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| Width = | | Width = | ||
| Caption = Adenoid cystic carcinoma. [[H&E stain]]. | | Caption = Adenoid cystic carcinoma. [[H&E stain]]. | ||
| Micro = cribriform architecture (other patterns: solid, cords, (bilayered) tubules), cystic spaces filled with basophilic material, scant cytoplasm in most cells, nucleus - small, hyaline stroma | | Micro = [[cribriform architecture]] (other patterns: solid, cords, (bilayered) tubules), cystic spaces filled with basophilic material, scant cytoplasm in most cells, nucleus - small, hyaline stroma | ||
| Subtypes = | | Subtypes = | ||
| LMDDx = [[pleomorphic adenoma]], [[epithelial-myoepithelial carcinoma]] | | LMDDx = [[pleomorphic adenoma]], [[epithelial-myoepithelial carcinoma]], [[intraductal carcinoma of the salivary gland|intraductal carcinoma]] | ||
| Stains = | | Stains = | ||
| IHC = | | IHC = | ||
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| Gross = | | Gross = | ||
| Grossing = | | Grossing = | ||
| Site = [[salivary gland]], [[breast]], [[lung]], [[skin]], others | | Site = [[salivary gland]], [[breast]], [[lung]], [[skin]], [[trachea]], others | ||
| Assdx = | | Assdx = | ||
| Syndromes = | | Syndromes = | ||
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==Microscopic== | ==Microscopic== | ||
Features: | Features: | ||
*Cribriform architecture ''or'' pseudoglandular spaces (classic pattern) - '''important feature'''. | *[[Cribriform architecture]] ''or'' pseudoglandular spaces (classic pattern) - '''important feature'''. | ||
**Other patterns: solid, cords, (bilayered) tubules. | **Other patterns: solid, cords, (bilayered) tubules. | ||
**Cystic spaces filled with basophilic material (that is PAS +ve) - '''key feature'''. | **Cystic spaces filled with basophilic material (that is PAS +ve) - '''key feature'''. | ||
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**Basaloid [[squamous cell carcinoma]]. | **Basaloid [[squamous cell carcinoma]]. | ||
**[[Basal cell carcinoma]] (BCC). | **[[Basal cell carcinoma]] (BCC). | ||
*[[Perineural invasion]] is usually present. | |||
**If it is ''not'' one should consider other diagnoses. | |||
DDx: | DDx: | ||
*[[Pleomorphic adenoma]], esp. if encapsulated. | *[[Pleomorphic adenoma]], esp. if encapsulated. | ||
*[[Epithelial-myoepithelial carcinoma]] - esp. for AdCC tubular variant. | *[[Epithelial-myoepithelial carcinoma]] - esp. for AdCC tubular variant. | ||
*[[Human papillomavirus-related multiphenotypic sinonasal carcinoma]] (previously known as [[human papillomavirus-related carcinoma with adenoid cystic-like features]]). | |||
*[[Intraductal carcinoma of the salivary gland]]. | |||
===Images=== | ===Images=== | ||
<gallery> | <gallery> | ||
Image:Adenoid cystic carcinoma - low mag.jpg | AdCC - low mag. (WC/Nephron) | Image:Adenoid cystic carcinoma - low mag.jpg | AdCC - low mag. (WC/Nephron) | ||
Image:Adenoid_cystic_carcinoma_-_intermed_mag.jpg | AdCC - intermed. mag. (WC/Nephron) | Image:Adenoid_cystic_carcinoma_-_intermed_mag.jpg | AdCC - intermed. mag. (WC/Nephron) | ||
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Image:Adenoid cystic carcinoma - very high mag.jpg | AdCC - very high mag. (WC/Nephron) | Image:Adenoid cystic carcinoma - very high mag.jpg | AdCC - very high mag. (WC/Nephron) | ||
