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Joanne Mansell

Clinical Professor

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Phone: (979) 845-0785

Mailstop: 4467

Department: VTPB

Photo of Mansell, Joanne


  • D.V.M. Veterinary Medicine, University of Florida 1989
  • M.S. Molecular Biology, University of Miami 1982
  • B.S. Biology, University of Miami 1980


  • Diplomate American College of Veterinary Pathologists
  • Doctor of Veterinary Medicine
  • Member of Royal College of Veterinary Surgeons
  • MS degree
  • BS degree
  • Texas Veterinary Medical Specialty License: 0094-S

Scholarly Interests

Comparative pathology with particular interest in dermatopathology. The effects of systemic disease on skin. The use of immunohistochemistry in neoplastic and inflammatory skin disease.


Endoscopic, biopsy, and histopathologic guidelines for the evaluation of gastrointestinal inflammation in small animals
Washabau RJ, Day MJ, Willard MD, Hall Ej, Jergens AE, Mansell J, et al
J Vet Intern Med. 24; 10-26.
Histopathological standards for the diagnosis of gastrointestinal inflammation in endoscopic biopsy samples from the dog and cat: A report from the World Small Animal Veterinary Association Gastrointestinal Standardization Group.
Day MJ, Bilzer T, Mansell J, Wilcock B, Hall EJ, Jergens A, Minami T, Willard M, Washabau R.
J Comp Path. Vol 138 , Supplement 1, S1-S44.
Morphologic, Immunohistochemical and molecular characterization of a hepatosplenic T-cell lymphoma in a dog.
Cienava EA, Barnhart KR, Brown MR, Mansell J, Dunstan R, Credille K
Vet Clin Pathol. 33: 105-110.
Primary intratracheal lymphoma in four cats.
Brown MR, Rogers KS, Mansell J, Barton C
JAAHA. 39:468-472.
Prevalence of gastric lesions in racing Alaskan sled dogs.
Davis MS, Willard MD, Nelson S, Mandsager RE, McKiernan S, Mansell JK, Lehenbauer TW
J Vet Intern Med. 17:311-314.
Follicular dysplasia in two cows.
Mansell JL
Vet Dermatol. 10:143-147.
Ulcerative facial and nasal dermatitis and stomatitis in cats associated with Feline Herpesvirus-1.
Hargis A, Ginn PE, Mansell JL
Vet Dermatol. 10:267-274.
Disseminated adenovirus infection associated with cutaneous and visceral hemorrhages in a nursing piglet.
Tang KN, Baldwin CB, Mansell JL, Styer EL
Vet Pathol. 32:433-437.
Disseminated chlamydial infection in an antelope.
Mansell J, Tang KN, Baldwin CA, STyer EL, Liggett AD.
JVDI. 7:397-399.
The histologic, ultrastructural and immunohistochemical features of a thyroid oncocytoma in a dog.
Tang KN, Mansell J, Herron A
Vet Pathol. 31:269-271.
Delayed granulomatous inflammatory response to a microchip in a dog.
Legallet C, Thieman Mankin K, Spaulding K, Mansell J
Potential ochronosis in a cat
Bryan LK, Gordon J, Rezenom J, Payne R, Mansell J.
CL Davis Annual meeting.
Potential ochronosis in a cat
Bryan LK, Gordo J, Rezenom Y, Payne R, Weeks B, Mansell J
Vet Pathol.
Epithelioid haemangiosarcoma in the ocular tissue of horses.
Arenas-Gamboa AM, Mansell J
J Comp Pathol. 144(4):328-33.
Pathology in practice. Disseminated idiopathic myofasciitis.
Pfent CM, Mansell J, Pool RR, Mitchell ME
J Am Vet Med Assoc. 242(1):43-5.
Cutaneous toxoplasmosis in two dogs.
Hoffmann AR, Cadieu J, Kiupel M, Lim A, Bolin SR, Mansell J
J Vet Diagn Invest. 24(3):636-40.
Multiple eccrine poromas in the paw of a dog.
Whitley DB, Mansell JE
Vet Dermatol. 23(2):167-70, e34.
Fecal and urinary N-methylhistamine concentrations in dogs with chronic gastrointestinal disease.
Berghoff N, Hill S, Parnell NK, Mansell J, Suchodolski JS, Steiner JM
Vet J. 201(3):289-94.
