invasion (PNI)
– High-risk anatomic area: lip (vermilion and hair-bearing), ears, temple, pre-
and postauricular region, central face, eyelids, nose, lips, chin, mandible
– Poorly differentiated or undifferentiated histology
– Recurrence
• Types (multiple)
– Nodular: low risk, most common, pearly/translucent, rolled edges, telangiec-
tasia, central depression, ± ulceration
– Supercial: low risk, scaly, pink, patch or plaque, more common on trunk/
extremities
– Morpheaform: high risk, at or depressed, whitish scar; aggressive, worst
prognosis
– Pigmented: similar to nodular type, more pigmented, resembles melanoma or
benign nevus
– Fibroepithelioma: raised, rm, pedunculated or sessile, red with smooth surface
– High risk: basosquamous, micronodular, mixed inltrative, sclerosing
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Staging
American Joint Committee onCancer (AJCC) Eighth Edition Staging
forNon-melanoma Cutaneous Carcinoma oftheHead andNeck
Primary tumor (T)
T Criteria
TX Primary tumor cannot be assessed
Tis Carcinoma in situ
T1 ≤2cm
T2 >2cm and≤4cm
T3 >4cm or minor bone erosion or perineural invasion or deep invasion
T4 Cortical bone/marrow, skull base, and/or skull base foramen invasion
T4a Gross cortical bone/marrow invasion
T4b Skull base and/or skull base foramen involvement
a
Deep invasion dened as invasion beyond subcutaneous fat or>6mm
a

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Regional lymph node (N)
Clinical N (cN)
N N criteria
NX Lymph nodes cannot be assessed
N0 No regional lymph node metastasis
N1 Single ipsilateral lymph node ≤3cm and ENE(−)
N2a Single ipsilateral lymph node 3-6cm and ENE(−)
N2b Multiple ipsilateral lymph nodes <6cm and ENE(−)
N2c Bilateral or contralateral lymph node(s) >6cm and ENE(−)
N3a Single ipsilateral lymph node >6cm and ENE(−)
N3b Any lymph node with ENE(+)
Pathological N (pN)
N N criteria
NX Lymph nodes cannot be assessed
N0 No regional lymph node metastasis
N1 Single ipsilateral lymph node ≤3cm and ENE(−)
N2a Single ipsilateral lymph node ≤3cm and ENE(+) OR single ipsilateral lymph node
3–6cm and ENE(−)
N2b Multiple ipsilateral lymph nodes <6cm and ENE(−)
N2c Bilateral or contralateral lymph node(s) <6cm and ENE(−)
N3a Single lymph node >6cm and ENE(−)
N3b Single ipsilateral node >3cm and ENE(+) OR multiple lymph nodes of any size, any with
ENE(+) OR single contralateral node of any size and ENE(+)
K. Wong et al.
Distant metastasis (M)
M category M criteria
M0 No distant metastasis
M1 Distant metastasis
Final staging
T N M Stage
Tis N0 M0 0
T1 N0 M0 I
T2 N0 M0 II
T3 N0 M0 III
T1 N1 M0 III
T2 N1 M0 III
T3 N1 M0 III
T1 N2 M0 IV

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Final staging
T N M Stage
T2 N2 M0 IV
T3 N2 M0 IV
Any T N3 M0 IV
T4 Any N M0 IV
Any T Any N M1 IV
Treatment Recommendations
• Overview
– Prognosis excellent, survival approaches 100% if no spread to other sites
– Metastasis rare; common sites=lymph nodes, lungs, bones
– 5-year risk of new primary=50%
– 5-year recurrence=5% (depending on treatment modality)
• Surgical excision
– Gold standard
– 4- to 5-mm margins for low-risk disease (<20mm)
– 5- to 10-mm margins for high-risk disease (>20mm)
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Morphoeic: 82% cleared with 5 mm margins, >95% cleared with
13–15mm margins
• Mohs micrographic surgery (MMS)
– Indicated for cosmetically sensitive and high-risk disease (size >2cm, ill-
dened borders, recurrence, PNI, or high-risk anatomic sites such as central
face, eyes, nose, lips, ears)
• Radiotherapy (RT)
– Higher recurrence rate than surgery, less acceptable cosmetic outcomes
– Primary radiation for nonresectable disease
– Adjuvant radiation indicated for positive margins and PNI
• Photodynamic therapy
– Methyl aminolevulinate→cancer cell uptake→protoporphyrin IX→visible
red light→generate free radicals and oxygen species→cytotoxic
– Better cosmesis but higher recurrence rate compared to surgery
• Curettage and cautery
– Indicated for low-risk disease
– High recurrence rate; not as commonly used
– Consider in small nodular or supercial lesions
– Poor outcomes for high-risk lesions
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