Image:Adenoid_cystic_carcinoma_-a-_very_high_mag.jpg | AdCC - very high mag. (WC/Nephron) | Image:Adenoid_cystic_carcinoma_-a-_very_high_mag.jpg | AdCC - very high mag. (WC/Nephron) | ||
File:Breast_AdenoidCysticCarcinoma_SolidType_14BR***.jpg | AdCC of breast - solid type (WC/Sarahkayb) | |||
</gallery> | |||
<gallery> | |||
Image: Adenoid cystic carcinoma of the trachea -- low mag.jpg | AdCC [[trachea]] - low mag. | |||
Image: Adenoid cystic carcinoma of the trachea -- intermed mag.jpg | AdCC trachea - intermed. mag. | |||
Image: Adenoid cystic carcinoma of the trachea -- high mag.jpg | AdCC trachea - high mag. | |||
Image: Adenoid cystic carcinoma of the trachea -- very high mag.jpg | AdCC trachea - very high mag. | |||
Image: Adenoid cystic carcinoma of the trachea - alt -- very high mag.jpg | AdCC trachea - very high mag. | |||
</gallery> | </gallery> | ||
===Grading=== | ===Grading=== | ||
Based on solid component: | Based on solid component: | ||
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==IHC== | ==IHC== | ||
Features:<ref name=pmid19360297>{{Cite journal | last1 = Sequeiros-Santiago | first1 = G. | last2 = García-Carracedo | first2 = D. | last3 = Fresno | first3 = MF. | last4 = Suarez | first4 = C. | last5 = Rodrigo | first5 = JP. | last6 = Gonzalez | first6 = MV. | title = Oncogene amplification pattern in adenoid cystic carcinoma of the salivary glands. | journal = Oncol Rep | volume = 21 | issue = 5 | pages = 1215-22 | month = May | year = 2009 | doi = | PMID = 19360297 }}</ref> | Features:<ref name=pmid19360297>{{Cite journal | last1 = Sequeiros-Santiago | first1 = G. | last2 = García-Carracedo | first2 = D. | last3 = Fresno | first3 = MF. | last4 = Suarez | first4 = C. | last5 = Rodrigo | first5 = JP. | last6 = Gonzalez | first6 = MV. | title = Oncogene amplification pattern in adenoid cystic carcinoma of the salivary glands. | journal = Oncol Rep | volume = 21 | issue = 5 | pages = 1215-22 | month = May | year = 2009 | doi = | PMID = 19360297 }}</ref> | ||
*CD117 +ve. | *[[CD117]] +ve. | ||
*Cyclin D1 +ve. | *Cyclin D1 +ve/-ve. | ||
Others:<ref name=pmid24037641>{{Cite journal | last1 = Thompson | first1 = LD. | last2 = Penner | first2 = C. | last3 = Ho | first3 = NJ. | last4 = Foss | first4 = RD. | last5 = Miettinen | first5 = M. | last6 = Wieneke | first6 = JA. | last7 = Moskaluk | first7 = CA. | last8 = Stelow | first8 = EB. | title = Sinonasal Tract and Nasopharyngeal Adenoid Cystic Carcinoma: A Clinicopathologic and Immunophenotypic Study of 86 Cases. | journal = Head Neck Pathol | volume = | issue = | pages = | month = Sep | year = 2013 | doi = 10.1007/s12105-013-0487-3 | PMID = 24037641 }}</ref> | |||
*[[CK7]] +ve. | |||
*[[Pankeratin]] +ve. | |||
*[[p63]] +ve. | |||
*Calponin +ve. | |||
*S-100 +ve. | |||
Note: | |||
*Myoepithelial markers (e.g. calponin, actin) +ve. | *Myoepithelial markers (e.g. calponin, actin) +ve. | ||
**Typically -ve in PLGA. | **Typically -ve in [[PLGA]]. | ||
==Molecular== | ==Molecular== | ||
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*[[Salivary glands]]. | *[[Salivary glands]]. | ||
*[[Adenoid cystic carcinoma of the breast]]. | *[[Adenoid cystic carcinoma of the breast]]. | ||
*[[Adenoid cystic/basal cell carcinoma of the prostate]]. | |||
*[[Head and neck pathology]]. | *[[Head and neck pathology]]. | ||
*[[Head and neck cytopathology]]. | *[[Head and neck cytopathology]]. |
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