Natural Heterobilharzia americana infection in horses in Texas.
Corapi WV, Snowden KF, Rodrigues A, Porter BF, Buote MA, Birch SM, Jackson ND, Eden KB, Whitley DB, Mansell J, Edwards JF, Hardy J, Chaffin MK
Vet Pathol. 49(3):552-6.
A case series of thermal scald injuries in dogs exposed to hot water from garden hoses (garden hose scalding syndrome).
Quist EM, Tanabe M, Mansell JE, Edwards JL
Vet Dermatol. 23(2):162-6, e33.
Utility of endoscopic biopsies of the duodenum and ileum for diagnosis of inflammatory bowel disease and small cell lymphoma in cats.
Scott KD, Zoran DL, Mansell J, Norby B, Willard MD
J Vet Intern Med. 25(6):1253-7.
Correlating clinical activity and histopathologic assessment of gastrointestinal lesion severity: current challenges.
Willard M, Mansell J
Vet Clin North Am Small Anim Pract. 41(2):457-63.
Effect of tissue processing on assessment of endoscopic intestinal biopsies in dogs and cats.
Willard MD, Moore GE, Denton BD, Day MJ, Mansell J, Bilzer T, Wilcock B, Gualtieri M, Olivero D, Lecoindre P, Twedt DC, Collett MG, Hall EJ, Jergens AE, Simpson JW, Else RW, Washabau RJ
J Vet Intern Med. 24(1):84-9.
Encephalitozoon cuniculi infections in dogs: a case series.
Snowden KF, Lewis BC, Hoffman J, Mansell J
J Am Anim Hosp Assoc. 45(5):225-31.
Effect of sample quality on the sensitivity of endoscopic biopsy for detecting gastric and duodenal lesions in dogs and cats.
Willard MD, Mansell J, Fosgate GT, Gualtieri M, Olivero D, Lecoindre P, Twedt DC, Collett MG, Day MJ, Hall EJ, Jergens AE, Simpson JW, Else RW, Washabau RJ
J Vet Intern Med. 22(5):1084-9.
Analysis of gene transcript profiling and immunobiology in Shetland sheepdogs with dermatomyositis.
Wahl JM, Clark LA, Skalli O, Ambrus A, Rees CA, Mansell JL, Murphy KE
Vet Dermatol. 19(2):52-8.
Survival data for canine oral extramedullary plasmacytomas: a retrospective analysis (1996-2006).
Wright ZM, Rogers KS, Mansell J
J Am Anim Hosp Assoc. 44(2):75-81.
Liposarcoma in the nasal cavity of a cow.
Shive H, Mohammed F, Osterstock J, Porter B, Mansell J
Vet Pathol. 43(5):793-7.
Protothecal enteritis as a cause of protein-losing enteropathy in a bull.
Osterstock JB, Mansell JL, Roussel AJ Jr
J Am Vet Med Assoc. 227(9):1476-9, 1418.
Neurologic complications after melarsomine dihydrochloride treatment for Dirofilaria immitis in three dogs.
Hettlich BF, Ryan K, Bergman RL, Marks SL, Lewis BC, Bahr A, Coates JR, Mansell J, Barton CL
J Am Vet Med Assoc. 223(10):1456-61, 1434.
Ulcerative pododermatitis in a cat associated with Anatrichosoma sp.
Ramiro-Ibañez F, Winston J, O'Donnell E, Mansell J
J Vet Diagn Invest. 14(1):80-3.
Protein-losing enteropathy associated with cystic mucoid changes in the intestinal crypts of two dogs.
Willard MD, Zenger E, Mansell JL
J Am Anim Hosp Assoc. 39(2):187-91.
Consistency of endoscopic biopsies obtained from duodenum and ileum for feline small cell lymphoma (SC-LSA) and inflammatory bowel disease (IBD).
Scott K, Zoran D, Mansell J, Norby B, Willard MW
J Vet Intern Med. 25(3) 695-696.
Cerebral and renal phaeohyphomycosis in a dog infected with Bipolaris sp.
Giri KD, Sims WP, Sura R, Cooper JJ, Gavrilov BK, Mansell J
Vet Pathol. 48; 754-757.
Multicentric squamous cell carcinoma in situ associated with papillomavirus in a ferret.
Rodrigues A, Gates L, Payne HR, Kuipel M, Mansell J
Vet Pathol. 47:964-968.
A challenging case: getting to the source of a dog's chronic spinal pain
Ledbetter EC, Kerwin SC, Mansell JK, Henry GA
Vet Medicine. Vol 99(9) 680-681.
Chlamydial infections in puff adders, Bitis arietans
Jacobson ER, Gaskin JM, Mansell J
J Zoo and Wildlife Medicine. 20(3)364-369.
Cutaneous fibropapillomas of green turtles (Chelonia mydas).
Jacobson ER, Mansell JL, Sundberg JP, Hajjar L, Reichmann MR, Ehrhart LM, Walsh M, Murru F
J. Comp Pathol. 101:39-52.
Cellular and molecular consequences of reduced cell water content.
Mansell JL, Clegg JS.
Cryobiology. 20:591-613.
Cellular and molecular consequences of reduced cell water content.
Clegg JS, Mansell JL
Cryobiology. 19:672-673.
Lymphocytic ganglioneuritis secondary to intervertebral disk extrusion in a dog.
Mouradian-Darby AE, Young BD, Griffin JF, Mansell J, Levine JM
J Small An Practice. 55(9)471-474.
Corynebacterium pseudotuberculosis in a cat
Diesel A, Patterson AP, Lawhon SD, Mansell J
Vet Dermatol. 25:145-162.
Pawpad Hyperkeratosis in a cat: a disorder of cornification resembling human palmoplanter keratodermis.
Wahl KL, Mansell J, Evans J, Rodrigues Hoffmann A
Vet Pathol.
Choroid plexus papillomas in three horses
Perrry AL, Diaz Delgado J, Eden K, Arenas Gamboa AM, Mansell J, Porter BF
Vet Pathol.
Effect of endoscopic forceps on quality of duodenal mucosal biopsy in healthy dogs.
Goutal-Landry CM, Mansell J, Ryan KA, Gashen FP.
J Vet Intern Med. 27:456-461.
Immunohistochemical expression of ionized calcium binding adapter molecule 1 in cutaneous histiocytic proliferative, neoplastic and inflammatory disorders of dogs and cats.
Pierezan F, Mansell J, Ambrus A, Hoffmann AR
J Comp Pathol. 151(4):347-51.
Description of presentation, treatment and outcome of squamous cell carcinoma in the perineal region of 9 goats.
Sprake PM, Lamb L, Mansell J
Canadian Vet Journal.
Serum and fecal canine alpha1-proteinase inhibitor concentrations reflect the severity of intestinal crypt abscesses and/or lacteal dilation in dogs.
Heilmann RM, Parnell NK, Grutzner N, Mansell J, Berghoff N, Schellenberg S, Reusch CE, Suchodolski JS, Steiner JM
Veterinary Journal.
Extensive solar induced squamous cell carcinoma/squamous cell carcinoma in situ in a dog treated with helical tomortherapy.
Diesel A, Deveau M, Mansell J, Rodrigues-Hoffman A
Abstract in proceedings of the North American Veterinary Dermatology Forum, April 2015..
Design of a simplified histopathologic model for gastrointestinal inflammation in dogs.
Jergens AE, Evans RB, Ackermann M, Hostetter J, Willard M, Mansell J, Bilzer T
Vet Pathol.
Comparison of quality and diagnostic adequacy of canine duodenal mucosal biopsy specimens obtained with different endoscopic forceps in 17 dogs
Goutal C, Mansell J, Ryan K, Gashen F
J Vet Intern Med. Vol 26(3);768-769.
Initiation and ultrastructure of a reptilian fibroblast cell line obtained from cutaneous fibropapillomas of the Green Turtle (Chelonia mydas)
Mansell J, Jacobson ER, Gaskin JM
In Vitro Cellular and Developmental Biology. 25(11):1062-1064.
Serum and fecal canine alpha1-proteinase Inhibitor concentrations are associated with the severity of crypt abscesses and/or lacteal dilation in dogs with inflammatory bowel disease.
Heilmann RM, Parnell NK, Mansell J, Berghofff N, Minamoto T, Sattasathuchana P, Grutzner N, Suchodolski JS, Steiner JM
J Vet Intern Med.
Immunohistochemical expression of ionized calcium-binding adapter molecule 1 (Iba-1) in cutaneous histiocytic proliferative and inflammatory disorders of dogs and cats.
Pierezan F, Mansell J, Ambrus A, Rodrigues Hoffman A
vet pathol.
The skin microbiome in healthy and allergic dogs
Rodrigues AR, Patterson AP, Diesel A, Lawhon SD, Li HJ, Elkins C, Mansell J
PLOS 1. 8;9(1):e83197.

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